| This study was mainly aimed at the damage by waterlogging in peanut production regions taking place in south of China during spring and summer seasons. With pot experiment, effects of Waterlogging and its different nutrition regulations on the nutrient absorption and growth of peanut was studied. The main results were as follows:1) Under the condition of waterlogging, the peanut was serious restrained in absorption and accumulation of N, P, K, Ca and Mg. The total amounts of N, P, K and Ca elements in leaves decreased the most obviously. The change trend in root system took the second place and dropped relatively less in stem. The total amount of Mg element dropped the most obviously in the stem. It was second in leaves and it dropped least in the roots. The effect of waterlogging on the total accumulation of main nutrient element in Hua 376 is greater than that in Yuhua 15 after the harvest of the peanut.2) All nutrition regulations improved the absorption and accumulation of N, P, K, Ca and Mg in peanut after suffering from waterlogging. Deal with the result obviously in regulation with nitrogen component part. Phosphorus fertilizer can improve the absorption and accumulation of peanut nutrition very better on later stage, but the effect is obvious and relatively slow. The others regulations improved with the smaller range. Accumulation of N in the leaves and accumulation of Ca in the young fruit was remarkable positive correlation with peanut yield.3) Wterlogging resulted in decrease in the main stem height of peanut. The stem increased thick. The branch counted reduced. The leaf age dropped and the content of chlorophyll reduced. At the same time the accumulation of dry matter reduced by a large margin. Dry matter of the leaf and stem in Hua 376 dropped greater. Secondly it was pod and root system. Distribution proportion of pod and root system increased. Yuhua 15 dropped relatively heavily with the pod and root system. Secondly it was... |
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