大豆高产巧追肥要夺取大豆高产丰收，必须在施足基肥的基础上．进行合理追肥，及时补充大豆所需要的养分。具体追肥技巧如下：一、早施苗肥。大豆幼苗期，根瘤尚无固氮能力，如果氮肥供应不足，就会产生“饥饿”现象。所以，应在第一片复叶展开时及时进行补充氮肥。一般亩... Soybean high-yielding top-dressing To seize the high-yielding soybean harvest, must be based on the Shizujifei. Reasonable top dressing, timely supplement of nutrients needed by soybeans. Specific top dressing techniques are as follows: First, early application of Miao. Soybean seedling stage, nodules still no ability to fix nitrogen, if the supply of nitrogen deficiency, it will have a “hunger” phenomenon. Therefore, should be supplemented nitrogen fertilizer in time when the first compound leaves unfold. General mu ...