草业科学2011，Vol.28Issue(9)：1666-1670,5.
配方施肥对一年生黑麦草产草量及品质的影响
Effect of fertilization on the yield and forage quality of annual ryegrass
摘要
Abstract
A field trial was carried out in Hubei province, central area of China to determine the effect of fertilization on the yield and forage quality of annual ryegrass （Lolium multiflorum） by comparing crude protein （CP）, ether extract （EE）, nitrogen free extract （NFE）, acid crude fiber （CF）, crude ash （CA） and gross energy （GE）. The results of this study showed that fertilizer recommendation 1 （N450P45 K90） and fertilizer recommendation 2 （N540P180K360） significantly improved the fresh forage yield of ryegrass, which were 2.6 times and 3.1 times higher than that of CK, respectively. The amount of dry matter accumulation per day firstly increased, and then decreased with the growth of ryegrass, and achieved the maximum with 223.9 kg/（hm^2 · d） at the 130 d after sowing. The yield of fertilizer recommendation 2 increased by 12.0% compared to that of fertilizer recommendation 1. Fertilization increased the content of P, Ca, CP and EE in ryegrass, and decreased the content of NFE. Compared to fertilizer recommendation 1, fertilizer recommendation 2 improved the content of CP, EE and CA, while decreased the content of CF and NFE of three times clipped ryegrass. The fertilization significantly increased yield of CP, EE, CA, CF, NFE and GE, indicating that fertilizer recommendation 2 did better than fertilizer recommendation 1.关键词
配方施肥/一年生黑麦草/产量/营养品质Key words
fertilizer recommendation/Lolium multiflorum/yield/forage quality分类
农业科技引用本文复制引用
李小坤,鲁剑巍,刘晓伟,刘威,潘福霞,魏云霞..配方施肥对一年生黑麦草产草量及品质的影响[J].草业科学,2011,28(9):1666-1670,5.基金项目
公益性行业（农业）科研专项 （）
国际植物营养研究所（IPNI）国际合作项目 （）
华中农业大学科技创新项目 （）
