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Effects of Fertilizing on Nutritional Quality and Feeding Value of Maize Silage

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  • College of Animal Science & Technology, Hebei Agricultural University, Baoding 071000, China

Online published: 2011-06-17

Abstract

The aim of the experiment was to explore the effects of fertilizing model and application level on nutritional quality and feeding value of maize silage, and then set up the resource-saving mode of fertilization. Field experiment was conducted in Shijiazhuang in 2008. A completely randomized re-split-plot block design was adopted to study the influence of the proportion and quantity of base fertilizer (barnyard manure and inorganic fertilizer), seed manure (zinc fertilizer) and topdressing (urea) on the nutritional quality and feeding value of maize silage. The results were showed as follows: 1) base fertilizer, seed manure and topdressing all affect the contents of crude protein (CP), crude ash (CA), ether extract (EE), neutral detergent fiber (NDF), acid detergent fiber (ADF), grading index (GI) and relative feed value (RFV) significantly; 2) barnyard manure is more favorable for nutritional quality and feeding value of maize silage than inorganic fertilizer. The nutritional quality and feeding value of maize silage in topdressing condition are better than those under non-topdressing. Seed fertilizer of 15 kg/hm2 ZnSO4·6H2O is suitable for the contents of CP and CA, RFV and GI. But for EE content, the application level of seed manure of 30 kg/hm2 ZnSO4·6H2O is favorable. For the contents of NDF and ADF, the equivalent application level of seed manure are 0 or 30 kg/hm2 ZnSO4·6H2O. In conclusion, 50 000 kg/hm2 of cow dung manure as base fertilize, 15 kg/hm2 ZnSO4·6H2O mixed with seed when sowing, and 300 kg/hm2 urea as topdressing applied to the field 25 days after sowing, maize silage have the highest nutritional quality and feeding value. Barnyard manure as base fertilizer is better than inorganic fertilizer. [Chinese Journal of Animal Nutrition, 2011, 23(6):1043 -1051]

Cite this article

XU Minyun,XIE Fan,LI Yunqi,LI Jianguo,YI Xia,CAO Yufeng . Effects of Fertilizing on Nutritional Quality and Feeding Value of Maize Silage[J]. Chinese Journal of Animal Nutrition, 2011 , 23(06) : 1043 -1051 . DOI: 10.3969/j.issn.1006-267x.2011.06.023

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