Ameliorative effect of K-type and Ca-type artificial zeolites on the growth of beets in saline and sodic soils
Ameliorative effect of K-type and Ca-type artificial zeolites on the growth of beets in saline and sodic soils
复制标题
K型和Ca型人造沸石对盐碱土中甜菜生长的改良作用
DOI：
10.1080/00380768.2002.10409253
复制
发表时间：
2002
影响因子：
2
通讯作者：
H. Fujiyama
中科院分区：
文献类型：
--
作者：
M. Yamada;Maki Uehira;Lee Song Hun;Kenji Asahara;T. Endo;A. Eneji;Sadahiro Yamamoto;T. Honna;Tahei Yamamoto;H. Fujiyama
摘要甜菜种植在不同交换性钠含量(ESP)的土壤上。以鸟取县沙丘土(CO)为材料，制备了盐碱土(SA，ESP=3.2)、盐碱土(SO，ESP=23)和盐碱土(HSO，ESP=78)。将K型和Ca型人工沸石(50g kg−-1)应用于这些土壤，以评价它们对土壤饱和浸出物的化学性质、水分亏缺、阳离子吸收和运移以及甜菜阳离子平衡的影响。在无沸石处理中，SA和SO促进了甜菜生长，而HSO抑制了甜菜生长。添加两种类型的沸石均能改善植物在所有土壤中的生长，尤其是HSO。K型沸石处理的土壤对沸石软土的相对干重为：CO 189%，SA 125%，SO 130%，HSO 222%。用钙型沸石处理的土壤，这一数值分别为169%、116%、132%和341%。在SA、SO和HSO中，K型沸石的加入增加了土壤饱和浸出物中K的浓度，从而增加了土壤对K的吸收。钙型沸石的加入增加了土壤饱和浸出物的钙浓度，增加了土壤对钾的吸收，从而增加了土壤的钙吸收。两种沸石的加入均增加了植物对K或Ca的吸收，减少了Na的运输，改善了植物的阳离子平衡。钙型沸石虽然提高了所有土壤的电导率，但并没有增加土壤的水分亏缺。结果表明，两种人工沸石均能改善甜菜在盐碱地上的生长性能，K型沸石也可用作钾肥。
Abstract Beets were grown on soils with various exchangeable sodium percentages (ESP). A saline non-sodic soil (SA, ESP = 3.2), a saline sodic soil (SO, ESP = 23), and a saline high sodic soil (HSO, ESP = 78) were prepared from Tottori sand dune soil (CO). K-type and Ca-type artificial zeolites (50 g kg−1) were applied to these soils in order to evaluate their effects on the chemical properties of saturation extracts of the soils, water deficit, cation uptake and transport, and cation balance of beet plants. In the zeolite-free treatments, beet growth was accelerated in SA and SO, but was suppressed in HSO compared with CO. The addition of both types of zeolites ameliorated plant growth in all the soils studied, especially HSO. The relative dry weight of the soils treated by the K-type zeolite to the zeolitefree soil was 189% for CO, 125% for SA, 130% for SO, and 222% for HSO. For the soils treated with the Ca-type zeolite, the values were 169, 116, 132, and 341%, respectively. In SA, SO, and HSO, the addition of the K-type zeolite increased the K uptake due to the increase of the K concentration of saturation extracts of soils. The addition of the Ca-type zeolite increased the Ca uptake due to the increase in the Ca concentration of the saturation extracts of soils which was accompanied by an increase in the K uptake. The increase in the uptake of K or Ca and decreased in the transport of Na by the addition of both types of zeolites improved the cation balance of the plants. The Ca-type zeolite did not increase the water deficit even though it increased the electric conductivity in all the soils. The results indicated that both types of artificial zeolites were able to improve the growth performance of beets in saline and sodic soils and that the K-type zeolite could be used as a K-fertilizer as well.