Crop diversification for livelihood security and resilience to climate variability
Climate vulnerability: Drought/heat wave, frost/cold wave and floods
Existing practice
In scarce rainfall zones of India, practice of sole cropping is predominant but is risky and often results in low yields or sometimes even in crop failure due to erratic monsoon rainfall and skewed distribution. In such areas intercropping is a feasible option to minimize risk in crop production, ensure reasonable returns at least from the intercrop and also improve soil fertility with a legume intercrop. Cotton, soybean, pigeonpea and millets are the major crops in the scarce rainfall zones. Intercropping of these crops is more profitable and is a key drought coping strategy.
Resilient practice/ technology
Pigeonpea, cotton, sunflower and sorghum are the main crops cultivated in NICRA village in Kurnool district, Andhra Pradesh which are affected due to late onset of monsoon followed by dry spell at critical crop growth stages. Intercropping of Setaria (foxtail millet, SIA-3085 variety) with pigeonpea (5:1 ratio) sown in July showed that the intercropping system was more profitable with highest benefit cost ratio in all the 3 years despite prolonged dry spell of up to 25 days in 2012.
Impact of crop diversification
Farmers in Yagantepalli village, Kurnool district took up sole and intercrops of Setaria and pigeonpea for 3 years in this predominantly rainfed village (70%). Performance of the intercropping system of Setaria + pigeonpea (5:1) gave the highest benefit cost ratio ranging from 1.7 to 3.1 compared to the sole crops of Setaria and pigeonpea (1.5 to 2.6).
District/State | Treatment | Grain yield (Kg/ha) | Cost of cultivation (Rs/ha) | Gross income (Rs/ha) | Net income (Rs/ha) | BC ratio |
---|---|---|---|---|---|---|
Kurnool, Andhra Pradesh | Sole Setaria | 1562 | 15973 | 23430 | 7457 | 1.5 | Kurnool, Andhra Pradesh | Sole pigeonpea | 785 | 20500 | 29830 | 9330 | 1.5 |
Kurnool, Andhra Pradesh | Setaria + pigeonpea (5:1) | 1731 | 22856 | 33900 | 11044 | 1.7 |
Intercropping of redgram+ foxtailmillet