EFFECTS OF CHEMICAL FERTILIZERS, MANURES AND LIME ON THE YIELD OF SUMMER TOMATO IN OLD PIEDMONT PLAIN SOIL

Abstract

An experiment was conducted at the experimental field of Soil Science, Hajee Mohammad Danesh Science and Technology University, Dinajpur during March to June, 2011 to evaluate the effect of manures, fertilizers and lime application on summer tomato. The experiment comprised five treatments- T, (cowdung), T (chemical fertilizer), T; (lime), T, (poultry manure) and Ts (control). Application of chemical fertilizer @ 550 kg N/ha, 450 kg P /ha and 250kg K/ha produced the highest yield (35.9 t/ha) of tomato. Between the manures used, the highest yield highest yield (23.35 t/ha) was obtained with the application of 1t /ha poultry manure. Nutrient content in the plant varied remarkably with different treatments. The NPK content of the plant was the maximum with application of chemical fertilizer and the Ca content went to the peak due to the cowdung treatment. Soil analysis result indicates that the NPK content was the maximum when soil was treated with chemical fertilizer.