摘要
研究了地下滴灌不同灌水量对当年种植紫花苜蓿的生长与产量的影响。结果表明:在本试验条件下,不同刈割时期对苜蓿株高影响较大的是灌水450 mm和375 mm;茎叶比、干鲜比随灌水量增加而增大;苜蓿全年干草产量表明,灌水可以显著增加苜蓿的产量,灌水375~500 mm产量随灌水量增加而增加,但灌水550 mm苜蓿产量低于对照,说明灌水量过多不利于产量的提高。
Effects of different irrigation amounts of subsurface drip irrigation on the growth and yield of alfalfa was studied in this paper. Results showed that under the experimental conditions, irrigation amount of 450 mm and 375 mm showed more influence on alfalfa plant height during different cutting period. The ratio of stem to leaf and dry weight to fresh weight increased with irrigation. Irrigation could significantly increase the yield of alfalfa, and yield under irrigation amount of 375 - 500 mm increased with irrigation amount increasing, while the alfalfa yield under irrigation amount of 550 mm was lower than the control group, indicating that overmuch amount of irrigation was not conducive to improvement of alfalfa yield.
作者
刘华
李东宁
杨东海
马晓霞
王占军
何建龙
俞鸿千
LIU Hua et al(Institute of Desertification Control Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan, Ningxia 75000)
出处
《宁夏农林科技》
2017年第1期13-14,31,共3页
Journal of Ningxia Agriculture and Forestry Science and Technology
基金
国家牧草产业技术体系盐池综合试验站项目(CARS-35-42)
宁夏农林科学院科技创新先导资金项目(NKYG-14-24)
关键词
地下滴灌
灌水量
紫花苜蓿
Subsurface drip irrigation
Irrigation amount
Alfalfa
