广西复合(混)肥的发展趋势及施用效应  

Developing trend and effects of applying mixed fertilizers in Guangxi

作　　者：何永群[1] 龙淑珍[1] 杨桂梅 

机构地区：[1]广西农科院土肥研究所,南宁530007 [2]防城港市农技中心,广西防城港538021

出　　处：《广西农业科学》2006年第5期556-559,共4页Guangxi Agricultural Sciences

摘　　要：施用复合（混）肥简便、省力，农作物增产增收效果显著。广西复合（混）肥的氮、磷、钾（折纯）施用量已从1990年的10万t增至2003年的56万t，其占化肥总量的比例也从1990年的11．62%增至30．43%；施用品种由通用无机单一比例型向多种配比、多种系列以及新特型发展。在等量氮、磷、钾总养分条件下，对水稻、甘蔗、辣椒、荔枝进行复混肥施用效应试验，结果表明：通用复混肥比习惯施肥增产5．67%～14．64％；专用复混肥比通用复混肥增产5．04％～20．28％；有机无机复混肥比通用复混肥增产5．52％～25．80％。The application of mixed fertilizers is very simple and labour-saving, and the applying effects on the crop yield and farmer＇s income are very obvious. The application of N, P, K in mixed fertilizers increased by 56,000 tons from 10,000 tons from 1990 to 2003, and the proportion of mixed fertilizer to total content of chemical fertilizers increased by 30. 43% from 11. 62% in 1990. The mixed fertilizer types were also changed from inorganic single proportion type to multi-combined and multi-series and new special type. Under the equal quantity of N, P, K, the effect studies of mixed fertilizer on rice, sugarcane, pepper and litchi were carried out, and the results showed that the crops yield of applying normal mixed fertilizer increased by 5.67%-14. 64% as compared with the conventional fertilizer; that of effect of applying special fertilizer increased by 5. 04%-20. 28% as compared to the normal mixed fertilizer; and that of applying organic and inorganic mixed fertilizer increased by 5. 52%-25.8% as compared to normal fertilizer.

关 键 词：广西复合(混)肥 发展趋势 施用效应 

分 类 号：S143.5[农业科学—肥料学]