Why Are Farmers Growing Two Crops Together? Can Intercropping Reduce Farm Risk?

A field does not always have to carry just one crop. Farmers can grow two or more crops together when their growth patterns, nutrient needs and maturity periods complement each other. This practice, known as intercropping, can help farmers use available land and resources differently.

The idea is not simply to put two crops in the same field. Farmers need to select compatible crops and decide their row arrangement, plant population and sowing time. Poor combinations can increase competition for water, nutrients and sunlight.

What is intercropping?

Intercropping means growing two or more crops together in the same field during the same growing season. The crops may be planted in alternate rows, strips or other planned arrangements.

The system differs from growing one crop across the entire field. Each crop has its own growth pattern, but the farmer manages them as part of one production system.

Common examples include cereal and pulse combinations. Maize may be grown with a pulse crop such as soybean, cowpea or pigeon pea in suitable conditions.

The exact combination depends on the region, soil, rainfall, crop duration and local recommendations. A combination that works well in one area may not perform similarly elsewhere.

One reason is risk management. If one crop performs poorly because of weather or market conditions, the second crop may still provide some harvest. Intercropping can also make use of resources at different times. A taller crop may occupy the upper part of the canopy while a shorter crop uses space closer to the ground.

Some crop combinations also differ in their root systems. This can allow plants to explore different parts of the soil, although competition can still occur when water or nutrients are limited.

Farmers should therefore look at the complete crop combination rather than assuming that more crops automatically mean better returns.

Can pulses work with cereals?

Cereal-pulse combinations are widely studied because the crops can have different growth characteristics. Cereals such as maize require substantial nutrients, while pulse crops such as soybean and pigeon pea have different nutrient relationships.

Legume crops can form associations with soil bacteria that help fix atmospheric nitrogen. This does not mean that a pulse crop can supply all the nitrogen required by a neighbouring cereal.

Farmers still need to manage nutrients according to soil conditions and crop requirements. Fertiliser recommendations should be based on local agricultural guidance rather than assuming that intercropping eliminates fertiliser needs.

The right crop combination can improve land use, but the benefit depends on how the crops are arranged and managed.

Intercropping can change how crops use available water because different plants may have different root systems and water requirements. A suitable combination may use soil moisture at different depths or during different periods of the season. But when rainfall is low, two crops can also compete for the same limited water.

This is why farmers should consider the water requirement of both crops before choosing a combination. A high-water-demand crop combined with another water-demanding crop may increase pressure on the field.

Rainfall pattern matters too. A combination suitable for a well-irrigated field may not be appropriate under rainfed conditions.

What about nutrients?

Every crop removes nutrients from the soil. Growing two crops together does not change that basic requirement.

The advantage of certain combinations may come from differences in nutrient demand and root behaviour. Legumes can also contribute to nitrogen cycling through biological nitrogen fixation.

Farmers still need to consider soil fertility. A soil test can help identify nutrient deficiencies before selecting crops and deciding on fertiliser application.

Farmers should also avoid applying fertiliser based only on the needs of the main crop. The second crop has its own requirements and can affect the overall nutrient balance of the field.

Growing different crops together can sometimes make it harder for certain pests to locate or spread across their preferred host crop. Research has examined this effect in several intercropping systems. But intercropping should not be treated as a guaranteed pest-control method. Some combinations can also create favourable conditions for pests or make crop protection more difficult.

Farmers need to monitor both crops regularly. If a pest appears, they should identify it before deciding on a control measure.

Integrated Pest Management can be used alongside intercropping. Field monitoring remains important because the crop combination does not remove the need for pest management.

Does intercropping always increase income?

No. Growing two crops does not automatically mean earning more money. The second crop requires seed, labour and management, and these costs need to be included.

Farmers should compare the combined output and cost with the results from growing the main crop alone. Market prices also matter because the second crop may have lower value during harvest.

The timing of harvest can also affect labour requirements. If both crops need harvesting at the same time, labour pressure may increase.

A successful intercropping system should therefore be assessed using actual farm economics, not only total production.

Farmers should begin with local conditions. The first questions should be about soil, rainfall, irrigation, crop duration and available labour. The two crops should ideally have growth patterns that reduce direct competition. Farmers can also consider differences in plant height, root depth and maturity period.

Local agricultural universities and Krishi Vigyan Kendras can provide crop-specific recommendations. Farmers should check whether a particular combination has been tested under similar soil and weather conditions.

Starting on a small area can also reduce risk. Farmers can compare the intercrop with their normal crop before expanding the practice across the entire farm.

Does row arrangement matter?

Yes. Planting arrangement can influence how much sunlight, water and nutrients each crop receives.

Farmers may use alternate rows, paired rows or other arrangements depending on the crops involved. The recommended spacing should come from research or local agricultural guidance.

Plant population also matters. If farmers maintain the same population of both crops that they would use in separate fields, competition can become too high.

The aim is to create a combination where both crops have enough space to grow while allowing the farmer to maintain practical field operations.

Small farmers should first calculate whether the second crop adds enough value to justify its extra seed, labour and management costs. They should also check whether the crop has a reliable local market. Producing a crop without knowing where it will be sold can create problems after harvest.

Water availability is another important factor. Farmers in rainfed areas should select combinations suited to their expected rainfall rather than adding a second crop that needs frequent irrigation.

Finally, farmers should check harvesting requirements. A combination that looks good during crop growth may become difficult if the two crops cannot be harvested efficiently. Intercropping is not simply a method of putting more plants into one field. It is a way of designing the field so that different crops can share available resources.

For some farmers, a well-planned combination can spread production risk, make better use of land and provide another source of income. For others, competition for water, nutrients or labour may make the system unsuitable.