摘要： 河北省土壤全锌平均73ppm,低于全国平均值(100ppm),高于世界平均值(50ppm).土壤有效锌平均0.53ppm,全省78.8%的耕地土壤有效锌低于临界缺乏值0.50ppm.微量元素锌是横亘在河北省农林牧业生产面前的潜在障碍因子.本文讨论了成土母质、土壤机械组成、土壤有机质、土壤碳酸钙、土壤有效磷以及水热条件对土壤有效锌消长与分布的影响,确定了它们之间的统计学数量关系.编制了土壤有效锌分布图.根据锌肥的经济效益拟定了土壤有效锌利用分区.
关键词:
土壤锌,
消长规律,
河北
Abstract: The average of soil total zinc of Hebei province is 73ppm, below the average of the counrty (l00ppm) , above that of the world (50ppm) . Soil zinc available averages 0.53ppm.The soil available zinc content of 78.8% cultivated land of this province is below the critical value (0.50ppm). Thus,microelement zinc has become a potential limiting factor to the farming and animal husbandry.The effects of soil parent material, texture, organic matter, CaCO3, available phosphorous and soil water and temperature on the growth and decline and the distribution of available zinc were discussed in this paper, and so statistical data of relationship between them were established and available zinc distribution map was made. According to the economic benefit of zinc-fertilizer, the utilization demarcations of soil available zinc were defined.
Key words:
Soil zinc,
Grows and decline,
Hebei
孙祖琰, 周起如, 孙全先, 徐长金, 马文奇. 河北土壤锌的含量分布消长规律与利用分区[J]. 华北农学报, 1986, 1(3): 91-97. doi: 10.3321/j.issn:1000-7091.1986.03.015.
Sun Zuyan, Zou Qiru, Sun Quanxian, Xu Changjin, Ma Wenqi. SOIL ZINC DISTRIBUTION-GROWTH AND DECLINE UTILIZATION DEMARCATIONS OF HEBEI PROVINCE[J]. ACTA AGRICULTURAE BOREALI-SINICA, 1986, 1(3): 91-97. doi: 10.3321/j.issn:1000-7091.1986.03.015.