On Increasing Mustard Productivity with an Inexpensive Source of Leaf—applied Phosphorus |
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Authors: | Firoz Mohammad |
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Affiliation: | Department of Botany, Aligarh Muslim University, Aligarh-202 002, India. |
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Abstract: | A simple randomized field experiment was conducted for two years to test the comparative efficacy of three sources of leaf-applied phosphorus (sodium dihydrogen orthophosphate, diammonium phosphate and monocalcium superphosphate) on the yield performance of mustard ( Brassica juncea L. Czern. and Coss.) var. Varuna. The quantity of P was 3.5 kg ha−1. In addition, 20 kg N and 2 (or 6) kg S ha−1 were included in the spray applied in two equal splits at 70 and 90 days as supplement to the basal application of 60 kg N, 17.5 kg P and 33.2 kg K ha−1. The two-year data revealed that spray treatments were significantly efficacious in augmenting most of the yield attributing parameters as well as seed and oil yield by about 20% over the water-sprayed control. However, as the three sources of phosphorus proved equally effective, commercial grade monocalcium superphosphate could be preferred over others due to its cost effectiveness and easy availability. |
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Keywords: | Mustard foliar application of NPS spray P sources |
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