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采用土培方法研究冬小麦和水稻对不同生育时期施用过量氯的反应:结果表明,基施过量氯显著影响冬小麦出苗、分蘖,并最终降低籽粒产量,因此苗期为冬小麦对氯离子的敏感期,分蘖期施用过量氯显著降低移栽水稻分蘖,并延迟成熟,产量锐减,故分蘖早期为移栽水稻对氯离子的敏感期。在抽穗初期吸收在体内的氯离子主要集中在植株的下部叶片和茎节中,根和穗中含量很少,成熟期有相当一部分氯向上部叶片和穗部转移,穗中的氯主要集中在颖壳和穗轴中,籽粒中含量不多,过量氯离子对养分吸收具有不同程度的影响,影响养分之间的比例关系。
The soil culture method was used to study the response of winter wheat and rice to excessive chlorine application at different growth stages. The results showed that excess basal application of chlorine significantly affected the emergence and tillering of winter wheat and eventually decreased the grain yield. Therefore, the seedling stage was sensitive to chloride ion in winter wheat, Excessive use of chlorine at tillering stage significantly reduced transplanting rice tillering, and delayed maturity, sharp decline in production, so the early tillering stage for the transplanting of rice sensitive to chloride. In the early stage of heading, the chloride ions absorbed in the body mainly concentrated in the lower leaves and stems of plants, with little content in roots and ears, a considerable part of the chlorine in the mature leaves shifted to the upper leaves and ears, and the chlorine in the ears mainly concentrated in In the glume shell and the cob, content of the grain is small, excess chloride ion has different degrees of nutrient absorption, affecting the ratio of nutrients.