نتایج جستجو برای: np fertilizers
تعداد نتایج: 54186 فیلتر نتایج به سال:
In order to evaluate the effect of sugarcane (Sacharum officinarum L.) filter muds and chemical and biological fertilizers application on macro- and micronutrient elements and some heavy metals (Pb and Cd) absorption by canola (Brassica napus L.) grains, a factorial experiment was conducted in 2012 in the Experimental Farm of Ramin (Mollasani) Agriculture and Natural Resources University of Kho...
It is very difficult to meet the demands of increasing population with such fewer resources. Loss soil fertility, pests, and lack nutrients has resulted in a decrease agricultural production. This increased importance fertilizers agriculture. Since chemical adversely affect biofertilizers were brought into use. These are substances that contain living or latent cells, even micro-organisms. They...
There have been several recent developments in slow-release fertilizers. These materials supply nutrients continuously over an extended period in contrast to water soluble fertilizers which are immediately available after incorporation in moist soil. Slow-release fertilizers are not subject to rapid leaching loss and do not easily burn plants from over-application. The major need for slow relea...
One of the greatest advances in agriculture (and thus in human civilization) occurred in the middle of the 20 century, when strains of crop plants were developed that allowed considerably greater yields, at the expense of high inputs of nitrogenous fertilizer. The resulting increase in the use of nitrogenous fertilizers came at a great cost, however. As much as 1% of the total global energy bud...
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