摘要
采用小区试验与大面积示范相结合的方法，对针对宁南半干旱偏旱区土壤养分特点研制的小麦、马铃薯、糜谷和甜菜专用肥的增产效果进行了研究。结果表明：由于作物专用肥中含有各种大量元素和微量元素，满足了作物对各种营养元素，特别是试区土壤中极其缺乏的微量元素的需求，克服了影响作物增产的土壤障碍因子，因而增产效果明显。与等养分单质化肥相比，增产幅度６．３％～５１．３％；与农民习惯施肥相比，增产幅度１９．１％～２９．４％。每公顷可增加收益１１３１元。
Combining the field plot tests with demonstration, a study was carried out to test the yieldincreasing effect of specific fertilizers which made for wheat, millet, potato, sugar beet ect. based on the soil characteristics in semiarid and liable to drought regions in Southern Ningxia. The experimental results showed that these specific fertilizers had markedly yieldincreasing effects, due to containing various kinds of macro and micro nutrients which meet the crops needs, especially some micronutrients which were lack in the soil. Compared with common fertilizers that contain same quantities of nutrients, the yield increased 6.3%51.3% by applying the specific fertilizers; compared with local farmers traditional fertilization, the yield increased 19.1%29.4% by applying the specific fertilizers. The net income increased 1 131 Yuan per hectare by applying the specific fertilizers.
出处
《干旱地区农业研究》
CSCD
北大核心
1999年第2期49-52,共4页
Agricultural Research in the Arid Areas
基金
国家"九五"旱农攻关项目
关键词
专用肥
增产
增收
宁南
半干旱偏旱区
semiarid and liable to drought regions in Southern Ningxia
specific fertilizer
yieldincreasing
incomeincreasing
