一、何时追肥对增产的作用最大根据我们对谷子适期追肥曾作过的一些试验结果分析,初步明确了谷子的增产关键时期即发育阶段需要营养最迫切的时期,是在抽穗前十五到二十天的孕穗阶段。在这一个时期追肥能比不追肥的多增产百分之四点二(表一)。 First, when the role of top dressing to increase the maximum According to our suitable dressing on the millet have made some of the experimental results have been initially identified a key period of millet production that is the most urgent stage of development needs nutrition, is heading fifteen To twenty days of booting stage. During this period, top dressing can yield an additional 4.2% more than the non-top dressing (Table 1).