【摘要】 肥料的施用是提高作物单产的重要措施之一.作物产量的一半左右来自肥料的施用.根据不同作物需肥规律及需肥特点,结合不同土壤供肥能力及耕层土壤有关营养元素测试结果,经过多年试验、示范结果研制的大豆重迎茬专用肥,大豆多元素专用肥玉米、小麦、向日葵、马铃薯等多功能作物专用肥可显著提高单产;作物专用肥的生产施用缺口很大,仅占需要量的十分之一,研制开发高效、多功能专用肥势在必行.表4。更多还原

【Abstract】 Fertilizer application is one of the important measears for increasing crops uni yield. Abact one half of crops yield is attributed to lertilizor paaication. According to the rule of fertilicer requirment of different crops and their characteristics,comlining with fertilizer supplying ability in different kinds of soil and dermination resalts of relevant nutriet elements in top soil.mang exper-imeats have been conducted for many years and mary achwements have hear obtained. Some specif ic fertilizers which can raise crops per unit yield significantly have been developed and demonstrated such as the specific fertilizer for coatinuous growing soybean, Soybean specific fertilizer with mutifunction and some othar crops (Corn.wheat.sumfloner.potato,etc)specific fertilizer with mu-atifaction ,etc. There is a big gap in the specific fertilizer productior and application which only accounts for about one tanth of total amount of fertilizer requirement. It is imporitive to research and develop the highy effective speicfic ferlilizers with multi function.更多还原