| 江苏省徐淮地区土壤中微量元素供给情况及其与作物生长的关系 |
| |
| 引用本文： | 刘铮,朱其清,韩玉勤,唐丽华.江苏省徐淮地区土壤中微量元素供给情况及其与作物生长的关系[J].土壤学报,1979,16(3):245-256. |
| |
| 作者姓名： | 刘铮 朱其清 韩玉勤 唐丽华 |
| |
| 作者单位： | 中国科学院南京土壤研究所;中国科学院南京土壤研究所;中国科学院南京土壤研究所;中国科学院南京土壤研究所 |
| |
| 摘 要： | 江苏北部徐州、淮阴两地区的大部分土壤是黄河、淮河冲积物发育的石灰性冲积土,小部分是沭河、沂河冲积物发育的非石灰性冲积土和褐土等(江苏省农业厅,1957)。为了探索施用微量元素肥料提高作物产量的途径,于1972年起在徐州、淮阴地区搜集土壤标本,测定微量元素含量、明确微量元素含量和分布规律,对微量元素的供给情况和可能需要微量元素肥料的土壤(地区)作出估计,同时布置田间试验进行验证。
|
STATUS OF MICROELEMENTS OF SOILS AND THE CROP GROWTH IN XUZHOU AND HUAIYIN DISTRICTS OF JIANGSU |
| |
| Liu Zheng,Zhu Qi-qing,Han Yu-qing and Tang Li-hua.STATUS OF MICROELEMENTS OF SOILS AND THE CROP GROWTH IN XUZHOU AND HUAIYIN DISTRICTS OF JIANGSU[J].Acta Pedologica Sinica,1979,16(3):245-256. |
| |
| Authors: | Liu Zheng Zhu Qi-qing Han Yu-qing and Tang Li-hua |
| |
| Institution: | Nanjing Institute of Soil Science, Academia Sinica;Nanjing Institute of Soil Science, Academia Sinica;Nanjing Institute of Soil Science, Academia Sinica;Nanjing Institute of Soil Science, Academia Sinica |
| |
| Abstract: | During past years the status of the trace elements in soils of guzhou and Huaiyin districts of Jiangsu province were studied. The main soil type in these districts is yellow fluviogenic soil derived from the alluvium of the yellow river. Analytical results revealed that the soils of these districts are very poor in manganese, molybdenum and zinc, but rich in available boron and copper. The total content of manganese in soils of these districts varies from 262-662 ppm with an average content of 425 ppm. The exchangeable manganese can not be detected in the surface soil of forty-three percent of the analyzed samples. Forty-nine percent of the easily reducible manganese is lower than the critical value 100 ppm. The molybdenum content ranges from 0.4 to 2.6 ppm with an average of 0.8 ppm. The available molybdenum content is very low and that in the surface soil of ninety percent of the samples is below the critical value (0.15 ppm, extracted by the Grigg's solutibn). The content of boron varies from 15-72 ppm with an average of 47 ppm. The water soluble boron is very high due to the salinization. The available zinc extracted by DTPA solution is also very low. Ita content of eighty-eight percent of the analyzed samples ig lower than the critical value (0.5 ppm). The available copper extracted by DTPA solution is higher than the critical value. Field experiments were carried out in sixteen counties in coorperatibn with local agricultural institutions and people's commons. Fertilization with manganese brings about the increase im yields of wheat, cotton, sugar beet, maize, winter rape, sweet potato, soybean, pea, peanut and several leguminous green manure crops. Mo-fertilization leads to an increase in yield of leewminous crops and Zn-fertilization leads to the increase in yields of paddy and maize. Response of sugar beet and peanut to boron fertilizer is confirmed also. |
| |
| Keywords: | |
|
| 点击此处可从《土壤学报》浏览原始摘要信息 |
| 点击此处可从《土壤学报》下载免费的PDF全文 |
|
