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Effect of potassium application on the transformation of zinc fractions in soil and on the zinc nutrition of wetland rice
Author(s) -
Mandal Biswapati,
Pattanayak P. S. Das,
Samanta A.,
Chatterjee A. K.
Publication year - 1996
Publication title -
zeitschrift für pflanzenernährung und bodenkunde
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 87
eISSN - 1522-2624
pISSN - 0044-3263
DOI - 10.1002/jpln.1996.3581590502
Subject(s) - zinc , chemistry , potassium , moisture , environmental chemistry , agronomy , water soluble , wetland , soil water , environmental science , soil science , biology , ecology , organic chemistry
The effect of different levels of K application on the transformation of native as well as applied Zn fractions in a rice‐growing soil was studied under two moisture regimes viz. waterlogged and alternate waterlogged and saturation. Application of K caused an increase in the water‐soluble plus exchangeable, organically complexed and carbonates, and other acid‐soluble mineral fractions of native soil Zn. Application of K also caused an increase in the transformation of applied Zn into all the above three fractions of the element in soil. The above effects of K were more pronounced in soil under waterlogged than under alternate waterlogged and non‐waterlogged moisture regimes. The results of a greenhouse experiment showed that K application caused an increase in Zn uptake and per cent utilization of both native and added Zn by rice. This was attributed to the increase in the water‐soluble plus exchangeable and organically complexed forms of Zn in soil due to K application.