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为了全面了解全县土壤养分状况,提高作物产量、品质,发展无公害农产品生产,科学指导施肥,降低农业生产成本,从1998年开始前郭县就有计划分步骤地开展了土壤养分全面调查与质量评估工作。先后布设样点及采集土样24200份,其中大田采样18500份,水田采样1100份,蔬菜田采样260份,农田灌溉水样4340份。对这些样本进行了有机质、PH值、碱解氮、全氮、速效钾、速效磷、中微量元素7个项目的化验分析(此次化验以1982年第二次土壤普查结果作对照)。
In order to fully understand the state of soil nutrients in the county, improve crop yield, quality, development of pollution-free agricultural products, scientific guidance fertilization, reduce agricultural production costs, since the beginning of 1998 Qianqian County has carried out a step-by-step plan to conduct a comprehensive soil nutrient survey and Quality assessment. There were 24,200 samples of soil samples collected and collected successively, of which 18,500 were field samples, 1,100 paddy fields, 260 vegetable field samples and 4340 farmland water samples. The samples were analyzed for seven items of organic matter, pH value, alkaline hydrolysis nitrogen, total nitrogen, available potassium, available phosphorus, and trace elements (this test was compared with the results of the second soil survey in 1982).