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全世界除沙漠外约有34.04亿公顷盐土。我国大约有3亿多亩盐碱地。有些地区,从水资源、气候和生态等条件来看均适宜于水稻生产,但由于土壤的盐渍化而未能种植。在非农业占地愈来愈多,而耕地愈来愈少的今天,利用盐碱荒地的问题日益受到人们的重视。修建大规模的水利设施虽可引淡洗盐,但要消耗大量财力和资源。而选育和利用耐盐作物,却可以较好地解决这一问题。培育耐盐水稻品种的研究始于1940年。斯里兰卡曾繁殖过耐盐水稻品种 Pokkali,并在1945年予以推广。印度也是较早开展水稻耐盐育种的国家。我国从70年代开始这项工作,并取得了一定成绩。如江苏省农科院于1980年从一印度农家品种“M_(114)”中选得了高耐盐籼
There are about 3.404 billion hectares of saline earth in the world except the desert. There are about 300 million mu of saline land in our country. Some areas are suitable for rice production from the aspects of water resources, climate and ecology, but they are not planted due to salinization of the soil. In non-agricultural area more and more, and less and less cultivated land today, the problem of utilizing saline-alkali wasteland has drawn more and more attention. Although the construction of large-scale water conservancy facilities can lead salt light wash, but consume a lot of financial resources and resources. Breeding and using salt-tolerant crops can solve this problem. Research to cultivate salt-tolerant rice varieties began in 1940. Sri Lanka had breed salt tolerant rice variety Pokkali and was promoted in 1945. India is also the early country to carry out rice salt-resistant breeding. Our country started this work from the 1970s and achieved some success. For example, Jiangsu Provincial Academy of Agricultural Sciences in 1980 from India, a variety of farmers “M_ (114)” selected high salt tolerant indica