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Silage production with intercropped pueraria lobata and zea may L

文献类型： 外文期刊

作者： Zhang, X. 1 ; Zhang, Y. 2 ; Li, B. 2 ; Xu, C. 3 ; Cao, W. 4 ; Wang, J. 1 ;

作者机构： 1.Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizer, Hangzhou 310021, Zhejiang, Peoples R China

2.China Agr Univ, Coll Anim Sci & Technol, Dept Grassland Sci, 2 Yuan Ming Yuan Xilu, Beijing 100094, Peoples R China

3.Jiangxi Acad Agr Sci, Inst Soil Fertilizer & Environm Resource, Nanchang 330200, Jiangxi, Peoples R China

4.Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Minist Agr, Key Lab Plant Nutr & Fertilizer, Beijing 100081, Peoples R China

关键词： Intercrop;Pueraria lobata (Willd) Ohwi;Silage;Zea may L

期刊名称：LEGUME RESEARCH （ 影响因子：0.589； 五年影响因子：0.648 ）

ISSN： 0250-5371

年卷期： 2017 年 40 卷 2 期

页码：

收录情况： SCI

摘要： In this study, kudzu vine-corn intercropping model ana their mixed silage were estimated. Two factor split plot experiment design was used. The main factor was intercropping density (A), with four levels: A(0), A(1), A(2), A(3). In which A(0) referred to control with only corn. A(1) was two lines corn with one line kudzu, which means corn: kudzu =2:1. A(2), referred to two lines corn with two lines kudzu, which was kudzu: corn= 2:2. A(3) was two lines corn with three lines of kudzu, which meant the ratio between kudzu and corn was 2:3. The vice factor was nitrogen utilization level (B), also with four levels: B-0, B-1, B-2, B-3. B-0 meant no nitrogen utilization (0 kg/hm(2)). B-1 referred to the nitrogen level at 50 kg/hm(2); B-2 was 100 kg/hm(2) and B-3 was 200 kg/hm(2). Corn was sowed in April and July separately in kudzu vine field. Two forages were harvested together when the corn was at the milk stage. After that, we measured the yield of the forages and then mixed the samples uniformly in each treatment. The mixed samples were chopped up and made into silage using the bag storage method for 60 days and then the silage quality was estimated by nutrition analysis including crude protein, crude fiber, ashes, fat and pH value. The results showed that, intercropping ratio of kudzu vine and corn was the main factor that influenced the system yield and nutrient content. The influence of nitrogen fertilizer declined as the kudzu vine grew. Intercropping density A(1), nitrogen application level B-1 or B-2 can get the highest nutrient yield, at the same time decrease nitrogen input. Meanwhile, the pH value of the silage was low, which indicated a good silage quality.

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