低丘红壤地区粮食作物光能利用率和农田能流分析  

Photo-utilization Efficiency of Grain Crop and Field Energy-flow Analysis in Low-hilly Red Soil Region.

作　　者：吕军[1] 俞劲炎[1] 张连佳 

机构地区：[1]浙江农业大学土化系 [2]浙江省十里丰农场农科所

出　　处：《生态学杂志》1990年第6期11-15,共5页Chinese Journal of Ecology

摘　　要：一、引言低丘红壤是重要的土壤资源,广泛分布于浙江金衙盆地和江西、福建等省的许多地区。几十年来,在红壤的开发利用上,取得了很大的成就,尤其是60年代的“旱改水”。Low-hilly red soil regions are impo(?)tant grain production areas in Zhejiang province.Theyhave abundant climatic resources and great productive potentials,but compared with highproductive areas in the province,the conversion ratio of input energy and the photo-utilization efficiency of grain crops are significantly lower.These regions are characterized byhigher crganic fertilizers input,which accounts for 70% of the total energy input for grainproduction.Balances between nutrient elements become more important in the grain productionareas.

关 键 词：低丘红壤 作物 光能利用 农田能流 

分 类 号：S154.4[农业科学—土壤学]