Foliar Spray of NPK and Gibberellic Acid on Growth and Yield of Chickpea Based Intercropping System
Kuldeep Kumar
Department of Agronomy, Birsa Agricultural University, Ranchi, 834006, Jharkhand, India.
S. Karmakar
Department of Agronomy, Birsa Agricultural University, Ranchi, 834006, Jharkhand, India.
Arvind Kumar Singh
Department of Agronomy, Birsa Agricultural University, Ranchi, 834006, Jharkhand, India.
Ashok Kumar Singh
Department of Agronomy, Birsa Agricultural University, Ranchi, 834006, Jharkhand, India.
Rakesh Kumar
Department of Soil Science and Agricultural Chemistry, Birsa Agricultural University, Ranchi, 834006, Jharkhand, India.
Piyush Kumar Bhargaw *
Department of Agronomy, Birsa Agricultural University, Ranchi, 834006, Jharkhand, India.
*Author to whom correspondence should be addressed.
Abstract
A field experiment was carried out during rabi seasons of 2019-20 and 2020-21 at Birsa Agricultural University, Ranchi, Jharkhand. The experiment was laid out in split-plot design with 3 replications. The treatments were comprised of 9 main plots, viz., sole chickpea, sole wheat, sole linseed, sole safflower, sole mustard, chickpea + wheat (6:3), chickpea + linseed (6:2), chickpea + safflower (6:2), chickpea + mustard (6:2) and 3 sub-plots viz., water(control), foliar spray of 1% NPK (19:19:19) and GA3 (100 ppm). Results revealed that maximum values of growth parameter (like plant height, dry matter accumulation), yield attributes (like number of pods, capsules, capitula, siliqua/plant and spikes/m2, 100-seed weight in chickpea and 1000-seed weight), grain and straw yield as well as harvest index were recorded under chickpea+ mustard (6:2). With regards to different foliar spray treatments, the maximum values for the above-mentioned parameters were found to be higher under the foliar spray of GA3 (100 ppm) at 45 days after sowing during both the years of experimentation.
Keywords: Chickpea, foliar spray, intercropping, linseed, safflower, wheat, yield