EFFECT OF SPRAYING SOME MANURES EXTRACTS IN GROWTH AND YIELD OF TOMATO

Abstract

The experiment was carried out at the vegetable field of the College of Agriculture, Univ. of Baghdad in the seasons of 2012 and 2013 to examine the effect of four types of manure )bovine, poultry, sheep, and corn cobs( with two concentrations, %50 and %100 (from stock solution of 1 kg: 10 L) dissolved in two types of water, hot and cold . On the growth and yield of tomato Lycopersicon esculentum Mill cv. Jenan. The experiment was conducted according to the randomized complete block design with three replications. Fifth leaf dry weight along with leaf content of nitrogen, phosphorus, and potassium were recorded at three growth stages : vegetative growth, fruit set, and at the third harvest. Results showed that all aqueous manure applied significantly improved vegetative growth traits along with improving leaf and fruit nutrient content and eventually yield when compared with control (water only). Best results were obtained when using hot water with %50 sheep manure and %50 poultry manure where C9 significantly increased fruit content of the three elements under investigation along with increasing fruit number and weight and total yield which scored : 111.77 and 114.33 T.ha-1 for season 1 and 2, respectively. In addition, C5 significantly increased fruit vitamin C, fruit hardness, total soluble solids (TSS), and gave the highest potassium content in fruits.