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宁南旱区有机培肥对土壤水分和作物生产力影响的研究
引用本文:苏秦,贾志宽,韩清芳,李永平,王俊鹏,杨宝平.宁南旱区有机培肥对土壤水分和作物生产力影响的研究[J].植物营养与肥料学报,2009,15(6):1466-1469.
作者姓名:苏秦  贾志宽  韩清芳  李永平  王俊鹏  杨宝平
作者单位:1.西北农林科技大学干旱半干旱农业研究中心,农业部旱地作物生产与生态重点开放实验室,陕西杨陵712100
基金项目:国家科技支撑课题,123 
摘    要:通过对宁南旱区连续两年的有机肥定位试验,研究了不同肥力梯度下有机培肥对土壤水分及作物生产力的影响。结果表明,施肥量为高、中、低处理下,第1年种胡麻,成熟期的贮水量在0—100 cm土层分别比对照处理高13%、10%和0.9%,胡麻产量分别比对照处理高11%、10%和5%,土壤水分利用效率分别比对照处理高30%、29%和11%;在第2年种冬小麦,成熟期的贮水量在0—100 cm土层分别比对照处理高16%、14%和7%,冬小麦产量比对照处理高18%、25%、和13%,土壤水分利用效率分别比对照处理高14%、15%和6%。2年结果看出,施用有机肥可提高土壤含水量,利于土壤的扩蓄增容,且对提高作物产量和土壤水分利用效率有显著效果。

关 键 词:宁南旱区    有机培肥    水分动态    作物生产力
收稿时间:2008-12-31

Effects of organic fertilization on soil moisture and crop productivity in semi-arid areas of southern Ningxia
SU Qin,JIA Zhi-kuan,HAN Qing-fang,LI Yong-ping,WANG Jun-peng,YANG Bao-ping.Effects of organic fertilization on soil moisture and crop productivity in semi-arid areas of southern Ningxia[J].Plant Nutrition and Fertilizer Science,2009,15(6):1466-1469.
Authors:SU Qin  JIA Zhi-kuan  HAN Qing-fang  LI Yong-ping  WANG Jun-peng  YANG Bao-ping
Institution:1.The Arid and Semi-arid Areas Research Center of Agriculture,Northwest A&F University/ Key Laboratory of Crop Production and Ecology of Dryland,Ministry of Agriculture,the People’s Republic of China,Yangling,Shaanxi 712100,China
Abstract:Effects of organic fertilization on soil moisture and crop productivity were studied using a two year field experiment in semi-arid areas of southern Ningxia. The results show that soil water storages at 0-100 cm layer for the high-fertilizer, middle-fertilizer and low-fertilizer treatments are about 13%, 10% and 0.9% higher than that of the CK at the maturity stage of oil flax, respectively, the oil flax yields of the three treatment are 11%, 10% and 5% higher than that of the CK, and the water use efficieneies are 30%, 29% and 11% higher than that of the CK in the first experiment year, 2007.For the 2008 crop year, the soil water storages are 16%, 14% and 7% than that of the CK at the maturity stage of winter wheat, the yields of winter wheat are 18%, 25% and 13% higher than that of the CK, and the water use efficiencies are 14%, 15% and 6% higher than that of the CK. The two-year study indicates that application of organic fertilizers can im-prove soil moisture, expand soil water storage capacity, and increase crop yield and soil water use efficiency significantly.
Keywords:semi-arid areas of southern Ningxia  organic fertilization  soil water dynamics  crop productivity
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