不同覆盖方式对枣园生草越冬率的影响  

Effects of Different Mulching Methods on the Winter Survival Rate of Forage in Jujube Orchard

作　　者：杨凯[1] 邹新平[2] 许庆方[2] 杨兆宝[1] 高文俊[2] 李六林[3] 张鹏飞[3] 

机构地区：[1]山西省农科院果树研究所,山西太谷030815 [2]山西农业大学动物科技学院,山西太谷030801 [3]山西农业大学园艺学院,山西太谷030801

出　　处：《山西农业大学学报（自然科学版）》2014年第4期353-355,共3页Journal of Shanxi Agricultural University(Natural Science Edition)

基　　金："十二五"国家科技支撑计划(2011BAD17B02);公益性行业(农业)科研专项(201303061)

摘　　要：为了提高枣园栽培饲草的越冬率,在枣园分别采用薄膜覆盖、玉米秸秆覆盖和增施钾肥的措施,对多变小冠花、百脉根和白三叶的越冬率和冬前根部的碳水化合物含量进行了分析。结果表明,薄膜覆盖和玉米秸秆覆盖均能够极显著提高3种饲草的越冬率(P<0.01),薄膜覆盖的效应极显著高于玉米秸秆覆盖(P<0.01),施用钾肥对饲草的越冬没有显著的效应。多变小冠花、百脉根和白三叶3种饲草根部可溶性总糖含量与饲草的抗寒性呈正相关关系,而与淀粉含量呈负相关关系。In order to enhance the winter survival rate of forage in jujube orchard, film covering, corn straw covering and potassium supplement were applied, and the survive rate of and carbohydrate content of root of Coronilla varia, Lotus cornioulatus, and Trifoliurn repens were also analyzed. The results showed that both film and corn straw covering in creased significantly the survive rate of the target forages （P〈0. 01）, and the effects of former one is significantly higher than the later （P〈0. 01）, while potassium supplement made no difference. The content of total soluble sugar in root showed a positive correlation with survive rate of Coronilla varia, Lotus cornioulatus, and Trifolium repens, while an inverse correlation with starch content.

关 键 词：果园生草 白三叶 百脉根 多变小冠花 越冬 

分 类 号：S665.1[农业科学—果树学] S812.8[农业科学—园艺学]