种植密度与施肥对巨菌草农艺性状和生产性能的影响  

Effets of Planting Density and Fertilization on the Agronomic Traits and Production Performance of Pennisetum spp.

作　　者：林兴生[1] 林辉[1] 林冬梅[1] 罗海凌[1] 胡应平[1] 林占熺[1] LIN Xing-sheng;LIN Hui;LIN Dong-mei;LUO Hai-ling;HU Ying-ping;LIN Zhan-xi(National Engineering Research Center of Juncao Technology,Fujian Agriculture and Forestry University,Fuzhou,Fujian Province 350002,China)

机构地区：[1]福建农林大学国家菌草工程技术研究中心,福建福州350002

出　　处：《草地学报》2018年第6期1525-1528,共4页Acta Agrestia Sinica

基　　金：福建省科技厅高校产学合作项目(2018N5001);国家林业公益性行业科研专项(201004019);国家菌草工程技术研究中心组建项目(2011FU125X11);福建省教育厅省级"2011菌草生态产业协同创新中心"资助

摘　　要：以巨菌草为试验草种,通过研究种植密度与施肥对其农艺性状和生产性能的影响,探明高产栽培技术,为其大面积推广应用提供科学依据。结果表明,随种植密度增大,巨菌草分蘖数、茎粗减小,株高、鲜草产量先升后降,适宜的种植密度为株行距80cm×60cm(20 833丛·hm^(-2));以有机肥或废菌料作基肥,适宜施肥量为3 000kg·hm^(-2);在基肥基础上进行尿素或复合肥追肥,适宜追肥量为750kg·hm^(-2)。Through studying the effects of planting density and fertilization on the agronomic traits and production performance of of Pennisetum spp.,the high yield cultivation technology was explored to provide scientific basis for its large-scale popularization and application.The results indicated that the optimum planting density was 20833 plants·hm^-2(row spacing 80 cm and plant spacing 60 cm).When organic fertilizer or used mushroom substrate was used as basic fertilizer,the optimal fertilization rate was 3000 kg·hm^-2.When urea or compound fertilizer was used as topdressing based on basic fertilizer,the optimal topdressing fertilization rate was 750 kg·hm^-2.

关 键 词：巨菌草 种植密度 施肥 农艺性状 生产性能 

分 类 号：S816.3[农业科学—饲料科学] S544.1[农业科学—畜牧学]