Browsing by Author "Hussain, M. M."

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Impact of NPK fertilizers on mustard ( Brassica Juncea coas ) 1- Growth parameters
(Nuclear Science and Applications, 1984) Elahi, S. F.; Ahmed, A. H. M.; Mandal, R.; Hussain, M. M.
Growth component of mustard plant ( Brassica juncea coss ) have been studied from a NPK field experiment. Addition of nitrogen significantly increased the height, number of branches and pod per plant. Phosphorus also had a similar positive effect but to a smaller extent. Potassium had, in contrast, decidedly negative effect for all the parameters studied. Correlation study revealed that formation of pod was directly influenced by the number of branch which was again dependent on the height of the plant. Maturation of the mustard seed was delayed by nitrogen while enhanced by phosphorus and potassium application.
Impact of NPK fertilizers on mustard ( Brassica Juncea coas ) II. Yield components
(Nuclear Science and Applications, 1984) Ahmed, A. H. M.; Elahi, S. F.; Mandal, R.; Hussain, M. M.
Accumulation of dry matter and yield of mustard seeds have been observed from a NPK field trial experiment. Addition of nitrogen significantly increased the production of dry matter at 35 days of growth. Higher the rate of nitrogen supplied, higher was the dry matter yield. No such marked effect due to phosphorus addition was recorded, Accumulation of dry matter at harvest was significatly increased mostly by either N or P alone or by their combination. In constrast, potassium in both th« stages of growth decreased the yield of dry matter. Nitrogen and phosphorus application stimulated yield of mustard seeds almost double. Potassium supply, on the contrary, reduced the yield remarkably.
Impact of NPK fertilizers on mustard ( brassica juncea coss )iii. Oil and nutrient content of seeds
(Nuclear science and applications, 1984) Elahi, S. F.; Mandal, R.; Ahmed, A. H. M.; Hussain, M. M.
A field experiment following a pirtie.lly c D n t o u n d e d design w j s conducted to study the effect of NPK fertilizers on the oil and N, P, K, Ca and Mg contents of mustard seeds. Fertilizers showed an increase in oil content in most of the treatments, though not significantly. Increasing amount of eithar nitrogen or phosphorus decreased per cent oil content in seeds. However, both the nutrients together with potassium increased the same remarkbly. Concentration of N, P, K. Ca and Mg in seeds was not greatly influenced by fertilizer treatments. Effective oil yield was maximum in the plot receiving each of NPK at 131.4 kg/ha. However, from the economic point of view, the treatment of 134 4, 33 6 kg/ha of N and P, respectively, was considered to be the best.