论文部分内容阅读
(一)根据配方要求选用适合的复肥品种配方施肥中的肥料配方,是依据土壤养分状况、作物品种特性及产量水平等条件确定的。所以,在配方施肥中选复合肥品种必须符合配方要求。如:配方中仅需氮磷肥,就应选用氮磷二元复合肥品种,并尽量使其养分含量比例与配方所需的相应养分比例相近,才能发挥肥料配方的最佳效果。
(A) According to the requirements of the formula selection of suitable compound fertilizer formula fertilization fertilizer formula is based on soil nutrients, crop varieties and yield levels and other conditions identified. Therefore, the formula fertilizers selected compound fertilizer varieties must meet the requirements. Such as: formula only nitrogen and phosphorus fertilizer, nitrogen and phosphorus should be used binary compound fertilizer varieties, and try to make the proportion of nutrients and formulations required for the corresponding proportion of nutrients in order to play the best effect of fertilizer formula.