Yield Attributes and Yield of Maize as Influenced by Different Paddy Straw Management Options and Nitrogen Levels in Rice-maize Cropping Systems

Abstract

A field experiment was conducted during 2021-22 and 2022-23 at Regional Agricultural Research Station, Arepally, Warangal district. It is situated in the Central Telangana Zone. A total of 18 treatments replicated thrice in factorial RBD design. The study is conducted to know the yield attributes and yield of maize as influenced by different paddy straw management options and Nitrogen levels in rice-maize cropping systems. The results of the experiment concluded that highest grain yield, straw yield, cob length (cm), cob girth (cm), number of cobs per plant, number of rows per kernal, 100 seed weight (gms) was obtained in incorporation and least was obtained in cutting and removal. With the different nitrogen levels highest was obtained in T6 130% RDN (20% at basal, 42% 15 days after sowing, 42% knee high stage (30 DAS) and 26 % tasselling stage (60 DAS) and the least was obtained in T1 100 % RDN (33.3 % at basal, 33.3% knee high stage (30 DAS) and 33.3% tasselling stage (60 DAS). There is no significant effect of crop residue management and N levels on yield attributes of maize and there is no significant interaction between the two factors.