Soil compaction is the pressing together of soil particles so that the pore space between them is reduced and bulk density increases. It is caused by heavy machinery, repeated ploughing at the same depth, tillage of wet soil and trampling by cattle. A compacted layer (hard pan) restricts root penetration, air and water movement, reduces infiltration and increases run-off, and finally lowers crop yield.

Mulching is the practice of covering the soil surface around plants with a layer of organic material (straw, dry leaves, grass, compost, husk) or inorganic material (plastic film, gravel). The cover checks evaporation, conserves soil moisture, suppresses weeds, moderates soil temperature, prevents erosion and crusting, and on decomposition organic mulch adds humus and nutrients to the soil.

Live fencing means growing a close row of living plants, shrubs or trees along the boundary of a field so that they act as a natural fence. Species such as *Jatropha*, *Agave*, *Karonda*, *Mehndi*, *Bamboo*, *Thuja* and thorny *Ber* are commonly used. It is cheap and long-lasting, keeps out stray cattle, acts as a windbreak, checks soil erosion, provides fuel, fodder and green leaf manure, and gives shelter to birds and friendly insects.

Panchgavya Krishi is a traditional Indian organic system based on five products of the cow — cow dung, cow urine, milk, curd and ghee. These are fermented together (often with additions such as jaggery, banana, tender coconut water and yeast) for about 15–20 days to make Panchgavya. Sprayed at 3 per cent solution or used through irrigation, it works as a growth promoter, immunity booster and bio-pesticide, and improves soil microbial life.

Conversion to organic soil

Conversion is the planned change-over of a chemically farmed field into a certified organic field. It normally takes two years for annual crops and three years for perennial crops.

Steps

1. Survey and soil testing: Record the history of chemical use and test the soil for pH, organic carbon and nutrients.
2. Stop chemical inputs: Discontinue synthetic fertilisers, pesticides, weedicides and growth regulators from the first day of conversion.
3. Create isolation: Provide a buffer zone, bunds or live fencing so that spray drift and run-off from neighbouring chemical fields do not enter.
4. Build organic matter: Apply FYM, compost, vermicompost, green manure (dhaincha, sunhemp), crop residue and bio-fertilisers (Rhizobium, Azotobacter, PSB).
5. Restore biology: Use cow-based preparations such as Jeevamrit, Beejamrit and Panchgavya to raise microbial population.
6. Rotation and diversity: Introduce legumes and mixed cropping to fix nitrogen and break pest cycles.
7. Pest and weed control: Use neem extract, trap crops, pheromone traps, bird perches, mulching and manual weeding.
8. Record keeping and certification: Maintain a farm diary; register under PGS-India or a third-party certifying agency such as one accredited by APEDA/NPOP.

Organic tillage

Tillage in organic farming is minimum and timely, aimed at protecting soil structure and soil life.

• Summer deep ploughing once, to expose pests and improve infiltration.
• Light secondary tillage with harrow or cultivator instead of repeated rotavator use.
• Avoid ploughing wet soil, which causes compaction.
• Use minimum, zero or conservation tillage with residue retention where possible.
• Contour and across-slope ploughing on sloping land to check erosion.
• Green manure crops are ploughed in at flowering, 40–45 days after sowing.

Meaning

Crop rotation is the practice of growing different crops one after another in a planned sequence on the same piece of land, instead of growing the same crop year after year. The sequence is designed so that crops with different rooting depths and different nutrient demands follow each other, and a legume is included to restore nitrogen.

Principles

• A deep-rooted crop should follow a shallow-rooted crop.
• A leguminous crop should follow an exhaustive cereal crop.
• Crops of the same family should not follow each other, to break pest and disease cycles.
• Crop choice must suit the soil, rainfall and market of the area.

Advantages

• Maintains and improves soil fertility; legumes fix atmospheric nitrogen.
• Breaks the life cycle of insects, diseases and weeds, so fewer pesticides are needed.
• Uses nutrients and moisture from different soil layers, so the soil is not exhausted.
• Improves soil structure and organic matter.
• Spreads labour demand and market risk over the year and gives steadier income.
• Controls soil erosion when a cover or fodder crop is included.

Examples

• Two-year rotation: Rice – Wheat – Green gram (moong).
• One-year rotation: Maize – Potato – Onion.
• Legume-based: Soybean – Wheat – Fallow (common in Madhya Pradesh).
• Three-year rotation: Cotton – Wheat – Sugarcane – Berseem.
• Rainfed: Sorghum – Chickpea (gram).

Meaning

Crop–animal association (integrated crop–livestock farming) is a system in which crop production and animal rearing are carried on together on the same farm so that the waste of one becomes the input of the other. It is the very basis of organic farming, because organic manure and draught power come from animals while fodder and residue come from crops.

How the cycle works

• Crops supply straw, husk, bran, oil cake, green fodder and grazing to animals.
• Animals return dung, urine, bone meal and litter, which are converted into FYM, compost, vermicompost, Jeevamrit and Panchgavya.
• Manure restores nitrogen, phosphorus, potash and micronutrients to the soil and increases soil microbes and earthworms.
• Bullocks give draught power for ploughing and transport, reducing diesel cost.

Common associations

• Crop + dairy cattle or buffalo (most common in India).
• Crop + goat or sheep rearing (sheep penning enriches the field directly).
• Crop + poultry (poultry manure is rich in nitrogen; birds eat insects).
• Crop + fish + duck in low-lying areas; crop + apiculture for pollination and honey.
• Agro-forestry with silvipasture for fodder trees.

Advantages

• Closed nutrient cycle and low dependence on purchased inputs.
• Additional and regular income from milk, eggs, meat and wool, which reduces risk when a crop fails.
• Round-the-year employment for the farm family.
• Better use of by-products that would otherwise be wasted or burnt.
• Improves soil health, biodiversity and sustainability of the small farm.

Limitations

Need of extra capital and shed space, risk of animal disease, shortage of green fodder in summer and additional labour.

Meaning

A weed is any unwanted plant that grows where it is not desired and competes with the crop for light, water, nutrients and space. Weeds may reduce yield by 20–60 per cent, harbour pests and diseases, and lower the quality and market price of produce. Common weeds are *Cyperus rotundus* (motha), *Parthenium* (gajar ghas), *Chenopodium* (bathua), *Phalaris minor* (gehunsa) and *Cynodon* (doob).

Methods of organic weed management

### Preventive

• Use clean, certified seed free from weed seed.
• Apply only well-decomposed compost and FYM, since fresh manure carries weed seeds.
• Clean implements, irrigation channels and field bunds.

### Cultural

• Timely sowing, correct plant spacing and higher seed rate for quick canopy cover.
• Crop rotation and intercropping so that weeds do not adapt to one crop.
• Growing smother or cover crops such as cowpea and sunhemp.
• Summer deep ploughing and stale seedbed technique.

### Mechanical

• Hand weeding, hoeing, khurpi and wheel hoe, and inter-culture with a cultivator.
• Mulching with straw, leaves or plastic to block sunlight.
• Flooding in paddy and mowing on bunds before weeds set seed.

### Biological

• Use of insects and pathogens, e.g. the Mexican beetle *Zygogramma bicolorata* against *Parthenium*, and grazing by sheep and goats.

Conclusion

In organic farming, chemical herbicides are not allowed. Therefore an integrated approach — prevention, rotation, mulching, timely mechanical weeding and biological control — is the correct strategy. Weeds must be removed in the critical period of crop–weed competition, generally the first 20–45 days after sowing.

Meaning

Seed conservation means protecting seed from deterioration, pests and loss of germination, and preserving valuable local varieties for future use. In organic farming it is very important, because the farmer must produce and keep his own seed rather than buy treated commercial seed every season.

Selection of seed for storage

Choose seed from healthy, disease-free, true-to-type plants of the middle of the field; harvest at full maturity; thresh carefully; clean and grade; and dry in shade or mild sun so that moisture comes down to a safe level — about 8–10 per cent for cereals and 6–8 per cent for oilseeds.

Organic seed treatment before storage

• Beejamrit treatment (cow dung, cow urine, lime, soil and water).
• Coating with cow dung slurry, ash, turmeric powder or neem leaf powder.
• Mixing dried neem leaves, *Vitex negundo* (nirgundi) leaves, camphor, dried red chilli or garlic in the storage container.
• Sun drying and hot-water treatment against seed-borne diseases.

Methods of storage

• Traditional structures: mud *kothi*, *bukhari*, *morai*, bamboo bins, gunny bags on wooden platforms.
• Modern: airtight metal bins, super-grain bags, plastic drums with tight lids.
• Store in a cool, dry, dark and well-ventilated room; keep bags above the floor and away from walls; inspect periodically for insects and moulds.

Conservation of genetic diversity

• In situ / on-farm conservation: farmers keep growing traditional varieties in their fields.
• Ex situ conservation: gene banks, seed banks, community seed banks and the National Bureau of Plant Genetic Resources (NBPGR), New Delhi.
• Village seed banks and *beej swaraj* movements help exchange desi varieties.

Importance

Ensures timely availability of quality seed, reduces cost, protects indigenous varieties from extinction, maintains biodiversity and makes the farmer self-reliant.

Meaning

Biodynamic agriculture is the oldest organised system of organic farming. It was founded by the Austrian philosopher Dr. Rudolf Steiner in 1924 through a series of lectures on agriculture. It treats the farm as a single living organism in which soil, plants, animals and human beings form one self-sustaining whole, and it links farm operations with cosmic and lunar rhythms. Produce is certified under the Demeter trademark.

Main principles

• The farm should be self-sufficient in manure, seed and fodder — a closed system.
• Soil is a living body; its fertility must be built with compost, not chemicals.
• Sowing, transplanting, harvesting and spraying are done according to a biodynamic calendar based on the position of the moon and constellations.
• Diversity of crops and integration of livestock are essential.

Biodynamic preparations

Nine special preparations, numbered BD 500 to BD 508, are used in very small quantities:

• BD 500 (horn manure): cow dung fermented in a cow horn buried in soil during winter; sprayed on soil to stimulate root growth and microbial life.
• BD 501 (horn silica): powdered quartz in a horn, buried in summer; sprayed on foliage to improve photosynthesis and quality.
• BD 502–507: compost preparations from yarrow, chamomile, stinging nettle, oak bark, dandelion and valerian, which regulate the composting process and nutrient cycling.
• BD 508: horsetail (*Equisetum arvense*) decoction, used against fungal diseases.

Cow Pat Pit (CPP) is another widely used preparation in India.

Advantages and limitations

It improves soil humus, water-holding capacity, taste and shelf life of produce, and gives a premium price. However, it needs skill, careful timing and cattle on the farm, and the cosmic component is not accepted by all scientists.

Natueco farming

Natueco stands for *Nature–Eco–Community* farming. It was developed in Maharashtra by Shri Deshpande (Institute for Natural Resources, Pune) and is popularly linked with the *Amrit Mitti* and *Amrit Jal* techniques. It rejects both chemical inputs and blind imitation of tradition, and instead applies scientific observation to natural processes.

Principles

• Follow nature's own method of building soil, but examine every step critically ("science of nature, not blind faith").
• Harvest the three free resources — sunlight, air (CO₂) and water — as efficiently as possible.
• Build fertile soil, called Amrit Mitti, from biomass, cow dung, cow urine and soil, layered and kept moist with Amrit Jal.
• Practise intensive canopy management and root management so that every leaf gets light.
• Recycle all farm and kitchen waste; keep the soil covered.

Features: raised beds, dense planting, heavy mulching, pruning for light penetration, and very high yields from a small area. It suits terrace gardens and small farms.

Homa farming

Homa (or Agnihotra) farming is a system based on the Vedic fire ritual. It was revived by Shree Vasant Paranjpe. Its central idea is that purification of the atmosphere by a specific fire heals the soil, plants, animals and human beings.

Practice

• Agnihotra: a small fire is lit in an inverted copper pyramid exactly at sunrise and sunset, using dried cow dung cakes, ghee and unpolished rice, with two mantras.
• Tryambakam Homa: a longer fire performed for extended periods over the farm.
• The ash produced is highly valued; it is mixed with water or cow urine and applied to soil, seeds and plants as *Agnihotra ash* solution.

Claimed benefits: improved seed germination, healthier plants, reduced pest attack, better taste and shelf life, and a purified micro-climate. It is used with organic practices, not as a substitute for manure and compost.

Comparison

Natueco is an ecological and scientific soil-building system, while Homa farming is a spiritual and atmospheric approach; both reject chemicals and both are practised together with organic and biodynamic methods in India.

Introduction

Developing an organic farm means converting a farm into a self-sustaining unit in which fertility is built from within, no synthetic chemical is used, and the produce can be certified as organic. The National Programme for Organic Production (NPOP) and PGS-India lay down the standards in India.

1. Site selection and survey

Select land with assured water, good drainage and no history of industrial pollution. Prepare a farm map showing fields, water sources, trees, cattle shed and compost area. Record the past use of chemicals; a conversion period of two years for annual and three years for perennial crops is required.

2. Isolation and buffer zone

Create a buffer strip of 5–10 metres, bunds, trenches or live fencing of jatropha, agave, karonda or bamboo so that spray drift, run-off and irrigation water from chemically farmed neighbours do not contaminate the field.

3. Soil testing and fertility building

Test pH, organic carbon, N-P-K and micronutrients. Build fertility through:

• Farmyard manure, compost (NADEP, Indore method) and vermicompost.
• Green manuring with dhaincha, sunhemp or cowpea, ploughed in at flowering.
• Green leaf manure of gliricidia, neem and karanj.
• Bio-fertilisers: Rhizobium, Azotobacter, Azospirillum, PSB, Mycorrhiza.
• Cow-based inputs: Jeevamrit, Beejamrit, Panchgavya, Amrit Pani.
• Rock phosphate, bone meal, wood ash and gypsum where permitted.

4. Water and soil conservation

Contour bunding, farm pond, trenches, mulching, drip and sprinkler irrigation, and rainwater harvesting reduce erosion and save water.

5. Cropping system

• Choose crops suited to local soil and climate and with market demand.
• Follow a legume-based crop rotation, mixed and inter-cropping, and border and trap crops.
• Maintain diversity — cereals, pulses, oilseeds, vegetables, fruit trees and agro-forestry.

6. Livestock integration

Keep cows, buffaloes, goats or poultry. They provide dung and urine for manure and preparations, draught power, and additional income from milk and eggs. Two to three cattle are generally enough for one hectare.

7. Seed and planting material

Use untreated, non-GMO, preferably desi and local varieties. Treat seed with Beejamrit, cow dung slurry or *Trichoderma*.

8. Pest and disease management

Use resistant varieties, timely sowing, crop rotation, pheromone and light traps, yellow sticky traps, bird perches, neem seed kernel extract, dashparni ark, garlic-chilli extract, *Trichoderma*, *Beauveria*, *Bacillus thuringiensis* and release of *Trichogramma*.

9. Weed management

Summer ploughing, stale seedbed, mulching, proper spacing, cover crops and mechanical weeding. No herbicide is allowed.

10. Record keeping and certification

Maintain a daily farm diary of inputs, operations, purchases and sales. Apply for certification through PGS-India (group-based, low cost) or an NPOP-accredited third-party agency for export. Certification gives the "India Organic" or "Jaivik Bharat" logo.

11. Post-harvest handling and marketing

Store and pack organic produce separately from conventional produce; use clean, non-contaminating containers; label properly. Sell through organic *mandis*, farmer producer organisations, weekly markets, online platforms and direct consumer contact to get a premium price.

Conclusion

Developing an organic farm is a step-by-step, three-to-four-year process combining soil building, biodiversity, livestock, careful record keeping and marketing. Yields may fall slightly in the first two years but stabilise later with lower cost, healthier soil and a better price, making the farm economically and ecologically sustainable.

Introduction

Crop planning is the advance decision about which crops to grow, in what area, in what sequence and by what practices, so that the available land, water, labour and capital give the highest sustainable return. Crop management is the actual execution of that plan from field preparation to marketing. In organic farming both must be based on soil health, diversity and self-reliance rather than on purchased chemicals.

Objectives of crop planning

• Maximum and stable production per unit area, water and labour.
• Maintenance of soil fertility and long-term productivity.
• Efficient use of the rainy season and residual moisture.
• Spread of risk against drought, pest attack and price fall.
• Regular employment and income throughout the year.
• Meeting the food, fodder and fuel needs of the farm family.

Factors affecting crop planning

1. Climate: rainfall amount and distribution, temperature, length of growing season.
2. Soil: texture, depth, pH, drainage and fertility.
3. Irrigation: availability and reliability of water.
4. Resources: capital, labour, bullock or machine power, storage.
5. Market: demand, price, distance from *mandi*, processing facility.
6. Government policy: MSP, subsidy, crop insurance, procurement.
7. Family needs and experience of the farmer.

Components of crop planning

• Selection of crops and varieties: short-duration, drought-tolerant, disease-resistant, locally adapted varieties.
• Cropping systems: mono-cropping, mixed cropping, inter-cropping (e.g. soybean + pigeon pea), relay cropping, multiple cropping, sequential cropping.
• Crop rotation: legume-based rotations such as soybean–wheat, rice–wheat–moong, maize–potato–onion.
• Cropping calendar: deciding sowing and harvesting dates for kharif, rabi and zaid seasons.

Crop management practices

### Before sowing
Summer deep ploughing, field levelling, bund repair, application of FYM/compost, seed selection and treatment with Beejamrit or *Trichoderma*.

### Sowing
Correct time, depth, seed rate, spacing and method (line sowing, broadcasting, transplanting, ridge and furrow, raised bed).

### Nutrient management
Integrated organic nutrition — FYM, vermicompost, green manure, bio-fertilisers, Jeevamrit, oil cakes and crop residue recycling.

### Water management
Irrigation at critical growth stages, drip and sprinkler use, mulching, and drainage of excess water.

### Weed, pest and disease management
Timely inter-culture, mulching, trap and border crops, pheromone traps, botanical extracts and bio-control agents.

### Harvesting and post-harvest
Harvest at proper maturity, careful threshing, drying to safe moisture, grading, scientific storage and value addition.

Records and evaluation

Maintain a farm diary of cost and returns for each crop, prepare a simple budget, and compare planned with actual results to improve the next season's plan.

Conclusion

Sound crop planning converts a farm from a guess-based activity into a scientific enterprise. When combined with good management — timely operations, balanced organic nutrition, water saving and market linkage — it raises yield, reduces risk and cost, protects the soil and secures the income of the farmer in the long run.

Meaning and definition

Mulching is the practice of spreading a protective layer of material on the soil surface around growing plants. The material used is called mulch. In organic farming, mulching is one of the cheapest and most effective ways of conserving moisture, controlling weeds and building soil organic matter.

Types of mulch

### 1. Organic mulch

• Crop residue: paddy straw, wheat straw, sugarcane trash, maize stalks.
• Leaves and grass: dry leaves, grass clippings, weed biomass cut before flowering.
• Farm by-products: groundnut shell, rice husk, coir pith, saw dust, bagasse.
• Compost and FYM spread as a surface layer.
• Living mulch: a low-growing cover crop such as cowpea, groundnut or clover grown between rows.

### 2. Inorganic / synthetic mulch

• Plastic film: black polythene (checks weeds), silver-black (repels aphids), transparent (used for soil solarisation), commonly 25–50 micron.
• Gravel, pebbles, sand and stone chips in orchards and dry regions.

### 3. Others
Paper mulch, jute matting and biodegradable films.

Methods of application

Mulch is spread after sowing or transplanting when the soil has enough moisture. Organic mulch is applied 5–10 cm thick, kept a little away from the plant stem to avoid rot. Plastic mulch is laid over raised beds, the edges buried in soil, and holes are made for planting; drip lines are laid under the film.

Advantages

• Moisture conservation: reduces evaporation from the soil surface, so irrigation interval increases and water is saved — very useful in dryland and rainfed farming.
• Weed control: blocks sunlight and stops weed germination, cutting weeding cost.
• Temperature moderation: keeps soil cool in summer and warm in winter, favouring root growth and microbial activity.
• Soil structure and erosion control: breaks the impact of raindrops, prevents crusting, run-off and soil erosion, and improves infiltration.
• Organic matter and nutrients: organic mulch decomposes into humus and releases nitrogen, phosphorus, potash and micronutrients; it feeds earthworms and microbes.
• Cleaner produce and less disease: fruits and vegetables do not touch wet soil, so rotting and soil-borne infection are reduced.
• Earlier and higher yield: better moisture and temperature give faster growth and higher quality produce, especially in vegetables and strawberry.

Limitations

• Cost of material and labour for spreading.
• Straw mulch can shelter rodents, termites and snails, and may carry disease if diseased residue is used.
• Plastic mulch causes pollution and needs safe disposal; it is not permitted as biodegradable input in some organic standards.
• Excess mulch in heavy soils may cause waterlogging or nitrogen immobilisation.

Conclusion

Mulching is a simple, low-cost practice that conserves water, controls weeds, improves soil health and increases yield. For organic farmers, locally available crop residue and leaf mulch is the best option, since it protects the soil today and becomes manure tomorrow.

Introduction

Seed is the most basic input of agriculture; the whole crop depends on its quality. Seed evaluation means judging the quality of a seed lot, characterization means describing and identifying the variety by its distinguishing features, and multiplication means increasing the quantity of that seed through a controlled generation system while keeping its purity.

A. Criteria for seed evaluation

### 1. Physical quality

• Genetic purity: the lot must be true to the variety; minimum standards are usually 98 per cent for certified seed.
• Physical purity: freedom from inert matter, soil, chaff, other crop seed and weed seed.
• Uniformity of size, shape and colour, and proper grading.
• Test weight (1000-seed weight) and seed density.

### 2. Physiological quality

• Germination percentage: the main criterion; usually a minimum of 70–85 per cent depending on crop.
• Vigour: speed and uniformity of emergence, seedling length and dry weight, measured by accelerated ageing or the electrical conductivity test.
• Viability: tested quickly by the tetrazolium (TTC) test.
• Moisture content: must be at or below the safe limit (8–12 per cent) for storage.
• Dormancy should be broken before sowing.

### 3. Health quality
Freedom from seed-borne fungi, bacteria, viruses, nematodes and insect damage, tested by blotter, agar plate and washing tests.

### 4. Other criteria
Freedom from admixture, absence of objectionable weed seed, proper labelling, and validity period of the germination test.

B. Characterization of seed and variety

Characterization means recording the distinctive features so that the variety can be identified and protected. It is done through DUS testing — Distinctness, Uniformity and Stability — under the Protection of Plant Varieties and Farmers' Rights Act, 2001.

• Morphological characters: seed shape, size, colour, surface texture, hilum, plant height, leaf shape, flower colour, days to maturity.
• Physiological characters: maturity duration, photo-sensitivity, dormancy.
• Biochemical characters: protein, oil, starch content, electrophoresis of seed proteins.
• Molecular characters: DNA fingerprinting with RAPD, SSR and SNP markers, which give the most reliable identification.
• Agronomic and resistance characters: yield potential, resistance to major pests, diseases, drought and lodging.

C. Seed multiplication

Seed is multiplied through a generation system so that genetic purity is not lost:

1. Nucleus seed: the original pure seed produced by the breeder; 100 per cent genetically pure.
2. Breeder seed: produced from nucleus seed under the direct supervision of the breeder; golden yellow tag.
3. Foundation seed: produced from breeder seed by NSC, state seed corporations and agricultural universities; white tag.
4. Certified seed: produced from foundation seed by registered growers and supplied to farmers; blue/azure tag. Truthfully labelled seed carries an opal green tag.

### Requirements during multiplication

• Isolation distance from other varieties of the same crop to prevent cross-pollination.
• Roguing: removal of off-type, diseased and other-crop plants at critical stages.
• Field inspection by the State Seed Certification Agency at seedling, flowering and maturity stages.
• Careful harvesting, threshing, drying, processing, treatment, bagging, tagging and storage to maintain identity.

Conclusion

Systematic evaluation guarantees that the seed will germinate and perform, characterization protects the identity and the rights of the breeder and the farmer, and a disciplined multiplication chain ensures that pure, high-quality seed reaches the field in adequate quantity. Together they form the foundation of a productive and sustainable seed industry.