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农学学报

农学学报 ›› 2011, Vol. 1 ›› Issue (9): 49-52.

所属专题： 玉米

• 土壤肥料 资源环境 生态 • 上一篇    下一篇

施磷量及磷锌配施对夏玉米生长发育及籽粒产量的影响

杨随鹏   

  • 收稿日期:2011-07-15 修回日期:2011-10-17 出版日期:2011-11-20 发布日期:2011-11-20

Effects of Phosphorus Quantity and “Combinations of Phosphorus and Zinc Fertilizer” on Growth and Grain Yield of Summer Maize

  • Received:2011-07-15 Revised:2011-10-17 Online:2011-11-20 Published:2011-11-20

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摘要：

为更好探索小麦/玉米一年两熟种植制度下，夏玉米施肥制度，实现夏玉米抗逆高产丰产。于2010年采用裂区设计，对施磷量及磷锌配施对夏玉米生长发育及籽粒产量的影响进行研究。结果表明：单施磷肥或磷锌配施促进夏玉米生长发育，增加干物质积累和次生根数，降低秃尖、改善穗部性状、提高抗病能，且配施效果优于单施磷肥。单施磷较对照增产幅度为7.70%~31.21%，配施增产15.99%~40.34%，磷锌配施较单施磷肥增产幅度达4.03%~8.73%。其中以施P2O5量在180 kg/hm2时配施15 kg/hm2硫酸锌，产量最高达9581.2 kg/hm2。经回归拟合，单施磷肥和磷锌配施的最佳施P2O5量分别为178.65 kg/hm2和203.49 kg/hm2，籽粒产量可达8823.0 kg/hm2和9499.61 kg/hm2。因此，在施氮基础上，配施磷或磷锌可促进夏玉米生长发育，实现高产抗逆高效栽培。

关键词: 山核桃, 山核桃, 水溶性成分, SH-SY5Y细胞, HPLC, LC-MS, 神经营养活性

Abstract:

This paper studied the effects of phosphorus and combinations of phosphorus and zinc fertilizer on growth and development and grain yield of summer maize by split block design. The results showed that phosphate fertilizer application alone or combinations of phosphorus and zinc fertilizer was promoting growth and development of summer maize, increasing dry matter accumulation and secondary root numbers, reducing bare tip, improving ear characters and disease resistance, and the effect of combinations of phosphorus and zinc fertilizer was better than phosphate fertilizer application alone. The yield of phosphate fertilizer application alone and combinations of phosphorus and zinc fertilizer were 7.70%-31.21% and 15.99%-40.34% higher than that of control, respectively. The yield of combinations of phosphorus and zinc fertilizer was 4.03%-8.73% higher than that of phosphate fertilizer application alone. The highest yield was reached 9581.2 kg/hm2 when P2O5 and ZnSO4 application rate were 180 kg/hm2 and 15 kg/hm2. According to the regression analysis, the highest yield will be reached 8823.0 kg/hm2 and 9499.61 kg/hm2 when P2O5 application rate in phosphate fertilizer application alone and combinations of phosphorus and zinc fertilizer are 178.65 kg/hm2 and 203.49 kg/hm2, respectively. The ratio of input to output is high, and the economic benefit is best.