高产玉米因土高效施肥技术研究

Study on the fertilization for the high-yield corn

通过田间试验，研究广东省粤东河源灯塔盆地的粉砂坭地和粤北阳山县石灰岩山区的黄泥地的氮、磷、钾养分的供应特性；高产玉米不同生育期吸收氮、磷、钾的规律，以及在不同土壤上氮、磷、钾肥的不同配比对玉米产量和经济效益的影响。根据试验结果进行统计，提出了高产玉米因上高效施肥技术方法。

By field trials, the characteristics of nutrient applying of N, P and K in silt mud ground soil in Dengta Basin of Heyuan and in yellow mud ground soil in Yangshan county, Guangdong province, the regularity of N, P and K uptake by corn at various growth periods, and the effects of different proportions of N, P and K fertilizers applied to the different soil types on yield of corn are discussed in this paper. The experimental results are statistically analyzed, and the methods of fertilizer application for high yield of corn are put forward.