玉米一次性基施化肥方法的初步探讨

在三种不同的土壤上对玉米一次性基施化肥的三种方法的产量效果的研究表明：化肥一次性分层基施与化肥分期施用的玉米产量无显著差别，而化肥一次性浅基施和一次性深基施的玉米产量不如分期施肥法。不同施肥法的玉米产量的差异主要是由于玉米的每行粒数和百粒重二个性状的改变所致。就化肥的一次性浅基施和深基施而言，在白浆土上以一次深基施为好；对于黑钙土来说，则以一次性浅基施为佳；在黑土上，二者的产量无显著差异。

PRIMARY STUDY ON THE WAYS OF BASE-APPLING ALL FERTILIZERS ONCE TO MAIZE

In three kinds of soils, chemical fertilizers were applied to maize by three different ways. The results showed that the maize yield of the split-horizon fertilization was similar to that of the date-appling and the shallow-appling was inferior to that of the date-appling. The different ways of the fertilization affected the maize yield by changing the seed number per line and 100-seed weight of the maize. As for the comparison between the deep-appling and shallow-appling of the chemical fertilizers to maize,the deep-appling was more adequate to Calcic chernozems, the shallow-appling was better for Haplic phaiozem, and the two ways had no difference in affecting maize yield in Albic luvisols.