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liao he xia you bin hai di qu shui dao xian shui guan gai ji nai yan lin jie nong du de yan jiu xian shui guan gai tiao jian xia dui yan zi xing shui dao tu yan fen dong tai de ying xiang
Author(s): 
Pages: 7-11
Year: Issue:  4
Journal: Reclaiming and Rice Cultivation

Keyword:  灌溉条件土壤盐分动态咸水灌溉水稻土临界浓度土壤含盐量水稻收割淡水土壤盐分含量盐渍;
Abstract: <正> 一、前言辽河三角洲滨海盐土,经过长期的种稻改良,土壤盐分已显著降低,平均一米土层含盐量由过去的0.3%~2.0%降至0.1%~0.3%。在水稻苗期,耕层含盐量均达到水稻耐盐临界浓度以下,使滨海盐碱土演变为盐渍型水稻土。如采用咸水灌溉,对盐渍型水稻土盐分状况的影响如何,尚
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