Response of green gram (Vigna radiata L.) to various agro-chemicals for moisture stress mitigation under rainfed conditions
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Date
2022-08
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CCSHAU Hisar
Abstract
The present investigation entitled “Response of green gram (Vigna radiata L.) to various agrochemicals
for moisture stress mitigation under rainfed conditions” was carried out at Regional
Research Station, Bawal, Rewari of CCS Haryana Agricultural University, Hisar (Haryana) during
Kharif 2021. The objectives of the investigation were to study the effect of different agrochemicals on
growth and yield; and to work out water use efficiency of mungbean under different treatments. The
experiment was carried out in randomized block design (RBD)consisting of ten treatments of
agrochemicals and with three replications. The treatments were control (T1), soil application of gondkatira
@ 2.5 kg ha-1 (T2), soil application of gond-katira @ 5.0 kg ha-1 (T3), foliar spray of salicylic
acid (SA) @ 100 ppm at flowering and pod initiation (T4), foliar spray of SA @ 200 ppm at flowering
and pod initiation (T5), soil application of gond-katira @ 2.5 kg ha-1 + foliar spray of SA @ 200 ppm at
flowering and pod initiation (T6), soil application of gond-katira @ 5.0 kg ha-1 + foliar spray of SA @
200 ppm at flowering and pod initiation (T7), foliar spray of KNO3 @ 1 % at flowering and pod
initiation (T8), soil application of gond-katira @ 2.5 kg ha-1 + foliar spray of KNO3 @ 1 % at flowering
and pod initiation (T9) and; soil application of gond-katira @ 5.0 kg ha-1 + foliar spray of KNO3 @ 1 %
at flowering and pod initiation (T10).
Overall, the results of the one year experimentrevealed that among different agrochemical
treatments, foliar spray of KNO3 @ 1 % alone (T8) or in combination with gond-katira @ 2.5 (T9) and
5.0 kg ha-1(T10) significantly improved growth, physiological, phenological and quality parameters;
yield attributes, yield, economics; and water use of crop over control. Among different treatments, T10
(soil application of gond-katira @ 5.0 kg ha-1 + foliar spray of KNO3 @ 1 % at flowering and pod
initiation) was found most productive and economicalwith 26.1 and 69.4% more seed yield and net
returns over control, respectively. Highest water use efficiency of 3.3 kg ha-1 mm-1 was achieved with
combination of gond-katira @ 5.0 kg ha-1 and foliar spray of KNO3 @ 1 % at flowering and pod
initiation.