杨农间作对作物营养成分的影响  

The influence of poplar-crop intercropping on crop nutrient compositions.

作　　者：袁玉欣[1] 马荣泽[2] 魏宏侠[2] 邵吉祥[2] 

机构地区：[1]河北农业大学,保定071000 [2]河北省林业工程项目管理中心,石家庄050051

出　　处：《中国生态农业学报》2002年第2期44-46,共3页Chinese Journal of Eco-Agriculture

基　　金：河北省自然科学基金(393033);河北省林业厅重点项目(9516102)

摘　　要：通过对杨农间作作物营养成分(淀粉含量、脂肪含量和蛋白质含量)的测定结果表明,过小的行距(如10m)使间作农作物的营养成分降低,如小麦与花生的蛋白质含量分别下降8.4％和2.1％,脂肪含量分别下降4.0％和2.5％;适当的行距(如30m以上)可使作物营养成分得到改善,如小麦和玉米的蛋白质含量分别提高9.6％和11.3％;间作农作物营养成分指标淀粉含量和脂肪含量呈现行中央范围优于对照,靠近树行附近的劣于对照,而蛋白质含量则呈现相反特征。A small spacing, for example 10m, will lead to crop nutrient compositions debasement (including starch, fats and protein) , in which fats contents of wheat and peanut decrease 4.0% and 2.5% as well as the proteins contents are 8.4% and 2.1% , respectively. However, a reasonable spacing, for example 30m, will improve crop nutrient compositions, in which fats contents of wheat and maize increase 9.6% and 11.3% , respectively. It also demonstrates that the indexes of the crop nutrient compositions between rows have the same law in either mature stand or young growth. The content indexes of starch and fats are higher at the middle of rows but lower near the tree base, while the protein is quite the contrary. Among the studied spacing (10~30m), the crop nutrient composition in the middle scope of rows is better than the control, but it is worse near the tree base.

关 键 词：杨农间作 作物 营养成分 毛白杨 

分 类 号：S344.2[农业科学—作物栽培与耕作技术] S753.536[农业科学—农艺学]