期刊论文

中文

中国土壤与肥料

1673-6257

2012

6

53-56

公益性行业科研专项“农作物最佳养分管理技术研究与应用”（201103003）；

本校为第一机构

通过在浏阳和湘阴两个县市进行田间肥效试验,研究了3种中低品位磷矿生产的钙镁磷型复混肥对湖南晚稻产量及磷肥效率的影响。结果表明:在当前生产条件下,晚稻施用中低品位磷矿生产的钙镁磷型复混肥处理较农民习惯施肥处理具有显著的增产效果,平均增产量为0.77 t/hm~2,增产率为9.1%。钙镁磷型复混肥处理较农民习惯施肥处理可以提高晚稻的每穴穗数、每穴有效穗数和每公顷有效穗数等产量构成因素。钙镁磷型复混肥处理的磷肥利用率、磷肥农艺效率和磷肥产投比分别较农民习惯施肥处理平均提高78.8%、44.4%和17.3%,并能降低磷肥物质生产率。3种类型中低品位磷矿生产的钙镁磷型复混肥与高品位磷矿生产的...

In this paper,field experiments of late rice were conducted to study the effect of three CMP-compound fertilizers made of medium-low grade phosphate rock on rice yield and phosphorus efficiency in Liuyang and Xiangyin,Hunan Province.The results showed that the average yields of the CMP-compound fertilizer treatments of late rice were 0.77 t/hm2higher than those of the farmers used fertilizer treatment,respectively.It was concluded that the P application increased grain yield significantly,with the yield increase rate of 9.1% for late rice.The per hole effective ears,per hole ears and panicle e...