By measuring the quantum of nourish and water in fertilized Dendranthema×grandiflor Tzrel, the authors find that the requirements of N, P are greater in intermediate phase of growth and they can improve the plant’s nourish growing. On the other hand, the requirement of K descends gradationally during the plant growing. During the growth period, the rule of the quantum of water is that intermediate phase>prophase>anaphase. It proves that Dendranthema×grandiflor Tzrel is in the best growing state in i...
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