去冬今春,我县结合农业资源调查和农业区划工作,对白舍、莱溪、市山、古城、太和、城郊公社和长红垦殖场七个单位的各种类型田块,取土样438个进行了速测化验分析,了解当前土壤养分状况,以便根据科学数据,因土种植、合理施肥。根据七个单位土壤样本氮、磷、钾三要素速测化验结果,按照县级土壤养分分级标准(低量表示极其缺乏,中量表示含量一般,高量则表示丰富)来衡量,对应用土壤普查成果、因土施肥问题作如下分析: ①氮素养分七个单位低量(30—60ppm)只占15.3％,中量(60—90ppm)占30.3％,其余属于高量(90ppm以上)。说明目前我县耕地氮素营养部分欠缺,但水平相对较高。加之各地对氮素化肥的施用一贯重视,供应比较充足,问题 To winter and spring, my county combined with the investigation of agricultural resources and agricultural zoning work on the various types of plots of seven units of Besshe, Laixi, Shan Shan, the ancient city, Taihe, suburban communes and Changhong Reclamation, soil samples 438 A rapid test analysis to understand the current status of soil nutrients, so that according to scientific data, due to soil planting, fertilization. According to the quick test results of three elements of nitrogen, phosphorus and potassium in seven soil samples, according to the county soil nutrient classification standard (the low amount means extremely lacking, the middle amount means the content is normal, the high amount means rich) The results of the census and soil fertilization were analyzed as follows: ① Nitrogen nutrients only accounted for 15.3% of the total in the low-volume (30-60ppm), medium (60-90ppm) 30.3% and the rest in high (90ppm and above). This shows that at present, some of the cultivated land nitrogen nutrition in our county is deficient, but the level is relatively high. Coupled with the application of nitrogen fertilizer throughout the consistent emphasis on supply more adequate, the problem