Commercial Horse Gram Farming: Dryland Kulthi Guide

Horse Gram Farming Overview

Horse gram, locally known as Kulthi, Kollu, Gahat, or Ulava, is a highly resilient pulse crop native to the Indian subcontinent. It has been cultivated for thousands of years as a staple food, livestock feed, and traditional medicine. This legume is known for its ability to grow in poor soils and under severe moisture stress where other crops fail. It belongs to the Fabaceae family and is widely grown as a rainfed crop in southern, central, and northern hilly regions of India. The seeds are small, flattened, and oval, ranging in color from light brown to dark reddish brown or black. The plant is a low-growing, trailing herb that covers the ground, helping to conserve soil moisture and prevent erosion.

Commercial cultivation of horse gram is highly cost-effective because it requires minimal inputs, fertilizers, and irrigation. It is an excellent crop for marginal farmers who own drylands with low fertility. The crop also fixes atmospheric nitrogen, which helps in improving soil fertility for subsequent crops. In addition to the grain, the green foliage and dry husk are highly valued as nutritious fodder for horses, cattle, and sheep, providing an additional source of income for livestock farmers. Understanding the proper agronomic practices can help farmers maximize yields even on marginal land holdings. Since it can grow under low management, it is a key risk-mitigation crop in drought-prone areas.

Dryland Suitability and Tolerances

Horse gram is the ultimate dryland pulse crop, uniquely adapted to dry zones with low annual rainfall ranging from 500 to 800 mm. The crop possesses a deep taproot system that penetrates dry soil layers to extract moisture, combined with a high tolerance for ambient heat. It can survive long dry spells during its vegetative growth phase without showing signs of severe stress. This makes it a dependable crop for rainfed agriculture in states like Karnataka, Tamil Nadu, Andhra Pradesh, Maharashtra, Chhattisgarh, and Madhya Pradesh, as well as the hilly terrains of Uttarakhand and Himachal Pradesh. It has an inherent physiological mechanism to adjust leaf orientation to reduce moisture loss.

The crop is also tolerant to a wide range of temperatures, although it performs best in warm climates. It is sensitive to frost and cold winds, which is why it is grown during the late Kharif or early Rabi season in the plains, and during the summer or monsoon season in hilly areas. It can grow in low-input conditions and does not require sophisticated irrigation infrastructure. However, farmers should note that while it tolerates drought, it cannot tolerate waterlogging. Even temporary flooding can cause root rot and lead to complete crop failure, so selecting fields with natural slope and drainage is critical. Soil moisture levels should be checked to prevent damping off during heavy rains.

Soil and Land Preparation

One of the key advantages of horse gram is its adaptability to poor, marginal soils where other commercial crops cannot survive. It can be grown on gravelly, sandy, stony, or shallow soils, as well as red and laterite soils. It also grows in moderately saline soils, though highly alkaline soils should be avoided. The optimal soil pH range is 5.5 to 7.5. The crop does not require an intensively prepared seedbed, which saves on land preparation costs and labor. Its ability to grow on slopes makes it an excellent choice for terrace farming in hilly states.

For field preparation, one or two light ploughings followed by a harrowing are usually sufficient to clear the weeds and break large clods. Planking should be done to level the field and conserve soil moisture. If the soil is extremely poor, incorporating 4 to 5 tonnes of well-decomposed farmyard manure per acre during the last ploughing can boost seedling vigor. Proper drainage channels must be created around the field to prevent water from stagnating during heavy rains. Farmers should use their Soil Health Card recommendations to check for any severe nutrient deficiencies before sowing. Applying a small amount of compost helps in early growth in rocky soils.

Sowing Season and Seed Rate

The sowing window for horse gram varies depending on the region and rainfall patterns. In North India and hilly regions, it is sown in June or July with the onset of the monsoon. In South India, it is primarily sown as a late Kharif or Rabi crop in September, October, or November, using the residual moisture of the southwest monsoon. Choosing the correct sowing window ensures that the crop receives sufficient moisture during its early vegetative growth and gets dry weather during harvest.

For a pure crop, a seed rate of 10 to 12 kg per acre is recommended. If it is grown as an intercrop or mixed crop with sorghum, maize, or finger millet, the seed rate is reduced to 5 to 6 kg per acre. Before sowing, treat the seeds with Rhizobium culture to enhance nitrogen fixation. Seed treatment with Trichoderma viride at 4 grams per kg of seed is also recommended to protect the crop from soil-borne diseases like root rot. Sourcing quality seeds from local seed centers or agricultural offices is highly recommended. Farmers should ensure seeds are certified for high purity.

Sowing Methods and Spacing

Sowing can be done either by broadcasting or by line sowing. Line sowing is highly recommended because it allows for easy weed control, intercultural operations, and harvesting. Line sowing is done using a seed drill or by dropping seeds behind a country plough. Maintain a row-to-row spacing of 30 cm and a plant-to-plant spacing of 10 cm. This spacing ensures optimal plant density and allows the crop to cover the soil quickly. This plant structure reduces the overall evaporation of moisture from the field.

Seeds should be sown at a shallow depth of 2 to 3 cm. Sowing too deep can result in poor germination, especially in soils that dry out quickly at the surface. After sowing, run a light plank over the field to cover the seeds and press the soil, which helps in quick moisture absorption. If sowing is done by broadcasting, a light harrowing should follow to cover the seeds. Emergence typically occurs within 3 to 5 days under favorable soil moisture conditions. Thinning should be carried out within two weeks to remove dense patches.

Irrigation and Moisture Management

Horse gram is almost exclusively grown as a rainfed crop and does not require regular irrigation. The crop utilizes soil moisture from previous monsoon rains. However, if there is a prolonged dry spell during critical growth stages like flowering and pod development, the crop can suffer, leading to lower yields. Providing a light protective irrigation during these stages can make a significant difference in grain size and total yield. Drip or sprinkler methods are highly effective if water resources are limited.

Water management in horse gram is more about drainage than irrigation. Heavy clay soils or fields with poor drainage must be avoided because standing water is highly detrimental. In case of heavy rains, ensure that excess water is drained out immediately through the drainage furrows. Drip or sprinkler irrigation can be used if water is available, but this is rarely done because the crop is low-value and highly drought-tolerant. Soil moisture conservation practices like mulching can also help in drylands. Proper layout planning is necessary before the start of the monsoon season.

Managing Dry Spells

If a dry spell occurs during the pod-filling stage, the seeds may remain small and shriveled. A single protective irrigation, if water is available, will double the yield. Farmers can use farm ponds or harvested rainwater for this purpose. This practice is highly recommended by local Krishi Vigyan Kendras in dryland zones. In addition, constructing small bunds around the field helps to retain rainwater where it falls, allowing it to slowly seep into the ground.

Nutrient and Fertilizer Guidelines

Being a leguminous crop, horse gram fixes atmospheric nitrogen through root nodules, which satisfies most of its nitrogen requirements. Consequently, it has low fertilizer needs. However, applying a small amount of starter nitrogen and phosphorus can help in early root development and crop establishment. An indicative recommended dose is 8 to 10 kg Nitrogen and 16 to 20 kg Phosphorus per acre. These amounts provide the seedlings with enough nutrients until nodulation begins.

The entire dose of fertilizers should be applied as a basal application at the time of sowing. It is best to place the fertilizer below the seed using a seed-cum-fertilizer drill. Applying farmyard manure during field preparation is highly beneficial for improving soil structure and water-holding capacity. Farmers should get their soil tested and follow the Soil Health Card recommendations. If the soil is acidic, applying lime under expert guidance can improve root nodulation and crop yield. Balanced nutrition is vital to build drought resistance.

Weed Control and Intercultural Operations

Weed competition can reduce horse gram yields if not managed during the early growth stages. The first 25 to 30 days are critical. Once the crop establishes, its trailing habit allows it to spread rapidly across the field, forming a dense green canopy that naturally smothers weeds. Therefore, early weeding is vital to give the crop a head start over fast-growing weeds. A weed-free environment in the early stages improves sunlight interception and root spread.

One hand weeding or inter-cultivation with a hand hoe at 20 to 25 days after sowing is usually sufficient for weed control. In line-sown crops, mechanical weeding using a wheel hoe can be done to save labor costs. Avoid weeding operations after the flowering stage begins, as this can damage the trailing vines and flowers. Keeping the bunds clean also helps in reducing pest and disease pressure on the main crop. Hand-pulling larger weeds is recommended during later stages.

Pest and Disease Management

Horse gram is relatively hardy and suffers less from pests and diseases compared to other pulses like green gram or black gram. However, it can occasionally be affected by pests like leaf folders, pod borers, and aphids. Leaf folders fold the leaves and feed inside, while pod borers damage the developing seeds inside the pods. Fungal diseases like root rot, powdery mildew, and yellow mosaic virus can also occur under damp conditions. Proper spacing helps to maintain a dry microclimate under the canopy, reducing fungal growth.

To manage these issues, practice clean cultivation and destroy infected crop residues. Treat the seeds with Trichoderma before sowing. For sucking pests like aphids, spray neem oil at 3% concentration. If fungal diseases appear, apply copper oxychloride or other fungicides recommended by the local agricultural officer. Choosing certified, disease-resistant seeds from government agencies is the best preventive strategy against yellow mosaic virus and root rot. Farmers should check their fields daily for any signs of early leaf discoloration.

Harvesting and Threshing Methods

Horse gram matures in about 3 to 4 months (90 to 110 days after sowing) depending on the variety and region. The right time to harvest is when the leaves turn yellow and begin to drop, and the pods turn dry, brittle, and light brown. Harvesting should be done on clear, sunny days. Delaying the harvest can lead to pod shattering, where the dry pods burst open and seeds spill onto the ground, causing loss. Monitoring the pod drying rate daily is necessary to avoid this harvest loss.

The crop is harvested by cutting the plants close to the ground using sickles or by pulling them out manually. The harvested plants are gathered and spread out on a clean threshing floor to dry in the sun for 4 to 6 days. Once dried completely, threshing is done by beating the plants with sticks or by running a tractor or mechanical thresher over them. The grains are then separated from the chaff by winnowing, cleaned, and dried to a moisture content of 9% to 10% before storage. Cleaned stalks should be stored separately for cattle feed.

Processing and Value Addition

After threshing and cleaning, the horse gram grains must be graded based on size and color. Sorting out broken or damaged seeds, stones, and dirt is essential to get a good price in the market. Since horse gram has a hard seed coat, it requires longer cooking times. Value-added products like horse gram flour, sprouted horse gram powder, and ready-to-cook soup mixes are gaining popularity in urban health stores and can fetch higher returns for farmers. Processing at the farm level creates employment for rural youth.

For storage, the grains must be kept in moisture-proof containers or gunny bags lined with plastic to prevent pest attacks by pulse beetles. Mixing dry neem leaves with the stored grain is a traditional and effective way to ward off storage pests. Farmers can also process the crop residue (husk and dried foliage) into high-quality animal feed. This residue is highly nutritious and can be sold to dairy farmers or used for their own livestock. The residue from horse gram is known to increase milk yield in cows.

Traditional Culinary Processing

Processing horse gram at the household level before sale can yield higher returns. Traditionally, the pulse is cleaned and soaked overnight to soften its hard outer coat. The soaked seeds are then sprouted over 24 to 48 hours, which significantly increases their digestibility, vitamin C content, and iron bioavailability. Sprouted horse gram is dried and milled into health mixes or sold directly. For culinary purposes, the boiled seed water is collected to make the traditional Kollu Rasam in South India and Gahat Soup in Uttarakhand, which are highly popular home remedies for colds, fever, and kidney stones. Marketing these processed variants directly to urban buyers boosts income.

Market Demand and Indicative Returns

The market demand for horse gram is steady, driven by its traditional consumption in rural areas and its growing reputation as a health food in cities. It is low in fat, high in iron and calcium, and has a low glycemic index, making it suitable for diabetic diets. The crop also has a strong market in the feed industry, as it is a primary ingredient in horse and cattle feed formulations. Institutional buyers like food manufacturers are offering stable procurement options.

The cost of cultivation for horse gram is very low, ranging from Rs. 6,000 to Rs. 8,000 per acre, as it requires minimal tillage, fertilizers, and irrigation. The average yield is about 300 to 500 kg per acre under rainfed conditions. With an indicative market price of Rs. 50 to Rs. 80 per kg, a farmer can get gross returns of Rs. 15,000 to Rs. 40,000 per acre. This results in a net profit of Rs. 9,000 to Rs. 32,000 per acre. Note that these returns are indicative; market prices vary based on location, quality, and seasonal demand. Farmers should verify prices on official mandi portals and local cooperative centers before selling.

Frequently asked questions

What is horse gram called in local Indian languages?

Horse gram is known as Kulthi in Hindi, Kollu in Tamil, Ulava in Telugu, Hurule in Kannada, and Gahat in Pahari languages.

In which Indian states is horse gram majorly cultivated?

It is majorly cultivated in Karnataka, Tamil Nadu, Andhra Pradesh, Odisha, Chhattisgarh, Madhya Pradesh, Maharashtra, and Uttarakhand.

Is horse gram a Kharif or a Rabi crop?

It is grown as a late Kharif crop in North India (sown in July-August) and as a late Kharif or Rabi crop in South India (sown in September-November).

What makes horse gram suitable for dryland agriculture?

Its deep taproot system, low water requirement, and heat tolerance allow it to grow in areas with poor soils and low rainfall.

What is the recommended seed rate for horse gram per acre?

The recommended seed rate is 10 to 12 kg per acre for a pure crop, and 5 to 6 kg per acre when grown as an intercrop.

Does horse gram help in improving soil fertility?

Yes, being a legume, it fixes atmospheric nitrogen in the soil through its root nodules, enhancing soil health for the next crop cycle.

How long does it take for horse gram to mature?

Horse gram has a gestation period of 3 to 4 months, maturing in about 90 to 110 days depending on the variety and weather.

What is the average yield of horse gram per acre?

Under rainfed and marginal conditions, the average yield ranges from 300 to 500 kg per acre under good management.

Does horse gram require frequent weeding?

No, it only needs one hand weeding around 20 to 25 days after sowing. Later, its spreading canopy naturally suppresses weeds.

Can horse gram be grown as a mixed crop?

Yes, it is commonly grown as a mixed or intercrop with crops like finger millet, sorghum, maize, and pearl millet.

What are the key nutritional and health benefits of horse gram?

It is rich in protein, iron, calcium, and dietary fiber. It is traditionally used to help dissolve kidney stones and manage diabetes.

How is horse gram harvested?

The plants are cut close to the ground using sickles or pulled out manually when the leaves turn yellow and pods turn dry and brown.

What is the indicative cost of cultivating horse gram?

The cultivation cost is low, ranging from Rs. 6,000 to Rs. 8,000 per acre, making it highly suitable for resource-poor farmers.

Can horse gram tolerate waterlogged fields?

No, horse gram is highly sensitive to waterlogging. Standing water will cause root rot and destroy the crop quickly.

Where should I check for the latest schemes and subsidies on pulse crops?

Farmers should check the official state department of agriculture portal or visit their local Krishi Vigyan Kendra for the latest updates.