The nutrients needed in the growth and development of lotus root, on the one hand, come from the photosynthesis of lotus leaves; on the other hand, it comes from the soil, and the original fertilizer in the soil is limited (including basal fertilizer), and it will become more and more as the plant grows and develops. Less, although the fish's excrement and residual bait can provide a certain amount of nutrients for plutonium, it is very small compared to the growth needs of plutonium, so it must be top-dressed in time.
Lotus root grows for a long period of time, usually top dressing 2-3 times. The first time when the vertical leaves started to appear, after the cultivator weeding, 750-1000 kg of human fecal urine fertilizer was applied per 667 square meters. The second topdressing was carried out when there were 5-6 pieces of leaves, and about 1,000 kg of human fecal urine was applied per 667 square meters. The third top-dressing was carried out at the time of the termination of the emergence of the leaves. At this time, the start of the scabs was called the recovery of manure. Every 667 square meters of human waste manure 1500 kg, 30-50 kg cake fat.
Fertilization should be selected sunny and windless weather, to avoid the noon in the hot sun. Discard the field water before each fertilization so that the fertilizer can be drawn into the water and then refill it to its original depth. In Sham Shui Po, the fertilizer is easy to lose, and liquid fertilizer cannot be applied directly. That is, reapply manure, and buried in the mud. When fertilizing chemical fertilizers, the chemical fertilizers are first mixed with the river mud to make a slime and then applied to the fields. Http://Content/3a5165f2-18ec-4dad-ae0e-7eb63a966b83?cType=2
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