摘要
为探讨优化配方施肥对玉米产量、品质和经济效益的影响,指导科学合理施肥,进行优化配方施肥试验。试验结果表明:优化配方施肥对玉米生长发育具有显明的促进作用。主要表现为:促进玉米的营养生长,增加有效穗、穗长、穗行数、行粒数、千粒重;提高玉米籽粒蛋白质、脂肪、淀粉含量,降低可溶性糖含量,改善玉米的品质。在本试验条件下,优化配方施肥单产达8 784.4kg/hm2,比常规施肥单产7 463.7kg/hm2,增产1 320.7kg/hm2,增长17.7%;优化配方施肥净增效益31 531元/hm2,比常规施肥净增效益26 367元/hm2,增加5 164元/hm2,增长19.6%,增产增收显著。
In order to explore the impact of optimized formula fertilization on yield,quality and eco- nomic benefits of corn, so as to provide scientific and proper fertilization, an optimized formula fertil- ization experiment has been conducted. The results showed that optimized formula fertilization promot- ed the growth and development of corn greatly mainly as follows：to promote corn vegetative growth,in- creased effective ear,ear length,rows per ear, kernels per row,kernel weight;improve corn grain pro- tein ,fat, starch content, to reduce soluble sugar content, improve the quality of corn. Under the test conditions,yield of 8 784.4kg/hm2 can be reached by means of optimized formula fertilization, with an increase of 17.7%, 1 320.7kg/hm2 more than the conventional fertilization,7 463.7kg/hm2. Yield of 8 784.4kg/hm2 can be reached by means of optimized formula fertilization,with an increase of 17.7%, 1 320.7kg/hm2 more than the conventional fertilization,7 463.7kg/hm2. Optimized formula t^rtilization produced net returns of 31,531yualdhm2,increase by 19.6% ,5 164yuan/hm2,over the net returns of conventional t^rtilization, 26 367 元/hm2. The increase of yield and economic benefit is significant.
出处
《广西农学报》
2012年第4期14-16,23,共4页
Journal of Guangxi Agriculture
基金
测土配方施肥补贴项目(农办财〔2010〕47号)
关键词
玉米
配方施肥
产量
品质
效益
Corn
formula fertilization
yield
quality
benefit
