The planting technique of Puhuang should be planted from March to June and the soil should be kept moist.

Pollen pollen planting is generally selected in paddy fields, swamps and shoals rich in organic matter and relatively deep silted soil layers. The soil requires pine seeds, soil preparation and fertilization to be planted. The planting time is generally from March to June. We generally adopt ramet propagation. First, we select healthy ramets, plant them according to the spacing and plant spacing of 50cm. After survival, we reasonably control the water level. The water level in the early stage is about 15cm, and the deepest depth in the later stage cannot exceed 1.2 m. We should apply fertilizer in time to prevent insects.

1, planting environment

Pollen pollen has low environmental requirements, it has the characteristics of high humidity, low temperature resistance, high temperature and strong adaptability. Pollen Typhae is generally planted in lakes, swamps, paddy fields and shoals with deep siltation and rich organic matter in the soil layer. It is required that the soil should be filled with pine seeds, which is conducive to soil fertilizer arrangement and water control. Soil preparation can be combined with base fertilizer, base fertilizer is mainly based on manure or organic fertilizer, soil preparation can be planted.

2. Breeding method and time

Pollen pollen has two ways of reproduction, namely, sub-plant reproduction, seed reproduction, we generally use sub-plant reproduction mainly. Breeding time is generally in March-June, the best breeding time is March-April, the general temperature above 15℃ can be planted. Plant division propagation: select healthy plants for planting before planting. Dig holes for planting according to row spacing of 50cm and plant spacing of 50cm. Two small plants can be planted in each hole.

3. Field management

After Pollen Typhae is planted well, we need to strengthen field management, the most important of which is water management. After planting, the water content in the field should not be too much or too little. The water level in the early stage should be about 15cm. In this way, the surface temperature will increase, and the survival rate of Pollen will also increase. Pay attention to keeping the soil moist all the time, otherwise it will affect the normal growth of Pollen. According to the different growth stages of Pollen, we can appropriately raise the water level, and the maximum depth shall not exceed 1.2 m.

If there is poor development and slow growth after Pollen Typhae survives, we need to apply topdressing in time, mainly with decomposed farm manure, and appropriate amount of fertilizer. In the later stage, it is also necessary to thin and supplement seedlings, weed in time, and reduce the loss of nutrients.

4. Reasonable harvest

Pollen cattail is a Chinese herbal medicine, can also be used as vegetables to eat, mainly eat its stems and leaves, rich in protein and other nutrients, is a health care green vegetables. Pollen in the growth of aphids, you can use dimethoate to control, pay attention to harvest within 15 days before spraying any chemicals. Pollen Typhae should be harvested reasonably. Usually, the upper part of Pollen Typhae should be cut off with a knife or pulled out by hand. In order not to affect the yield and quality of the coming year, it is necessary to pay attention not to damage the root of Pollen Typhae during harvesting.