论文部分内容阅读
遵化市总耕地面积78.3万亩,全市年化肥用量约5万t,主要品种有:三元素(氮磷钾复合肥)、二元素复合肥(氮钾复合肥),占肥料品种的40%;主要作物专用肥,占肥料品种的20%;单质肥料如尿素、硫酸钾、碳酸氢铵,占肥料品种的40%。小
Zunhua City, the total area of 783,000 mu of arable land, the city’s annual fertilizer consumption of about 50,000 t, the main varieties are: three elements (NPK compound fertilizer), two elemental compound fertilizer (nitrogen and potassium compound fertilizer), fertilizer accounted for 40% ; The main crop fertilizer, accounting for 20% of fertilizer varieties; simple fertilizers such as urea, potassium sulfate, ammonium bicarbonate, accounting for 40% of fertilizer varieties. small