Author/Authors :
Arif, Muhammad University of Agriculture - Department of Agronomy, Pakistan , Shah, Tariq University of Agriculture - Department of Agronomy, Pakistan , Ilyas, Muhammad University of Agriculture - Department of Agronomy, Pakistan , Ahmad, Wisal University of Agriculture - Department of Agronomy, Pakistan , Mian, Afaq Ahmad University of Agriculture - Institute of Biotechnology and Genetic Engineering, Pakistan , Jadoon, Mushtaq Ahmad University of Agriculture - Department of Rural Sociology, Pakistan , Adnan, Muhammad University of Swabi - Department of Agriculture, Pakistan
Abstract :
Organic manures are known to be the most important soil amendments for improving soil fertility and crop productivity by releasing different essential nutrients and improving the soil properties. The present experiment was conducted to study the effectiveness of different types of organic manures alone or their combination in equal proportion and their levels on weeds density and maiz1e yield. Two types of manures (sheep manure and farmyard manure-FYM) and their combination in equal proportion were used at three different levels (4, 6 and 8 tons ha^-1). The results indicated that higher weed density (39 m^-2), weed fresh biomass (261.59 g m^-2) and weed dry biomass (102.33 g m^-2) were recorded in plots treated with FYM, whereas sheep manure alone proved superior in terms of grain yield (2400 kg ha^-1). Among different levels of manures, 8 tons ha-1 of manure produced higher number of weeds (37.67 m^-2), greater weed fresh (263.01 g m^-2) and dry (97.44 g m^-2) biomass, and higher grain yield (2438 kg ha^-1). It is concluded that sheep manure applied at the rate of 8 tons ha-1 resulted in higher yield of maize and lower weeds number and biomass.
Keywords :
farmyard manure , maize , sheep manure , weeds , yield
