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黄淮海平原盐渍土有机质消长规律的研究
引用本文:严慧峻,刘继芳,张锐,单秀枝,魏由庆,许建新,高峻岭,马卫萍,殷光兰,安文钰. 黄淮海平原盐渍土有机质消长规律的研究[J]. 植物营养与肥料学报, 1997, 3(1): 1
作者姓名:严慧峻  刘继芳  张锐  单秀枝  魏由庆  许建新  高峻岭  马卫萍  殷光兰  安文钰
作者单位:中国农业科学院土壤肥料研究所 北京;100081;中国农业科学院德州盐碱土改良试验站 德州;253000
摘    要:7年微区试验表明,在黄淮海季风区内陆盐渍土一年两熟种植制度下,农田土壤有机质平衡含量约为1.50%。在相同的气候,土壤基础肥力,土壤质地条件下,采取不同措施,土壤有机质积累速率不同,到达土壤有机质平衡含量的时间不同。施用碳氮比大,木质素含量高的有机肥,土壤有机质积累快;施用同种有机肥,土壤有机质在达到平衡含量前,有机质的积累量与施肥量呈直线相关。为满足黄淮海平原农田稳产高产和盐渍上抑盐对土壤有机质含量的要求,采用秸秆直接还田,秸秆过腹还田或棉田种植冬牧草,发展畜牧业,增加优质粪肥施用量是提高盐渍土土壤有机质有效措施。

关 键 词:有机质  有机肥  盐渍土  黄淮海平原  有机质  有机肥  盐渍土  黄淮海平原

STUDY ON THE REGULAR INCREASE AND DECLINE OF ORGANIC MATTER IN SALT-AFFECTED SOILS OF HUANGHUAIHAI PLAIN
Yan Huijun,Liu Jifang,Zhang Rui,Shan Xiuzhi,Wei Youqing Xu Jianxin Gao Junling Ma Weiping Yin Guanglan An Wenyu. STUDY ON THE REGULAR INCREASE AND DECLINE OF ORGANIC MATTER IN SALT-AFFECTED SOILS OF HUANGHUAIHAI PLAIN[J]. Plant Nutrition and Fertilizer Science, 1997, 3(1): 1
Authors:Yan Huijun  Liu Jifang  Zhang Rui  Shan Xiuzhi  Wei Youqing Xu Jianxin Gao Junling Ma Weiping Yin Guanglan An Wenyu
Affiliation:Soils and Fertilizers Instttute. CAAS;Beijing- 100081; Dezhou Experimental Station of Salt-affected Soil Improvement.CAAS. 253000
Abstract:A 7-year miniplot experiment showed that under a cropping system with two harvests in one year and on salt-affected in land soils, the equilibrium content of their organic matter was about 1. 5% in the monsoon climatic region of Huang-huaihai Plain. But the length of time, within which soil organic matter content reached equilibrium, and the rate of accumulation of soil organic matter were different owing to different measures adopted in the same conditions of climate, basal soil fertility and soil texture. The soil organic matter accumulated more rapidly with higher C /N ratio organic manures which contained more lignin. Before its attending to the equilibrium the soil organic matter was linearly correlated with the quantity of organic manures applied.Therefor. in order to meet the requirements of high-stable crop yield in Huang-huaihaiPlain and to control the salt accumulation in the soil surface, the efficoient measures for rapid increase in the organic matter are to lncorporate crop straw into the soil, to apply dung-manure or plant winter -grazing crops in the cotton fields to develop the animal husbandry and to increase the amount of good quality manure.
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