Title

SO4(上標2-)和Cl(上標 -)對稻田土壤養分及其吸附解吸特性的影響

Translated Titles

Effect of long-term Applying Inorganic Fertilizers with SO4(superscript 2-) or Cl(superscript -) on Nutrients and adsorb-desorption in Paddy Soils

Authors

曾希柏(Xi-Bo Zeng);劉更另(Geng-Ling Liu)

Key Words

SO4(上標 2-) ; Cl(上標 -) ; 水稻土 ; 吸附解吸 ; 土壤養分 ; SO4(superscript 2-) ; Cl(superscript -) ; paddy soil ; adsorb-desorption ; soil nutrient

PublicationName

植物營養與肥料學報

Volume or Term/Year and Month of Publication

6卷2期(2000 / 06 / 01)

Page #

187 - 193

Content Language

簡體中文

Chinese Abstract

利用長期定位試驗,比較了長期施用含SO4(上標 2-)和Cl(上標 -)化肥22年後稻田土壤的pH值、養分狀況及其吸附解吸特性。結果表明,長期施用含SO4(上標 2-)化肥,土壤有機質、速效氮和速效鉀的含量較高,但全量氮磷鉀的含量較低;長期施用含Cl(上標 -)化肥,土壤全量氮磷鉀和速效磷的含量較高,但pH值相對較低。長期施用含上述二種陰離子的化肥後,土壤對H2PO4(上標 -)最大吸附量均較大,且在Cl(上標 -)處理下土壤對H2PO4(上標 -)吸附的結合能較大,而SO4(上標 2-)處理下土壤在同等吸附量時對H2PO4(上標 -)的解吸量相應較多。長期施用含SO4(上標 2-)的化肥亦使土壤對鉀素的供應強度較大(△K0的絕對值較大)、緩衝能力增強(AR0值較高),而長期施用含Cl(上標 -)的化肥時則與SO4(上標 2-)相反。

English Abstract

The influences of pH, nutrient situation and absorb-desorption of paddy soil after 22 years long-term experiment of applied inorganic fertilizers with SO4(superscript 2-) or Cl(superscript -) were studied. The results showed that when applied inorganic fertilizers containing SO4(superscript 2-), there were higher contents of organic matter and available N and K, but the contents of total N, P, K were all relative lower. While long-term application of inorganic fertilizers containing Cl(superscript -), the contents of total N, P, K and available P were higher, but the pH value was lower. It was advantage to increased the largest adsorption capacity of H2PO4(superscript -) by applying inorganic fertilizers with SO4(superscript 2-) or Cl(superscript -) for long-term in paddy soil. There was a greater K value of adsorbed H2PO4(superscript -) by paddy soil when application of inorganic fertilizers containing Cl(superscript -), but the desorption amount of H2PO4(superscript -) was larger in equal absorption capacity range by paddy soil when applied inorganic fertilizers containing SO4(superscript 2-). Long-term application of inorganic fertilizers containing SO4(superscript 2-) was useful to increasing the buffering and supplying power to K(superscript +) while the effects were just opposite for applying Cl(superscript -) fertilizers.

Topic Category 生物農學 > 植物學
生物農學 > 農業
生物農學 > 森林
生物農學 > 畜牧
生物農學 > 漁業