不同留茬高度对川饲苎2号产量与品质的影响研究

Effects of Different Stubble Heights on Forage Yield and Quality of Chuansizhu No.2

为探究留茬高度对川饲苎2号饲用产量及品质的影响,对不同留茬高度一年内不同批次样品的经济性状、产量性状和品质性状进行研究。结果表明:随着留茬高度的增加,川饲苎2号分株数与叶茎比显著增加;留茬对整株产量和整株粗蛋白产量无显著影响,但可以显著提高年叶产量,尤其第二次和第三次刈割时,留茬对该品种的增产效果十分明显;除了第二次刈割外,留茬可以改善饲用苎麻的营养品质。该研究为饲用苎麻高产优质和持续供给提供了理论依据。

This experiment explored the effects of different stubble heights on yield and quality of Chuansizhu No.2,and investigated the economic traits,yield traits and quality traits of different batches of Chuansizhu No.2 at different stubble heights in one year.The results showed that the stubble height increased the number of plants and the leaf-to-stem ratio of Chuansizhu No.2;stubble retention did not significantly affect the whole plant yield and crude protein yield,but significantly increased the annual leaf yield,especially in the second and third mowing.Except for the second mowing,crop retention could improve the nutritional quality of forage ramie.This research provides a theoretical basis for the high yield,high quality and sustainable supply of ramie for forage.