Bikaner district

Concerns have been raised about pesticide residue in agricultural product. This research paper examines the problem of pesticide residues and their effects on human health with a particular focus on the dry Bikaner area of Rajasthan. The current investigation is taken with determine the types and residue status of currently used pesticide in oilseed crops of Bikaner district. According to the preliminary surveys, there are mainly eight pesticides being used in Bikaner division. A study conducted to analyze 18 pesticide residues in mustard and groundnut oilseed crops. The gas chromatography technique (Shimadzu model) was used to evaluate 40 samples of each oilseed. Three out of 40 samples, confined residues of carbendazim, mancozeb and emamectin benzoate in groundnut and two out of 40 samples, confined residues of carbendazim and mancozeb in mustard, which is above the Maximum residue limit (MRL) values. The study's results help to improve awareness of the pesticide residue problem in the area, enable the creation of practical mitigation plans, and lay the groundwork for further study and policy development in this field.

A study was conducted to determine the quality of underground water of Badrasar village of Bikaner district of Rajasthan; based on classification, 31.25% of irrigation water was normal waters (SAR 5 - 10) followed by 62.5% low sodic waters (SAR 10-20) and 6.25% medium sodic waters (SAR 20-30), while 50% of irrigation water was low alkali waters (RSC < 2.5 me L-1) followed by 31.25 % medium alkali waters (RSC 2.5 - 5.0 me L-1) , 12.50% high alkali waters (RSC 5-10 me L-1) and 6.25 % high alkali waters (RSC >10.0 me L-1. In underground water, Na+ cation concentration was higher followed by Ca++ while in anions HCO3- was higher followed by Cl- and CO3--in anions. Increasing salt concentration in irrigation water was due to decreasing water table every year because of erratic or low rain fall. In sandy loam soils, higher values of EC, pH, sodium absorption ratio and residual sodium carbonates were recorded in comparison to the sandy soils.