Vol. 10, Issue 7 (2021)

Author(s):
ML Jadav, DV Bhagat, OP Girothia, SK Choudhary and Narendra Kumawat

Abstract:
A study was carried out for two consecutive years (2018-19 and 2019-20) at All India Coordinated Research Project for Dryland Agriculture Indore of Madhya Pradesh. Four cropping systems viz. Soybean – Chickpea, Maize– Chickpea, Maize– Sweet corn (Green cob) and Soybean- Onion were sown for the trial. Rabi crops were irrigated through the water stored in farm pond (rainwater harvesting structure). The study reported that during 2018-19, Soybean and maize yield was 1630 kg/ha and 4333 kg/ha respectively whereas in 2019-20 it was 919 kg/ha and 652 kg/ha respectively. Productivity of Kharif crops in second year severely affected due to excess and continue rain fall during crop growth period. Annual rainfall for the years were 756.7mm and 1565.4mm respectively whereas normal annual rainfall is 984mm Water use efficiency of soybean and Maize were 2.62 kg/ha-mm and 7.87 kg/ha-mm respectively during kharif of year 2018-19, whereas next year, WUE of soybean and Maize were 0.64 kg/ha-mm and 0.45kg/ha-mm respectively. On the basis of pooled data of economics of different system, it is clear that Soybean – Onion found the more remunerative as it recorded total net returns Rs. 189161/- per hectare with B: C ratio 4.16 whereas, the lowest was recorded with Soybean – Chickpea (Rs. 64551/- with B: C ratio 2.8). Yield, WUE and economics of the crops clearly indicate that climate change severely affects the kharif crops but rainwater stored in farm pond can mitigate it in rabi crops.