不同刈割周期对热研11号黑籽雀稗产草量及品质的影响

Effect of Different Clipping Frequencies on the Yield and Quality of Paspalum atratum Bra.cv.Reyan No.11

研究不同刈割周期对热研11号黑籽雀稗(Paspalum atratum cv.Reyan No.11)产草量及品质的影响。结果表明:间隔90d刈割周期粗蛋白质产量最高,达3897 kg/hm2;间隔75d刈割周期鲜草产量最高(135.8t/hm2);间隔120d刈割周期干草产量最高(38.6t/hm2);间隔120d刈割周期株高生长动态和分蘖数均高于其它处理;在品质方面,间隔90d刈割周期黑籽雀稗品质最好,粗蛋白质含量最高(13.13%),粗纤维含量最低(25.79%)。

A study on the effect of different clipping frequencies on the yield and quality of Paspalum atratum cv. Reyan No.11 indicated that： At the intervals of 90 days, it＇s crude Protein yield was the highest （3879 kg/hm^2）; at the intervals of 75 days, it＇s fresh forage yield of was the highest reaching 135.8t/hm^2; at the intervals of 120 days, it ascended the hay yield to 38.6t/hm^2, topping all. At the interval of 120 days, it was also higher than other treatments in growth trend of plant height and quantity of tiller. At the intervals of 90 days it was the best in quality, especially CP is highest （13.13%）, CF is lowest （25.79%）.