中苜2号苜蓿高产配方施肥的研究  

The research of “ZhongMu No.2”alfalfa in high yield and fertilizer

作　　者：肖燕子[1] 格根图[1] 吕世杰[1] 尹强[2] 米福贵[1] 

机构地区：[1]内蒙古农业大学生态环境学院,呼和浩特010019 [2]中国农业科学院草原研究所,呼和浩特010010

出　　处：《干旱区资源与环境》2016年第9期183-189,共7页Journal of Arid Land Resources and Environment

基　　金：国家公益性行业(农业)科研专项项目(201403048-5)资助

摘　　要：为解决苜蓿规模化技术研发滞后于产业发展等关键性问题,采用测土配方施肥试验,结合理论优化模型和计算机模拟寻优技术,筛选出高产苜蓿的最佳土肥配比技术。结果表明:田间测产与4种模型筛选出,经济效益最佳施肥组合为:当P肥31.70kg/hm^2(Ca(H^2PO_4)_2·2H^2O为159 kg/hm^2)、K肥86.05kg/hm^2(K_2SO_4为172 kg/hm^2)、N肥73.08kg/hm^2(CO(NH^2)_2为159 kg/hm^2)时,产量为12348.66 kg/hm^2,肥料投资较低(1171.8元/hm^2),与最高肥料投资相比低386.3元/hm^2,产投比为21.08。To solve the problem that there is lag between the technical study of alfalfa scale and the industrial development, we took the experiment in formulated fertilization, which combined the computer simulation and optimum design with the the optimization theory, to select the optimum formulated fertilization for high production of alfalfa. The result shows that the optimum formulated fertilization is 31.70kg/hm2 P fertilizer（ 159 kg/hm2 Ca （ H2PO4 ） 2 · 2H2O）, 86.05kg/hm2 K fertilizer（ 172 kg/hm2 K2SO4） and 73.08kg/hm2 N fertilizer（ 159 kg/hm2 CO（NH2） 2, the production is 2348.66 kg/hm2, while the cost of fertilizer is 1171.8 yuan/hm2 which less 386. 3 yuan/hm2 than the highest fertilizer investment, and the input - output ratio is 21.08.

关 键 词：苜蓿 产量 施肥组合 经济效益 

分 类 号：S812[农业科学—草业科学]