Agroecosystem nitrogen (N) loss produces greenhouse gases, induces eutrophication, and is costly for farmers; therefore, conservation agricultural management practices aimed at reducing N loss are increasingly adopted. However, the ecosystem consequences of these practices have not been well-studied. We quantified N loss via leaching, NH3 volatilization, N2O emissions, and N retention in plant ...

Forest fertilization with granular urea is a well-established management practice in many forested regions of the world. We hypothesize that chemical forest fertilizers may be affecting forest-dwelling wildlife. In the laboratory, we studied the effects of fertilization doses of granular urea on three species of forest-dwelling amphibians (Plethodon vehiculum, Rhyacotriton variegatus, and Taric...

In order to study the effect of chemical and biological fertilizers on silage corn under different plant densities, a split plot experiment was carried out in a randomized completely block design with three replicates in south western Iran. The main plot included nitrogen fertilizer treatment at three levels (N1: with out chemical and organic fertilizers, N2: 75% chemical fertilizer + 100% orga...

Sweet sorghum is tolerant to high temperature and drought and can be considered as an alternative crop to sugar beet and maize in Iran. In this study, the effects of nitrogen and potassium fertilizers on growth parameters including stem height, stem diameter, stem fresh weight, total fresh weight; carbohydrate contents including total sugar, brix value, sucrose content and purify; and juice ext...

A report of accidental poisoning of goats and cattle with the fertilizer, urea (46% Nitrogen) is made. All the fifteen goats IlJ1d five cattle involved in the intoxication eventually died. The clinical symptoms and pathological lesions were similar in both goats and cattle. There was a significant elevation of the blood urea nitrogen values in both cattle and goats; average for cattle being 39m...

The objective of this work was to study the effect of sewage sludge compost on ammonia and nitrate accumulation in the olive-grove soil. This study has been conducted since 1998. To evaluate sewage sludge compost on soil-grove four treatments were set up in a clay loam soil in Seseña (Toledo, Spain). Every experiment was replicated four times. The applied treatments were sewage sludge compost (...

Urease inhibitors possess a wide application in agriculture, clinical science and understanding of enzyme kinetics. These inhibitors play a significant role in reducing the loss of nitrogen from urea fertilizer in the form of volatile ammonia and, thus, improve the utility of urea based fertilizers. Their impact as an effective drug against urease producing bacterial infection is well documente...

The use of pelletized poultry litter (PPL) as a substitute for inorganic fertilizers is increasingly being encouraged in states like Delaware which have a considerable surplus of poultry litter. However, we know very little about the impacts of PPL on runoff water quality and whether it is an environmentally-sound and sustainable alternative to inorganic fertilizer. To address these questions w...

There is great concern worldwide about air and water pollution arising from N-fertilizer. Considering the expansion of agriculture and fertilization practices in Argentina, the objective of this study was to determine the effect of Nfertilizers on soil N dynamics and then relationship with nitrate concentration in aquifers. Soil samples were taken during a maize crop cycle in two agricultural f...

West Pasaman is one of the regencies in Sumatera which center maize. The aimed was to determine income and habits maize farmers using fertilizers, as well role fertilizers soil amendments increasing growth crops. This research carried out 2 experimental stages, first stage farmer interviews second a trial fertilizer types field factorial form, on various macro micro for Pioneer 32’s maize, incl...