Influence of water temperature on the changes of soil and plant nutrient of paddy rice
1985
Kim, L.Y. | Min, K.B. | Jo, I.S. | Ju, N.S. | Um, K.T. (Rural Development Administration, Suwon (Korea R.). Agricultural Sciences Inst.)
In order to investigate the effects of water temperature on chemical properties of soil and nutrient uptake of rice plant, four varieties of rice were cultivated in a field where water temperature range was 17.3-23.0 deg C and plant samples were taken at three growing stages and were analyzed in detail. Organic matter content an pH of surface soil were showed no differences while the contents of P2O5 and SiO5 were increased and potassium was decreased as the water temperature increased
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