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用少量化肥做小麦种肥的增产效果早已被生产实践所证明,但是用哪种化肥效果最好过去还不够明确。1980年我们在两个基点进行了尿素、氮磷复合肥和磷酸二铵三种化肥做小麦种肥的试验,化肥用量分别为7斤/亩和10斤/亩,试验品种是欧柔。现将勇士基点的结果介绍如下:一、对出苗和生长的影响三种化肥对小麦的出苗率都有不同程度的影响,以尿素影响最大,磷酸二铵次之,复合肥影响最小;同时,随着施肥量的增加,对出苗的影响也越大。
With a small amount of fertilizer to increase the yield of wheat seed fertilizer has long been proven by the production practice, but which of the best fertilizer used in the past is not clear enough. In 1980, we conducted two types of fertilizers including urea, nitrogen and phosphorus fertilizer and diammonium phosphate fertilizer at two basic points. The fertilizer application rates were 7 kg / mu and 10 kg / mu, respectively. Now the results of the Warriors base point are as follows: First, the impact on the emergence and growth of three kinds of fertilizers on the emergence rate of wheat has varying degrees of impact to the maximum impact of urea, followed by DAP, the least impact of compound fertilizer; the same time, As the amount of fertilizer increases, the greater the impact on emergence.