STUDIES ON THE EFFECT OF PHOSPHORUS FERTILIZER PLACEMENT METHODS ON THE GROWTH AND YIELD OF WHEAT (BARI Gom 28)

Abstract

An experiment was conducted in the Soil Science research field of Hajee Mohammad Danesh Science and Technology University, Dinajpur during the period of December 2016 to April 2017 in order to evaluate the effect of phosphorus fertilizer placement methods on the growth and yield of wheat. The experiment was laid out in a Randomized Complete Block Design (RCBD) with five treatments and four replications. The experiment comprised of five different methods of phosphorus fertilizer application viz. T1 {Broadcast (Treated as control)}, T2 (In between two rows), T3 (5 cm. apart from rows), T4 (Below seed in rows) and T5 (Mixed with seed). The statistical analysis of phosphorus placement methods exhibited significant differences to the plant height, number of tillers m-2 , spike length, number of spikelet spike-1, number of grain spike-1, grain yield, straw yield, biological yield except 1000 grain weight. The results revealed that the treatment (T5) where phosphorus fertilizer mixed with seed in rows produced taller plants (95.97cm), more tillers m-2 (349.9), lengthy spikes (9.25 cm), more spikelet spike -1 (21.90), more grains spike-1 (49.78), higher 1000 grain weight (59.05g), satisfactory grain yield (4.86 t ha-1), higher straw yield (5 t ha-1) and biological yield (9.86 t ha-1). The unit increase in grain yield was positively correlated with the increased values of crop parameters by extending the values of plant. The findings of the study showed that the performance of the treatment T5 (Mixed with seed) was the best among the other treatments. Therefore, the overall results indicate that the placement method of phosphorus fertilizer mixed with seed can be more effective and economic for wheat production.