Effect of Climate Smart Nitrogen and Water Management Approaches on Growth and Yield of Sweet Corn
Nishith Das *
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
Lalita Mohan Garnayak
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
A. K. Patra
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
R. K. Paikaray
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
B. S. Rath
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
S. N. Jena
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
S. Biswal
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
K. N. Mishra
Department of Soil Science and Agricultural Chemistry, CA, OUAT, Bhubaneswar, India.
R. K. Panda
Department of Plant Physiology, CA, OUAT, Bhubaneswar, India.
Shubham Chhatria
Department of Agricultural Meteorology, CA, OUAT, Bhubaneswar, India.
Sabyasachi Sahoo
Department of Agronomy, College of Agriculture, OUAT, Bhubaneswar-751003, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was carried out for two consecutive years during 2020-21 and 2021-22 in the research farm of OUAT, Bhubaneswar. The experiment was conducted in a strip plot design having four each of climate smart water and nutrient management approaches replicated four times. All the growth attributes like plant height, LAI, dry matter production as well as the yield attributing characters were superior under EFI with mulch and INM treatments in water and nitrogen management approaches, respectively. Optimal irrigation practice i.e. each furrow irrigation (EFI) with mulch in sweet corn resulted in higher cob yield (27.64 t/ha) followed by EFI alone. Similarly, INM practices comprising of 75% STBNR + 25% N through FYM produced higher cob yield (30.91 t/ha) as compared to other N-management options and was closely followed by STBNR.
Keywords: EFI, AFI, BBF, RTNM, STBNR, INM, LAI