Studies on phenology, oil and protein yield along with carbon sequestration of oilseed brassicas under irrigated conditions.

Abstract

Due to population increase, the oil requirements have gone up in India and to meet the domestic requirements each year we are importing 8.43 million tones edible oil from other countries paying huge foreign exchange to the tune of Rs. 46,242 crores. The average productivity of the crops is only 750 kg ha-1 in eastern Uttar Pradesh compared to national average of 1145 kg ha-1 and global average of 1950 kg ha-1. The highest productivity of the crop is however recorded by UK (3,322 kg ha-1). In the main plots six combinations of N, P, K and S (F1 - N40 P20K20S0 , F2 - N40 P20K20S40, F3 - N80 P40K40S0 , F4 - N80 P40K40S40, F5 - N120 P60K60S0 and F6 - N120 P60K60S40) were taken and in sub plots four brassica species (B. Juncea var Pusa Jaikissan, B. napus var Hyola-401, B. Carinata var Kiran Rai and B. campestris var YST-151) were grown. Among various brassica species, Kiran Rai (Brassica carinata) produced a seed yield of 18.90 q ha-1 with the treatment N120 P60K60S40 and at the same nutrient levels Pusa Jaikissan (Brassica juncea) produced a seed yield of 16.56 q ha-1 after harvest of kharif rice.