从莲藕对氮、磷、钾肥在生长、产量及养分吸收上的反应可以看出,莲藕为喜钾作物,对钾素的需求量较大,增施氮、磷肥时,必须同时施用较多的钾肥才能充分发挥其增产作用。莲藕氮磷钾养分吸收量之比平均约为1∶0.25∶2,综合考虑氮、磷、钾 From the lotus root on the nitrogen, phosphorus and potassium fertilizer in the growth, yield and nutrient absorption of the reaction can be seen, lotus root for the potassium-like crops, the larger the demand for potassium, nitrogen, phosphate fertilizer, you must also apply more Potash can give full play to its role in increasing production. The ratio of N, P and K uptake of lotus root is about 1:0.25:2 on average, taking into account the nitrogen, phosphorus and potassium