Pollution Research Paper

EFFECT OF INTERCROPPING AND NITROGEN MANAGEMENT ON GROWTH AND PHENOLOGY OF PIGEONPEA, SWEET CORN AND BABY CORN USING NANO UREA

PEEYUSH KUMAR JAYSAWAL, S. KARMAKAR, C.S. SINGH, ARVIND KUMAR SINGH, A.K. SINGH AND B.K. AGRAWAL

Abstract

A field experiment was carried out during kharif 2021 and 2022 at Birsa Agricultural University Ranchi, to evaluate the phenological character of sweet corn and baby corn and plant growth of pigeon pea, sweet corn and baby corn as influenced by pigeon pea based intercropping system and nitrogen management. Plant height (cm), dry matter accumulation, numbers of nodules per plat and nodules weight (g/plant),days to 50% tasseling, days to 50 % silking, tasseling- silking interval, day to 1st picking, number of pickings and yield (kg/ha). Among the different intercropping systems and nitrogen management, mean data of 2021 and 2022 of plant growth, phenology and yield of sole pigeonpea, sole sweet corn and sole baby corn was noted higher over intercropping system. Among intercropping system maximum plant height (234.6, 166.1 cm) and dry matter accumulation (684.1, 1349.1 g/m2)at harvest of pigeonpea and sweet corn and number of nodules per plant (25.9, 30.7), nodules weight (0.182 and 0.222 g/plant) at 30 and 60 DASof pigeon pea was found under pigeon pea + sweet corn intercropping over pigeonpea + baby corn intercropping system. Regarding nitrogen management 100 % RDN recorded maximum plant height (257.4, 192.8 cm) and dry matter accumulation (777.4, 1667.8 g/m2) at harvest of pigeon pea and sweet corn and number of nodules per plant (28.3, 33.7), nodules weight (0.201 and 0.244 g/plant) at 30 and 60 DAS of pigeon pea. Whereas number of pickings was found equal (1.0) under all treatments of sweet corn and maximum under sole baby corn as well as in intercropping (3.0) with 100 % RDN. The lowest value of phonological parameters for sole sweet corn and baby corn with 100% RDN recorded lowest value over intercropping systems respectively. The maximum grain yield of pigeonpea (1486 kg/ha), cob yield of sweet corn (15310 kg/ha) and baby corn (8932 kg/ha) was found under sole condition. With respect to intercropping system maximum grain yield of pigeon pea was found (1361 kg/ha) under pigeonpea + sweet corn intercropping system over pigeonpea + baby corn (1292 kg/ha).