Rhizoma is the rhizome fruit of a perennial aquatic plant that has a variety of therapeutic properties. It can be eaten fresh or processed into various forms of food. Therefore, it is very popular in the country, so it can also be cultivated artificially, as long as a certain area of water is utilized. However, this aquatic fruit is very different from the management of fruit cultivation that we used to talk about.

Aquifer regulation

A water depth of 30 cm to 2 meters is suitable for shallow-water varieties, and 2.4 meters for deep-water varieties. However, where the water level can be adjusted in self-built rhododendron ponds, the planting varieties can be selected at will and the appropriate water level can be adjusted at will throughout the rhododendron's growth period. In order to promote loosestrife growth, it is important to maintain a shallow water layer where loosestrife have just been planted, which facilitates respiration. Rhododendron can be raised in deeper water many years ago.

Fertilizing

Fertilizing and fertilizing are mainly shallow water seeds. Generally, fertilization begins when the main stem is divided into disks. Nitrogen fertilizer is used primarily to promote leaf growth. Fertilize with about 20 pounds of urea per acre. Do not apply too much. Urea is pure and easy to grow. Therefore, the fertilizer should be mixed with mud and then dug out the underground layer of mud and buried at 10 centimeters to facilitate absorption without losing water. Then phosphorus and potassium fertilizers are needed during the flowering and fruiting period, mainly for the growth of stems. In order to prevent losses and the foliar spraying of phosphorus and potassium fertilizers is convenient, spray with 0.2% potassium dihydrogen phosphate, spraying 2-3 times. Spraying every half month will ensure the demand for rhododendron. Deep water fertilization generally requires more fertilizer before planting or after harvest when the water layer is shallow, fertilize the pond, accumulate nutrients, and then spray fertilizer during the flowering and fruiting period.

Weeding

Weeds in paddy fields are more numerous than weeds in the open ground because paddy field weeds are of many species, easy to grow in the water environment, and most of them grow continuously and even cover the pond. Therefore, weeding is an important task in horseshoe management. When planting horseshoes, you can start by spraying herbicides to kill weeds and seeds. Then, when you see the weeds planted, you should quickly pull them out while they are small. Don't wait until they are old to pull them out. Chances are the seeds have fallen into the pond. As soon as you find weeds that are stubborn and prone to spreading, you should pull them out. Herbicides can be sprayed when weeds appear in large areas, but hand salvage and uprooting is best.

Pest control

Aphids and leafhoppers occur in diamondback. In the early stage of infestation, spray with 90% of 50 kg or 800 to 5 or 6 crystals of trichlorfon, every 10 days, about 3 times, but depends on the specific conditions of the pest. The occurrence of Rhizoctonia solani causes Rhizoctonia rot, which is treated at the beginning of the disease by spraying with 5% carbendazim 400g and 200g with 50kg of water. It is usually best to spray three to four times every five days to prevent spread.

The above is the rhododendron planting management technology. Generally speaking, planting is only a prerequisite, an important guarantee of management. The management of rhododendron is different from open field cultivation. Management should focus on the characteristics of the rhombus.