Comparative Study on Yield and Nutritional Components of Multiple Cropping Forage Sorghum and Corn

doi:10.6048/j.issn.1001-4330.2019.04.008

Abstract

Abstract: 【Objective】 The main nutrient contents and distribution rules of forage sorghum and maize were studied in order to provide scientific basis for improving feed quality and developing and utilizing feed resources in southern Xinjiang. 【Method】Under the same cultivation and management conditions, maize variety Xinyu 29 and forage sorghum Jinmu 1 were used to compared and analyze the productivity and nutrient composition of the two multiple cropping species after wheat. 【Result】Jinmu No.1 could be cut twice a year, while Xinyu No.29 was only harvested once. The fresh yield of Jinmu No.1 was higher than of that of Xinyu No. 29. Their total yields were 167,732.73 kg/hm² and 76,276.27 kg/hm², respectively; the yield of the former was 119.90% higher than that of the latter. The nutritional components and distribution of stems and leaves of Jinmu No. 1 and Xinyu No.29 were different, but both of their crude protein and total soluble sugar had the same distribution rule, stems > leaves. The crude ash and water content of different parts of Jinmu No.1 and Xinyu No.29 had the same distribution rule, leaves > stems, displaying obvious difference(P﹤0.01). The different cutting periods also had certain effects on the nutritional content of forage sorghum. The crude fiber content of the first cutting was higher than that of the second cutting, and the soluble sugar content of the first cutting was lower than that of the second cutting. The water content of Jinmu No.1 was 77.52%, the total sugar content was 13.61%, which were significantly higher those of Xinyu No.29.【Conclusion】Compared with Xinyu No.29, Jinmu No.1 has the characteristics of higher yield, higher crude protein, higher crude ash and higher water content, which means that it has better quality for silage. This research provides a scientific basis for the promotion and application of forage sorghum

Key words: multiple cropping; forage sorghum; Jinmu 1; maize; nutrients

摘要： 【目的】研究复播饲草高粱和玉米主要营养成分含量及分布规律,为提高饲料质量及新疆南疆饲料资源的开发利用提供科学依据。【方法】利用玉米品种新玉29号和饲草高粱晋牧1号在同等栽培管理条件下,分析麦后复播生产力、营养成分及分布规律。【结果】晋牧1号可以刈割两次,新玉29号收割一次。晋牧1号的合计鲜草产量高于新玉29号,合计产量分别达167 732.73 、76 276.27 kg/hm²,比新玉29号增产119.90%。新玉29号和晋牧1号叶片和茎部的粗蛋白质、可溶性总糖含量的分布规律一致,茎部﹥叶片。新玉29号和晋牧1号叶片和茎部的粗灰分、水分含量的分布规律一致,叶片﹥茎部并差异达极显著(P﹤0.01)。不同刈割期对饲草高粱的营养含量也有一定的影响。第一割茬的粗纤维含量高于第二茬、第一茬的可溶性总糖含量低于第二茬。晋牧1号的含水率高达在77.52%,总糖含量高达 13.61%,极显著高于新玉29号。【结论】晋牧1号和新玉29号的茎部和叶片等不同部位的营养成分及分布规律有差异。晋牧1号比新玉29号对比具有产草量、粗蛋白、粗灰分、水分含量高等优质饲料的特点。

关键词: 复播, 饲草高粱, 晋牧1号, 玉米, 营养成分

CLC Number:

S514

Zaituniguli Kuerban , TU Zhen-dong ,YE Kai , Aikebaier Yilahong. Comparative Study on Yield and Nutritional Components of Multiple Cropping Forage Sorghum and Corn[J]. Xinjiang Agricultural Sciences, 2019, 56(4): 660-666.

再吐尼古丽·库尔班, 涂振东, 叶凯, 艾克拜尔·伊拉洪. 复播饲草高粱和玉米产量及营养成分比较[J]. 新疆农业科学, 2019, 56(4): 660-666.

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