Evaluation of production performance and nutritive values of inter-cropping between silage maize and grain maize
In order to determine the production performance of different genotype of maize inter-cropping.The silage maize and kernel maize inter-cropping were used to study the effects of different inter-cropping patterns on the population's fresh grass yield and ear yield,the effects of dry matter content and feeding quality.The results showed that the ear yield,fresh grass yield,and dry matter content of H14 treatment(2∶2 inter-cropping between Longmu 7 and Yufeng 303)were higher than those of other combination treatments.H20 treatment(monoculture Beinong silage 208)had the highest crude protein content of 15.71％,the second was H14(2∶2 inter-cropping between Longmu 7 and Yufeng 303),the content of crude protein was 15.38％.The content of crude fat in H4(3∶1 nter-cropping between Longmu 7 and Yufeng 303)was the highest 2.80％,which was significantly higher than that in other treatment(P＜0.05).The highest starch content was 36.69％in H22 treatment,H21(monoculture Xianyu 335)and H2(1∶3 inter-cropping between Beinong silage 208 and Yufeng 303)were the second treatments with starch content of 35.11％and 35.10％,respectively,H2,H21 and H22 treatments were significantly different from other treatments.The RFV of H20 was 160.44,and that of H18(2∶2 inter-cropping between Jingke silage 932 and Yufeng 303)was 159.56.The study indicates that the result of comprehensive evaluation of subordinate function showed that the subordinate function value between Longmu 7 silage maize and Yufeng 303 grain maize was 2∶2,the productive performance was the highest.The second one was Jingke silage 932 and Yufeng 303,with a ratio of 2∶2,and the third one was Beinong silage 208 and Yufeng 303,with a ratio of 1∶3.
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