All India Coordinated Research Project for Dryland Agriculture, Agricultural Research Station, Acharya N G Ranga Agricultural University, Ananthapuramu - 515001, Andhra Pradesh
*Email: b.sahadevareddy@angrau.ac.in
Online published on 27 October, 2023.
The low productivity of groundnut, pigeonpea and castor is mainly due to its cultivation in rainfed production system associated with prolonged dryspells during critical stages of crop growth period. A field experiment was conducted during kharif of 2015 to 2021 in rainfed alfisols with different in-situ and ex-situ moisture conservation techniques for groundnut, pigeonpea and castor at AICRPDA, Ananthapuramu, ANGRAU, Andhra Pradesh. In castor and pigeonpea, integration of in-situ conservation furrows and mulching recorded higher seed yield compared to rainfed crop without moisture conservation. In pigeonpea, the mean data of three years indicated that, conservation furrows in each row followed by sub soiling at one meter distance and shell mulching gave higher seed yield compared to rainfed crop without moisture conservation. In castor, mean data of three years indicated that sub soiling at one meter distance followed by conservation furrows in each row and shell mulching gave higher seed yield of 892 kg ha−1 compared to rainfed crop without moisture conservation (690 kg ha−1). Among groundnut varieties, mean data of different years indicated that conservation furrows with supplemental irrigation recorded higher pod yield with Visista (1880 kg ha−1) followed by Kadiri Lepakshi (1620 kg ha−1), Harithandra (1409 kg ha−1), Dharani (1406 kg ha−1), K6 (1384 kg ha−1) Amaravathi (1202 kg ha−1) and K9 (1198 kg ha−1) compared to only conservation furrows.
Conservation furrows, Integrated rainwater management, Mulching, Sub soiling, Supplemental irrigation
