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成都地区浅层土壤中全量硼较为丰富,但是部分地区土壤有效硼较为缺乏。土壤中有效硼的含量与土壤有机质含量、pH值呈正相关,与土壤类型也有关系,而与硼全量关系不大。有效硼的缺乏主要是由于有机质缺乏、土壤pH值较低引起。黄壤地区酸性土壤种植油菜会有缺硼症状;水稻土和紫色土有效硼含量达到植物正常生长所需要的临界值,种植油菜就不缺乏硼,但是种植小麦仍然会缺硼。开展硼的区域生态地球化学评价时,不能只用土壤硼全量来评价其丰缺,还应该考虑用有效硼、有机质、pH值、土壤类型以及不同的植物种类等进行综合评价,更有利于指导农业生产土壤养分管理和选择种植适宜的植物。增加土壤有效硼含量的主要措施是施用硼肥,同时施用有机肥,酸性土壤适量施用石灰。
In the shallow soil in Chengdu, the total amount of boron is abundant, but the available boron in some areas is relatively scarce. Soil available boron content and soil organic matter content, pH value was positively correlated with the soil types are also related, while the total amount of boron has little to do. The lack of available boron is mainly due to the lack of organic matter and the low soil pH. There is a lack of boron in acid soil in yellow soil region. Boron and purple soil available boron content reaches the critical value required for normal growth of plants. There is no shortage of boron in rapeseed cultivation, but boron deficiency still remains in wheat planted. When carrying out the regional eco-geochemical evaluation of boron, it is not only possible to evaluate the abundance and deficiency of boron by the total amount of soil boron, but also to conduct comprehensive evaluation by using available boron, organic matter, pH, soil types and different plant species, which is more conducive to the guidance Agricultural production of soil nutrients management and choose to plant suitable plants. The main measures to increase the available boron content in soil are application of boron fertilizers and organic fertilizers at the same time. Appropriate amounts of lime are applied to acid soils.