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番茄对氮、磷、钾和钙、镁营养元素的吸收贯穿于整个生育时期。其体内的累积量,全生长期以钾为最多,其趋势是K>N>Ca>P、Mg;主要营养元素的吸收容量,在全生育期有两个高峰,即盛花期和盛果—果膨大期;但各元素的吸收强度以盛果—果膨大期较小,此期为营养最大效率期;营养元素在番茄体内的分布比例,在果实膨大期前是叶>茎>根,进入膨大期后,吸收的N、P、K转移果实中,其分布是果>叶>茎>根,而Ca、Mg的分布是叶>果>茎>根。
Tomato nitrogen, phosphorus, potassium and calcium, magnesium nutrient absorption throughout the growth period. The accumulation of potassium in the body and the whole growth phase was the most, with the trend of K> N> Ca> P, Mg. The absorption capacity of main nutrient elements had two peaks during the whole growth period, However, the absorption intensity of each element was in the stage of full fruit-fruit enlargement period, which was the maximum nutrition efficiency period. The distribution proportion of nutrient elements in tomato body was leaf> stem> root before the fruit enlargement period After the enlargement period, the distribution of N, P, K absorbed fruit was> leaf> stem> root, while the distribution of Ca and Mg was leaf> fruit> stem> root.