Yam planting methods and techniques, growing environment is very important

The method of raising seedlings: dig the pit cellar, cut the yam into pieces, air-dry the yam, soak it with Ti-Zn-mn solution, put it into the pit cellar after air-drying again, sprinkle 3 cm of wet sand and pour appropriate amount of water. Planting method: input 300-500 jin of soybeans per mu and 400-600 jin of organic fertilizer. After opening the ditch, put the yam neatly into the ditch, cover with a layer of soil and pour enough water. Fertilization management: 2-3 times of topdressing during growth. Prevention and control of diseases and insect pests: spray 65% zinc to control.

I. Seedling raising methods

Before planting Chinese yam, you first need to dig a pit cellar, then cut the yam into pieces and air-dry it, then soak it with Ti-Zn-mn solution for half a minute for disinfection, and then air-dry it again and put it neatly into the pit. Sprinkle the wet sand of 3cm on top, and you can continue to put yam on top of the sand, generally to 3-4 layers, and then pour the right amount of water.

II. Planting methods

1. Generally, 300-500 jin of soybeans can be input per mu, because after fermentation or soil microbial decomposition, soybeans will produce amino acids, polypeptides, a small amount of sugars, vitamins, flavonoids and other substances. Polypeptides and amino acids can provide necessary organic nitrogen sources for soil microorganisms.

2. At the same time, it can be directly absorbed and utilized by the root system of Chinese yam, which is beneficial to promote the growth and improve the quality of Chinese yam. In addition, 400-600 jin of organic fertilizer and 1 bag of special insecticides for Chinese yam can be applied, which can be evenly mixed with the soil and sprinkled on the surface. At the same time, the land should be ploughed deeply to make the fertilizer go deep into the bottom layer, compacted with vehicles and ditched again.

3. Suitable ditch spacing is 40-60cm, ditch depth is 160-180cm, then manually step on the ditch section, use the plough to plough a rill at the top of the ditch, put the yam neatly into the ditch, put a yam into each 10cm, cover it with a layer of soil, water it in time, and then spray a special Chinese yam herbicide.

III. Fertilization management

The main results are as follows: 1. When planting, it is necessary to apply sufficient base fertilizer, and only 2-3 times of topdressing is needed in other growth stages. during this period, not far from the plant, dig the fertilizer application ditch of 6-10cm, and then put in the fully mature organic farm manure.

2. Although the root distribution of Chinese yam is shallow, the upper and lower surface of Chinese yam have thick stratum corneum, so it is very drought-tolerant. In the whole growth process of Chinese yam, it only needs to be irrigated 5-7 times. When planting, it is necessary to pour enough fixed planting water.

IV. Prevention and control of diseases and insect pests

1. The main pests of Chinese yam are mole cricket, grub and golden needle worm. During this period, the soil can be deeply turned over at least 25-30cm before winter, which is beneficial to turn the larvae to the surface and make them die in the sun, freeze to death or be preyed on by natural enemies.

2. The main diseases of Chinese yam are anthracnose and brown spot, etc. The general control method is to clean the countryside and eliminate the bacterial source. when diseased leaves are found in the land, the diseased leaves need to be cut off immediately, and then 65% zinc is sprayed for prevention and control, once every 7 days. Spray 2-3 times continuously.

5. Timely harvest

When the stems and leaves of the yam all withered from late October to November, its underground stems have entered a dormant state, and they can be harvested and sold, or the yam can be stored in a cellar after harvest.