本省水稻田土壤之陰離子交換性質之研究
Other Title
Study on the Anion Exchange Properties of the Paddy Soils in Taiwan
Journal
農業研究
Journal Volume
22
Journal Issue
3
Start Page
204
End Page
212
Date Issued
1973-09-04
Date
1973-09-04
Author(s)
黎靜韻
Ching-Yuan Lai
Abstract
本研究將本省水稻田依其土類，亞類分別期作後，採集土壤樣本計266個，進行陰離子交換性質之分析，包括項目計有A. E. C.、置換性磷酸、氯與硫酸及數項主要理化性如機械分析、pH、有機質，全氮量及游離鐵等，試驗結果詳見附錄一與二，玆摘要如下：
1. 本省稻田各類土壤之陰離子交換能量（A. E. C.）見表一，以安山岩質沖積土之A. E. C.最高，紅棕壤次之，黃棕壤又次之，其餘為砂頁岩質沖積土，粘板岩質沖積土，而片岩質沖積土為最低。
2. 稻田土壤之質地與A. E. C.含量見表二，共平均趨勢與A. E. C.相同，質地愈粘重，A. E. C.含量愈高，反之則愈低。
3. 稻田土壤有機質與A.E.C.含量見表三，沖積土之平均數，其關係為正相關，紅棕壤及黃棕壤則略有差異。
4. 稻田土壤之游離鐵與A. E. C.見圖一二及三，三者均有正相關之關係，表上及亞表土範圍較狹，底土較寬。
5．稻田土壤因採集期不同，A. E. C.含量見表四，砂頁岩質沖積土及粘板岩質沖積土，均以第二期作後之土樣A. E. C.含量較高，安山岩質沖積土，紅棕壤及黃棕壤則適相反。
6. 稻田土壤A. E. C.與產量之統計如表五、不論表土，亞表土及底土之平均值均以低產量者其A.E.C.較高，反之高產量者則A.E.C.較低。
7. 本省稻田土壤之A. E. C.含量與地區性關係見表六，一般言之，北部稻田之A. E. C.含量最高，中部次之，南部又次之，東部較低。
This study 15 based on the study of 266 soil samples of paddy field in Taiwan which were classified according to great soil groups, sub-groups and time of sampling. The properties of anion exchange including PO4---, Cl- and SO4--, together with other physico-chemical properties such as mechanical analysis, pH value, organic matter and total nitrogen are taken into consideration. The results are shown on tables of the appendixes. They may be summarized as follows:
1. The A. E. C. of the various soil groups of paddy field in Taiwan are shown on table 1. The A. E. C.’s of different soils come in descending order as foolowing: Andersite alluvial soils, reddish brown latosols, yellowish brown latosols, sandstone and shale alluvial soils, slate alluvial soils, and the schist alluvial soils.
2. The relation of A. E. C. to the paddy soils is shown on table 2. It reveals the same trend as C. E. C. to the texture, i. e. higher A. E. C. is related tofine texture.
3. The A. E. C. and organic matter content of the paddy soils is shown on table 3. There is a proportional relationship between the A. E. C. and the alluvial soils. But it is something difference in latosols.
4. The correlation between the content of free iron and the A. E. C. is shown on figure 1, 2, and 3. It shows a proportional relationship between them.
5. The A. E. C.’s for the different time of sampling are shown on table 4. The A. E. C. of the sandstone alluvial soils and slate alluvial soils measured after the second crop is higher than after the first crop. But the A. E. C. of the andesite alluvial soils and the latosols is in reverse order.
6. The A. E. C. with the yield of rice is statistically analyzed and shown on table 5. It reveals that the higher the A. E. C the higher the yield of paddy soils.
7. The A. E. C.’s for the different localities are shown on table 6. In general, it shown that the soils of the northern part have the highest content of A. E. C. the central part the second, the southern part the third and eastern part the lowest one.
Publisher
農業試驗所
Type
journal article
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