Effects Of Mixed Planting Model On Physiological Characters And Yield Quality In Silage Corn

The study discussed effects of different societies on growing characters and yield forming of silage corn through the study of single planting and mixed planting of three silage corn varieties which were generalized and applied at the present and mixed planting society with semi-cultivated soybean in the term of nature characters and development requirements of Heilongjiang. In order to discuss the effect of mixed planting in diffentent varities and with smei-cultivated soybean, and on the basis of comparison between mixed planting and single planting of biological yield, forage quality and colony photosynthesis characters to study the influence of different societies to growth characters, yield formation and colony forage quality of silage corn and to select the most suitable silage corn variety and mixed socity in Heilongjiang. In order to provide the consult of high yield and good quality cultivation in silage corn, give service to agricultural development and the adjustment of industrial structure, finaly promote and improve the development of the animal husbandry in Heilongjiang province.The results were manifested: mixed planting can improve and accumulate the content of dry matters; improve the accumulation of dry matter, mixed planting especially the mixed planting of different corn varieties with semi-cultivated soybean can increase the biological yield of the colony than the single planting of corresponding corn varieties. The order settled in turn was: Longfu208 with semi-cultivated soybean,Zhongyuandan32 with semi-cultivated soybean,Gaoyou115 and semi-cultivated soybean; in the mixed planting of silage corn with semi-cultivated soybean, the content of crude protein was improved, in the same time of great significant increasing of mixed planting of Longfu 208 with semi-cultivated soybean than the single planting of Longfu208, the yield of crude fat and soluble protein all have significant increased, the crude textile fiber had no significant increased, and the nutrition ingredient of population was equally, the speeding quality had improved, too. The crude protein production under mixed planting of corn that was Longfu208 + Zhongyuandan 32 was higher than all of the single planting treatments, but it had lower biological yield than the treatment Longfu208 + Gaoyou115, compared with the single sowing, the mixture sowing not only improved the biological yield but also the economical benefit.Under the single planting, the biological yield of Longfu208 was the maximum, crude protein production of Zhongyuandan32 was the maximum , and the correlation of crude protein yield between Zhongyandan32 and Longfu208 were not significantly, but to Gaoyou115 the correlation was significantly; the biological production of single planting of Zhongyandan32 was lower and significantly lower than that of Longfu208; to high-soil cultivars Gaoyou115 the biological yield was ultimately lower than Zhongyuandan32, and the forage quality was relatively worse, too.