數種土壤改良劑對臺灣土壤性質之影響(I)Zeolite對土壤理化性質之影響
Other Title
Effects of Soil Conditioners on Taiwan Soils (I). Effects of Zeolite on Physico-Chemical Properties of Soils
Journal
農業研究
Journal Volume
16
Journal Issue
1
Start Page
50
End Page
57
Date Issued
1967-03-05
Date
1967-03-05
Author(s)
徐水泉
王新傳
林登鴻
S.C. Hsu
S.T. Wang
T.H. Lin
Abstract
為探究Zeolite對本省土壤理化性質之影響，以提供檢討Zeolite在本省作為土壤改良劑之可能性之依據，特選擇本省主要耕地土壤五種，就每公斤風乾土壤，添加不同量（0.8g，4.0g，8.0g，16g及80g）之Zeolite，另設無加用者為對照，測定各處理土壤之有關理化性質，如土壤之弱酸可溶矽，及游離鐵含量，pH，陽離子交換能量（C.E.C），吸濕係數，最大容水量及有效水分等之變化。
分析結果顯示Zeolite加用對土壤之pH，游離鐵含量均無顯著影響，而對弱酸可溶矽，雖稍有增加效果，但仍未達到可作為矽肥料之程度。土壤之C.E.C隨Zeolite加用量之增加而有增加之趨勢，在不同土壤同處理間之C.E.C增加量，均相差無幾，但對原土壤C.E.C之增加比例，即原土壤本身之C.E.C較小之粗質地土壤之增加率比細質地土壤高。對土壤水分保持力之影響，即吸濕係數，最大容水量及有效水分也有隨Zeollte加用量之增加而增加之趨勢，對不同土壤之有效水分之影響言，除中壢粘土之紅壤外，其他土壤之有效水分增加量及增加率，均在粗質地的效果，比細質地者為高。
由上述結果Zeolite之使用，可提高土壤C.E.C及有效水分，而其效果均在粘土含量較低之坋質及砂質土壤較大，惟有效水分之增加量不多，故Zeollte之主要效果，似以增加土壤C.E.C為主。
關於Zeolite使用之經濟價值，及對各種作物生長之影響仍須待將來，各種作物栽培試驗果結，始能明暸。
The effect of Zeolite on physico-chemical properties of the soils was studied by applying different amounts of Zeolite to several soils of crop land. The result was found as follows:
Soil reaction and free iron content in soils were not affected, where as, soluble silica was slightly increased by applying a large amount (80g/kg) of Zeolite.
Cation exchange capacity (CEC), Hygroscopic coeffient, Moisture holding capacity and Moisture availability of the soils were increased with increase of amount of Zeolite applied, although Moisture holding capacity and Moisture availability of the soils were not so appreciably increased. The effect of Zeolite was increased with decrease of clay content in soils.
On the basis of the results, it was suggested that Zeolite could be applied mixing with fertilizer, to sandy and silty soils of low cation exchange capacity for the purpose of decreasing nutrient loss of fertilizer applied, but not be used for the sole purpose of increasing moisture holding capacity and moisture avail-ability of the soils.
Field experiments with differernt kinds of crop are needed for the economical appraisal on Zeolite application to crop land.
Publisher
農業試驗所
Type
journal article
File(s)![Thumbnail Image]()
Loading...
Name
journal_arc_16-1-5.pdf
Size
813.23 KB
Format
Adobe PDF
Checksum
(MD5):09debcf8c0bdf1214bfc49ba02db3693