| Effects of Irrigation with Well Water on Chemical Characteristics of a Weakly Alkaline Soil Used as Rice Field |
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| 引用本文： | GONGZhen－ping ZHAOYan－zhong 等. Effects of Irrigation with Well Water on Chemical Characteristics of a Weakly Alkaline Soil Used as Rice Field[J]. 东北农业大学学报(英文版), 2002, 9(1): 22-28 |
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| 作者姓名： | GONGZhen－ping ZHAOYan－zhong 等 |
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| 作者单位： | NortheastAgriculturalUniversityHarbinHeilongjiang150030,PRC |
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| 摘 要： | This paper discussed the effects of irrigation with well water on the salinity and pH of a weakly alkaline paddy soil in Fjin of Helongjiang Province in the north-eastern part of China.It has been found that after seven years the accumulation of total soluble satls did not occur and that the pH of 0-15cm layer fell down from 7.92-8.30,to 6.76-7.45.and that the content of anion HCO3^- and its proportion in the total soluble anions have fallen down.Conversiton from paddy soil to upland restored the pH of soil.exchangeable sodium.ESR(exchangeable sodium ratio)to their original levels of upland fields respectively.
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| 关 键 词： | 井水灌溉 弱碱土 水稻田 土壤化学特性 pH |
Effects of Irrigation with Well Water on Chemical Characteristics of a Weakly Alkaline Soil Used as Rice Field |
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| GONG Zhen-ping,ZHAO Yan-zhong,ZU Wei,SUN Cong-shu. Effects of Irrigation with Well Water on Chemical Characteristics of a Weakly Alkaline Soil Used as Rice Field[J]. Journal of Northeast Agricultural University, 2002, 9(1): 22-28 |
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| Authors: | GONG Zhen-ping ZHAO Yan-zhong ZU Wei SUN Cong-shu |
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| Affiliation: | Northeast Agricultural University Harbin Heilongjiang 150030 PRC |
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| Abstract: | This paper discussed the effects of irrigation with well water on the salinity and pH of a weakly alkaline paddy soil in Fujin of Heilongjiang Province in the north-eastern part of China. It has been found that after seven years the accumulation of total soluble salts did not occur and that the pH of 0～15 cm layer fell down from 7.92～8. 30 to 6. 76～7. 45,and that the content of anion HCO-3 and its proportion in the total soluble anions have fallen down. Conversion from paddy soil to upland restored the pH of soil ,exchangeable sodium,ESR(exchangeable sodium ratio) to their original levels of upland fields respectively. |
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| Keywords: | weakly alkaline soil rice cultivation with well water total soluble salts pH |
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