刈割强度对闽牧42饲用杂交甘蔗的影响  

Effect of cutting intensity on Minmu 42,a forage variety of sugarcane hybrid

作　　者：林洁荣[1] 

机构地区：[1]福建农林大学动物科学学院,福建福州350002

出　　处：《福建农林大学学报（自然科学版）》2005年第4期514-517,共4页Journal of Fujian Agriculture and Forestry University:Natural Science Edition

基　　金：国家科技攻关项目(96-016-02-03)

摘　　要：在60 cm×43 cm的种植密度下,研究刈割强度对闽牧42饲用杂交甘蔗的影响.结果表明:年割3次的年均鲜草产量达234.51 t.hm-2,干草产量达37.55 t.hm-2,显著高于年割5-6次的鲜草产量(123.71 t.hm-2)和干草产量(19.99 t.hm-2)(P<0.01);年割5-6次的平均分蘖数为43.4个,与年割3次的分蘖数相比,提高了60.15%(P<0.01);年割3次的粗蛋白质、可消化有机物总量分别为2.51和16.16 t.hm-2,高于年割5-6次的粗蛋白质总量(1.90 t.hm-2)和可消化有机物总量(9.69 t.hm-2).表明闽牧42饲用杂交甘蔗年割3次比年割5-6次好.Under 60 cm × 43 cm of plant density, the effect of cutting intensity on Minmu 42, a forage variety of sugarcane hybrid, was studied. Cutting 3 times annually, the average fresh grass yield was 234.51 t ·hm^-2 and the hay yield was 37.55 t ·hm^-2, significantly higher than those cutting 5 to 6 times annually, which were 123.71 and 19.99 t ·hm^-2 respectively （P 〈0.01）. Cutting 5 to 6 times annually, the average tillers were 43.4, 60.15% more than those cutting 3 times annually. The total contents of crude protein and digestible organic matter in the forage cutting 3 times annually amounted to 2.51 t ·hm^-2 and 16.16 t ·hm^-2, higher than 1.90 and 9.69 t ·hm^-2 of those cutting 5 to 6 times annually.

关 键 词：刈割强度 闽牧42 牧草产量 

分 类 号：S543.9[农业科学—作物学]