The latest planting management of water chestnut

Water chestnut is a kind of perennial aquatic plant rhizome fruit, has a variety of therapeutic effects, can be eaten fresh or processed into a variety of forms of food. Therefore, it is very popular in various places, so it can also be cultivated artificially, as long as it can be planted with a certain water area. However, the planting and management of this kind of aquatic fruit is very different from what we have said in the past, and it is close to other aquatic plants, so I would like to say that I would like to introduce it to you separately.

I. Water layer regulation

The water layer with a water depth of 30 centimeters to 2 meters is suitable for planting shallow water varieties, and then the water depth of 2.4 meters is suitable for growing deep water varieties. However, where the water level can be adjusted in the self-built Lingtang, the planting varieties can be selected at will, and the appropriate water level can be adjusted during the whole growth period of the water chestnut. In order to promote the growth of water chestnut, the place where the water chestnut has just been planted should maintain a shallow water layer, which is conducive to breathing, and the old water can be raised in deep water for many years.

II. Fertilization

Fertilizer topdressing is mainly shallow water species, generally start fertilization when the main stem is divided into plates, mainly apply nitrogen fertilizer to promote leaf growth, fertilization is about 20 jin of urea per mu. Do not apply too much, urea is of high purity and easy to grow, so first mix fertilizer and mud, and then dig up the underground mud layer and bury it in a position of 10 cm, which is convenient for absorption without water loss. Then, during the flowering and fruiting period, phosphorus and potassium fertilizer is needed, which is mainly for the growth of stem water chestnut. In order to prevent loss, and phosphorus and potassium fertilizer is convenient for foliar spraying, 0.2% potassium dihydrogen phosphate foliar spray is used for 2 to 3 times in a row. Spraying once every half a month can ensure the need of water chestnut. Deep-water fertilization generally requires more fertilization before planting or after harvest when the water layer is shallow, fertilizing ponds, accumulating nutrients, and then mainly spraying fertilizer during the flowering and fruiting period.

3. Weeding

Planting in the water will grow more weeds than in the open field, because the species of aquatic plants are rich, they are easy to grow in the water environment, and most of them grow and spread and may even cover the diamond pond. Therefore, weeding is an important work in water chestnut management. When planting in water chestnut, you can first spray herbicide to kill aquatic plants and seeds. Then when you see the weeds after planting, you should pull them out while they are small. Don't wait for the aging to be pulled out. It is possible that the seeds have fallen into the pond. Then it is necessary to pull out the tenacious and easy-to-spread weeds as soon as they are found. weeds occur in a large area and can be sprayed with herbicides, but it is best to be salvaged manually and uprooted by roots.

IV. Prevention of diseases and insect pests

Water chestnut aphids, leafhoppers and so on. In the initial stage of the damage, you can use 90% crystal trichlorfon 800x liquid or enemy Kill 5Mel 6 50kg mixed with water to spray once every 10 days, about three times in a row, but it depends on the specific situation of the pest. Water chestnut plague, the leaves will rot, in the initial stage of the disease with 5% Jingangmycin 400g plus 200g carbendazim water 50kg spray treatment, generally spray three to four times every five days, it is best to prevent spread.

The above is the management technology of water chestnut planting, generally planting something is only a prerequisite, but the important guarantee condition of management, water chestnut management is different from planting fruit in the open field, the management work should grasp the characteristics of water chestnut.