论文部分内容阅读
巴林左旗2005年开始实施测土施肥项目,到2010年末,采集耕地土样7500个,分析土壤硫7500项次,制作了硫元素养分分级图,完成了玉米使用硫元素试验23个。2008~2010年采集耕地土样3545个,包括草甸土、风砂土、栗钙土和棕壤,覆盖了所有耕地类型,代表耕地面积67.92万亩。分析有效硫样品3545个,采用国家测土施肥技术规程确定的检验方法,磷酸盐-乙酸浸提-硫酸钡比浊法。
By the end of 2010, Balinzuoqi started to implement the soil testing and fertilization project. By the end of 2010, 7500 soil samples of cultivated land were collected and 7,500 soil sulfur samples were analyzed. The sulfur elemental nutrient gradation chart was completed and 23 elements of corn were tested using sulfur element. From 2008 to 2010, 3545 cultivated land samples were collected, including meadow soil, aeolian sand, chestnut soil and brown soil, covering all types of cultivated land, representing an area of 67.92 mu of cultivated land. Analysis of 3545 effective sulfur samples, using the national soil testing and fertilization technology regulations to determine the test method, phosphate - acetic acid leaching - barium sulfate turbidimetric method.