中国生态农业学报（中英文）2026，Vol.34Issue(1)：70-80,11.DOI:10.12357/cjea.20240815
不同生态区和播种量对饲用谷子产草量和营养品质及生态化学计量比的影响
Effects of different ecological regions and seeding rates on forage yield,nutritional quality,and ecological stoichiometry of forage millet
摘要
Abstract
Forage millet is a dual-purpose grain and feed crop characterized by drought tolerance and strong adaptability.To investig-ate the effects of different ecological regions and seeding rates on its yield,quality,and ecological stoichiometry,experiments were conducted in 2023 across Hulun Buir(Inner Mongolia),Dongying(Shandong),and Zhaotong(Yunnan),with seeding densities of 16.5 and 19.5 kg·hm2.The results indicate that 1)different ecological regions significantly influences the yield and quality of forage millet.Hulun Buir and Dongying showed higher dry weights,relative feeding values,and net lactation energy than Zhaotong,which had a higher cellulose content.2)Crude protein content was positively correlated with the relative feeding value,nitrogen content,phosphorus content,and phosphorus:potassium ratio,but negatively correlated with cellulose content.The relative feeding value and net lactation energy were also negatively correlated with cellulose content.3)Soil nitrate nitrogen and available phosphorus were positively correlated with yield,crude protein,and relative feeding value but negatively correlated with neutral detergent cellulose.In summary,forage millet exhibited higher yields and superior nutritional quality in the Hulun Buir and Dongying areas than in Zhao-tong,indicating that these areas are more suitable for large-scale cultivation.In contrast,the yield and quality in Zhaotong were relat-ively low;therefore,the application of nitrogen and phosphorus fertilizers or strategies to improve nutrient-use efficiency to enhance yield and quality is required.This study provides a theoretical basis for optimizing regional cultivation and improving the quality of forage millet.关键词
饲用谷子/种植地点/产量/营养品质/生态化学计量Key words
forage millet/planting location/yield/nutritional quality/ecological stoichiometry分类
农业科技引用本文复制引用
陈亚伟,薄玉琨,宋春旭,朱峰,郑春燕..不同生态区和播种量对饲用谷子产草量和营养品质及生态化学计量比的影响[J].中国生态农业学报（中英文）,2026,34(1):70-80,11.基金项目
国家重点研发计划项目(2022YFD19900301,2022YFF1302801)、国家重点研发计划青年科学家项目(2021YFD1900200)和张家口市重点研发计划项目(2022J001)资助 This study was supported by the National Key Research and Development Project of China(2022YFD19900301,2022YFF1302801),the Young Sci-entists Project of National Key Research and Development Program of China(2021YFD1900200),and the Key R&D Program of Zhangjiakou City(2022J001). （2022YFD19900301,2022YFF1302801）
