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本研究的目的是比较刈割频率和施氮水平对三个不同的牛仔草品种——Bigalta牛仔草、Redalta牛仔草和Floralta牛仔草的季节产量和品质的反应。实验结果表明牛仔草可以产生大量的干物质,特别是施浓氮肥时更是如此,增加两次刈割周期可以提高干物质产量但是却降低了有机质的体外消化率和粗蛋白质浓度。Bigalta牛仔草的品质要优于Redalta牛仔草和Floralta牛仔草。
The purpose of this study was to compare the response of cutting frequency and nitrogen level to the seasonal yield and quality of three different cowboy varieties, Betalta, Redalta and Floralta. The experimental results show that the cowboy grass can produce a large amount of dry matter, especially when applying nitrogenous fertilizers. Increasing the mowing cycle can increase the dry matter yield but reduce the in vitro digestibility of organic matter and the crude protein concentration. Bigalta is better than Redalta and Floralta.