Premium
On Increasing Mustard Productivity with an Inexpensive Source of Leaf—applied Phosphorus
Author(s) -
Mohammad Firoz
Publication year - 1994
Publication title -
journal of agronomy and crop science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.095
H-Index - 74
eISSN - 1439-037X
pISSN - 0931-2250
DOI - 10.1111/j.1439-037x.1994.tb00583.x
Subject(s) - diammonium phosphate , phosphorus , brassica , yield (engineering) , agronomy , monocalcium phosphate , chemistry , field experiment , mathematics , horticulture , biology , materials science , fertilizer , fish meal , organic chemistry , fishery , fish <actinopterygii> , metallurgy
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.