青贮玉米生产性能对收获期的响应及收获指数的探讨

doi:10.11843/j.issn.0366-6964.2015.08.013

Abstract

Abstract:

The effect of different harvest times on productive qualities and silage qualities of silage corn were studied，harvest index were used to evaluate the different harvest times.The JINDAN42 corn hybrid was harvested at blister stage，milk stage，dough stage and physiological maturity.The corn were sampled and ensiled for analyzing the chemical composition and the harvest index was calculated.The results indicated that the DM production，starch and EE content increased significantly (P<0.01)，while NDFD decreased (P<0.05) with the harvest time prolonged.The fermentative quality of corn silage at blister stage was worst compared that of the other stages (P<0.01).The appropriate harvest time was dough stage according to the crop harvest index or MILK 2006 index.The dough stage was suitable for corn silage on the production，quality and silage product features，in simple，the DM content and production are suitable indices for guiding silage corn harvest.

CLC Number:

S816

ZHU Hui-sen，ZOU Xin-ping，YU Zhu，GAO Wen-jun，WANG Yong-xin，TONG Li-rong，XU Qing-fang. Response of Productive Qualities of Corn Silage to Harvest Time and Exploration of Harvest Index of Corn Silage[J]. ACTA VETERINARIA ET ZOOTECHNICA SINICA, 2015, 46(8): 1375-1382.

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References

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Response of Productive Qualities of Corn Silage to Harvest Time and Exploration of Harvest Index of Corn Silage

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