Growth Analysis and Response Studies in Cowpea [Vigna unguiculata (l.) Walp] under the Influence of PROM and Phosphatic Inoculants
Bhavna Singh Rathore, S. S. Yadav, Disha Joshi, Biram Singh Gurjar, Ram Singh Verma
International Journal of Plant & Soil Science · pp. 642–647 · Published 5 Dec 2023
10.9734/ijpss/2023/v35i224173Abstract
A field experiment was carried out at Agronomy farm, S.K.N. College of Agriculture, Jobner (Rajasthan) during kharif, 2020 on loamy sand soil which consisted four levels of PROM (control, PROM equivalent to 20 kg, 40 kg and 60 kg P2O5/ha) and four phosphatic inoculants (control, PSB, VAM and PSB + VAM). The total 16 treatment combinations were tested in factorial randomized block design with three replications. Results revealed that application of PROM equivalent to 40 kg P2O5/ha significantly enhanced the dry matter accumulation at 25 DAS, CGR during 0 - 25 DAS and leaf area index over preceding levels. However, in terms of dry matter accumulation at 50 DAS and at harvest, CGR during 25 - 50 DAS and 50 DAS – at harvest, PROM equivalent to 60 kg P2O5/ha proved significantly better over lower levels. Based on response studies, application of PROM equivalent to 56.15 kg P2O5/ha corresponding with seed yield of 1084.6 kg/ha was worked out to be the optimum dose of PROM for cowpea.
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