Cultivation techniques of plantain

1. It is better to choose wet and fertile sandy loam for soil preparation. Plantain root system is mainly distributed in 10-20 cm tillage layer, so soil preparation should be meticulous. Turn over 15-20 cm, break soil blocks for border, border width 1 m, length 10-15 m, apply organic matter base fertilizer 4000 kg per mu.

two。 Sowing in the middle and lower reaches of the Yangtze River is suitable for sowing from early March to early April, either strip sowing or sowing. The strip sowing method is simple, labor-saving and labor-saving, and the row spacing is 15-20 cm and the plant spacing is 6-7 cm. Open a shallow ditch, 1-1.5 cm deep, cover less soil after sowing, it is appropriate to see no seeds, and suppress once, to prevent soil evaporation, conducive to seed germination. Because the seeds germinate slowly, such as dry soil, water can be sprayed once 2-3 days after sowing, the current should be small, and the dry land should be loosened to avoid exposing the seeds. Seedlings emerged 10-15 days after sowing. Hole sowing is commonly used in the south, the distance between holes is 25 cm, 10 grains per hole is 15, and the amount of seed used per mu is 0.3 kilograms.

3. Field management (1) weeds were pulled out in time after the seedlings were collected and combined with the seedlings. When the seedling height is 6-7 cm, it can be combined with inter-seedling to harvest seedlings for food. (2) Plantago asiatica seeds are small, grow slowly after emergence, and are easy to be inhibited by weeds, so weeds should be removed in time at the seedling stage, usually 3-4 times a year. (3) topdressing plantain likes fertilizer, and after fertilization, it has more leaves, more spikes and longer ears, and the yield is high. Generally, topdressing was carried out three times: the first time in May, 1500 kg of sparse human and animal manure per mu; the second, 10 kg of diammonium phosphate per mu in the first ten days of July; and 1500 kg of stable fertilizer per mu after seed collection.

4. The main disease of pest control is powdery mildew, a layer of gray powder appears on the surface or back of the leaf, and finally the leaf withered and died. At the initial stage of the disease, 50% methyl topiramate was sprayed with 1000 times solution.

5. Plantain was harvested and processed and used as medicine. When the fruit is ripe, cut the ear, dry it and rub out the seeds, winnowing the impurities. The yield of dry seeds is 40kg to 50kg per mu.