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本文综合分析了我国土壤锌的含量和分布特点,指出我国长江以北地区存在大面积缺锌土壤,土壤有效锌含量多数<1,00ppm.较详细地论述了河南土壤锌的含量和地理分布规律,查明全省有六千万亩耕地严重缺锌,三千万亩耕地潜在缺锌.并介绍了土壤中锌的各种形态和锌肥的施用技术,通过在缺锌土壤上对玉米、水稻、棉花、小麦和果树等施用锌肥试验,均有一定的增产效果.
This paper comprehensively analyzes the content and distribution characteristics of zinc in soil in our country, and points out that there is a large area of zinc deficiency in the area north of the Yangtze River in China, and most of the available Zn in the soil is less than 1, 000 ppm.Characteristics and content of zinc in soil and geographical distribution , Identified 60 million mu of cultivated land in the province is seriously lack of zinc, 30 million mu of arable land potential zinc deficiency.And the various forms of zinc in the soil and the application of zinc fertilizer technology, zinc deficiency in the soil through the corn, Rice, cotton, wheat and fruit trees and other zinc fertilizer test, have a certain effect of increasing yield.