文献类型： 外文期刊

第一作者： Sun, Baiquan

作者： Sun, Baiquan;Dong, Hongxia;Li, Qimeng;Yu, Lijie;Guo, Changhong;Han, Tianfu;Sun, Baiquan;Yuan, Shan;Naser, Mahmoud;Zhou, Yanfeng;Jia, Hongchang;Yu, Yang;Yao, Xiangyu;Wu, Tingting;Song, Wenwen;Jiang, Bingjun;Dong, Hongxia;Zhang, Chunlei;Sapey, Enoch;Wang, Peiguo;Sun, Yanhui;Zhang, Junquan;Zhang, Lixin;Li, Qimeng;Xu, Cailong;Wu, Cunxiang;Sun, Shi;Han, Tianfu;Naser, Mahmoud;Yu, Yang;Zhang, Chunlei;Sapey, Enoch;Jia, Xin

作者机构：

关键词： Soybean; Varieties; Vegetative plants; Forage; Nutritional value; Yield potential; Photoperiod

期刊名称：FIELD CROPS RESEARCH （ 影响因子：5.6； 五年影响因子：6.1 ）

ISSN： 0378-4290

年卷期： 2024 年 317 卷

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收录情况： SCI

摘要： Context: The rising demand for animal protein has intensified forage shortages and restricted pasture availability, underscoring the critical need for effective dual-purpose animal feeds. Objective: This study aims to evaluate the potential of vegetative soybeans as animal feed by assessing their nutritional value and productivity. Specifically, it explores the feasibility of using late-maturing soybean varieties, adapted to low latitudes, as forage in high-latitude regions and examines the impact of different planting dates on their growth and effectiveness during limited growing seasons. Methods: To achieve these objectives, a series of field and controlled experiments were conducted. The first experiment assessed 418 mid-maturing soybean varieties from the Huang-Huai-Hai Basin in China for their nutritional value as forage during 2020 and 2021. The second experiment tested late-maturing and photoperiodsensitive soybean varieties, including "ZGDD" and the methionine-enhanced material "Ox-CGS," under tropical conditions with extended daylight. The third experiment evaluated forage soybeans sown on June 19th, July 14th, and August 8th, 2022, to determine their yield and protein content. Results: Results showed that the first experiment yielded an average protein content of 24.7 %, ether extract content of 1.9 %, neutral detergent fiber content of 41.9 %, and acid detergent fiber content of 27.3 %, with a relative feeding value of 153, surpassing local standards for high-quality leguminous forage. The second experiment demonstrated that extended daylight increased crude protein yield by 3.7 times compared to Chinese soybean seed yields, and "Ox-CGS" showed a 24.2 % increase in methionine content. The third experiment revealed that forage soybeans achieved a crude protein yield of 0.95 t/ha within 60 days, exceeding the 2022 average of 0.68 t/ha for seed soybeans in China. Conclusions: The findings indicate that photoperiod-sensitive soybeans can be effectively used as forage over extended periods, utilizing artificial lighting or cultivation in higher latitudes, and that short growth cycles enhance crude protein accumulation.

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