Seasonally Variation of Nitrate Level Before and After Fertilizers Application in Ground Water of Sikar District (India)

Abstract

Geochemical processes are identified as controlling factors of groundwater chemistry, including chemical leaching and nitrate contaminations. These geochemical processes are analyzed using major physico-chemical parameters of ground water from Sikar district. The analysis indicated that nitrate, phosphorous and potassium concentrations in fertilizers consumed area (FCA) have been observed greater than none fertilizers consumed area (NCA). These increased level has been observed after fertilizers application in the FCA, thereby suggesting the need for prevent excessive fertilizer uses, soil conservation, balanced fertilization, uses of slow-release fertilizers and best management for manure storages. No appreciable changes in water quality parameters have been pointed out in NCA during same period of application.

Distribution of Total Petrogenic Hydrocarbon in Dungun River Basin, Malaysia

“…Some TPH such as polycyclic aromatic hydrocarbon can cause carcinogenic and mutagenic effect to the public health [3][4][5] . Thus, determination and monitoring of TPH in water bodies is necessary and important for protecting ecosystem and human health.…”

Determination of Pesticide Residues Level in Phaseoulus Vulgaris Sp.Plant Soil at Cameron Highland

“…Chlorothalonilhalf life in soil is 1 to 2 months while the mancozeb is 1 to 7 days [4][5] . The persistence of chlorothalonil is from 200 days to one year 6 while the persistence of mancozeb is from at least 2 days 7 .…”

Validation of Late Season Cornstalk Nitrate Test under Different Natural and Social Environments for Better Fertilizer Management in China

“…However, the soil testing has been mainly used to develop sitespecific fertilizer formula prior to planting; in-season testing to see if additional nitrogen fertilizer is needed has not received sufficient attention in China. The Pre-Sidedress Soil Nitrate Test (PSNT) developed at University of Vermont is a method available to corn grower for improving the efficiency of nitrogen fertilizer application [21][22][23] . The test should be conducted just prior to sidedressing and it determines the nitrate content available in the soil at that time.…”