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Nitrogen dose and placement in conservation agriculture for augmenting crop growth, productivity and profitability of Indian mustard (Brassica juncea)

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Title Nitrogen dose and placement in conservation agriculture for augmenting crop growth, productivity and profitability of Indian mustard (Brassica juncea)
 
Creator Padhan, S.R.
Jat, S.L.
Singh, A.K.
Parihar, C.M.
Pooniya, V.
Kumar, S.
Meena, M.C.
Radheshyam
Kumar, A.
Darjee, S.
 
Subject Conservation agriculture
Crop growth rate
Maize-mustard-mungbean system
Production efficiency
Sub-surface band placement
 
Description Not Available
Optimization of nitrogen (N) fertilization is vital for minimizing losses and realizing the yield potential of Indian mustard [Brassica juncea (L.) Czern.] under different tillage and residue management options. Hence, a field experiment was conducted during winter (rabi) seasons of 2021–22 and 2022–23 at research farm of ICAR-Indian Agricultural Research Institute, New Delhi to study the effect of nitrogen placement methods under conservation agriculture (CA) for augmenting crop growth, productivity and profitability of Indian mustard. Experiment consisted a split-plot design with three crop establishment practices (CEP) [ZT R, Zero tillage without residue retention; ZT+R, Zero tillage with residue; CT, Conventional tillage] in main-plots and nitrogen placement methods (NPM) [control (no N); recommended dose of N (RDN)-conventional; RDN SSB (subsurface band placement of second N split along the crop rows); 80% RDN-SSB] in sub-plots. The ZT+R enhanced crop growth rate by 6.0–36.1% over CT at various crop stages. The ZT+R reported higher soil moisture by 9–20.7% over CT and ZT R. Significantly superior seed yield (14.3–28.5%), net return (20.5–53.9%) and benefit cost ratio (21.8–79.0%) was obtained with ZT+R over ZT R and CT while RDN SSB recorded 7.3–9.1% higher seed yield over other treatments. Statistically at par results were obtained under RDN-conventional and 80% RDN SSB for yield attributing characters and seed yield delineating that a saving of 20% N in mustard production is possible without compromising yield and this can reduce environmental footprint as well. Therefore, this study concluded that the residue retention under ZT along with subsurface N placement in mustard crop gives better vegetative growth, yield attributes and yield with a potential to save 20% N and can be opted in semi-arid Indo-Gangetic plains and similar agro-ecologies.
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Date 2024-04-08T18:39:18Z
2024-04-08T18:39:18Z
2023-12-31
 
Type Research Paper
 
Identifier Padhan, S.R., Jat, S.L.*, Singh, A.K., Parihar, C.M., Pooniya, V., Kumar, S., Meena, M.C., Radheshyam, Kumar, A. and Darjee, S. (2023). Nitrogen dose and placement in conservation agriculture for augmenting crop growth, productivity and profitability of Indian mustard (Brassica juncea). Indian Journal of Agricultural Sciences 93(12): 1326-1332.
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http://krishi.icar.gov.in/jspui/handle/123456789/81974
 
Language English
 
Relation Not Available;
 
Publisher Indian Council of Agricultural Reserach