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采用盆栽与微区试验相结合的方法研究了芋的营养特性。芋对氮、磷、钾、钙、镁元素的吸收量以出苗后45天为最高,对镁素的吸收量整个生育时期差异不大。对氮、钙、镁吸收的积累量是从出苗后93天开始增加,对磷、钾吸收的积累量从出苗后的109天开始增加。氮、磷从出苗后45～93天,50％集中在叶片中,109天后逐渐转入子芋和孙芋。钾素在出苗后45～77天,52.25％分配在叶片中,从109天后转入子芋。钙素却从出苗后45天至收获期46.78％以上分配在叶片中,而镁素从出苗后45天至125天主要分配在叶片中,以后转入子芋。
The potted and micro-area test method was used to study the nutritional characteristics of taro. Taro nitrogen, phosphorus, potassium, calcium and magnesium absorption to 45 days after the emergence of the highest, the absorption of magnesium throughout the growing period of little difference. The accumulation of nitrogen, calcium and magnesium increased from 93 days after emergence, and the accumulation of phosphorus and potassium increased from 109 days after emergence. Nitrogen and phosphorus 45 to 93 days after emergence, 50% concentrated in the leaves, 109 days after gradually transferred to the sub-taro and sun taro. Potassium 45 to 77 days after emergence, 52.25% distributed in the leaves, transferred from 109 days after the child taro. Calcium was distributed in the leaves from 45 days post-emergence to above 46.78% of the harvest, while magnesium was mainly distributed in the leaves from 45 days to 125 days after emergence, and then transferred to the sub-roots.