摘要
以玉米品种郑单958为试验材料,通过在试验种植小区的氮、磷、钾不同比例的施肥研究对比,探讨钾肥对玉米的增产效果。结果表明,试验地土壤氮、磷养分供应充足,钾是该类土壤的主要限制因子,应重施钾肥,进一步提高作物产量,以获得最大的经济效益。
Taking Zhengdan 958 as material ,the application effect of different ratios of NPK fertilizer on corn in test growing area was studied to discuss the yield-increasing effect of potassium fertilizer. Results showed that the supplies of nitrogen and phosphorus were adequate, and the potassium was the limiting factor of soil. It＇s proposed that potassium should be applied to promote the yield of crops and obtain maximum economic benefit.
出处
《现代农业科技》
2013年第11期14-14,17,共2页
Modern Agricultural Science and Technology
关键词
氮磷钾肥
玉米
应用效果
NPK fertilizer
corn
applicat＇ion effect
