Causes of root cracking of white radish and its control methods

White radish is a common vegetable in daily life, and fleshy root cracking often occurs in the process of planting, also known as root cracking disease, all occur in the middle and later growth, cracks are mostly longitudinal cracking, cracks are also deep, white radish after root cracking is very easy to occur soft rot, causing huge economic losses to protection. So how to prevent and cure the root cracking of white radish? Come and have a look with the editor.

1. Main symptoms

The root cracking of white radish mainly occurred in the middle and later stage of growth, mostly longitudinal cracking, with different cracking length, some cracking from the root tip to the middle of the fleshy root, and in severe cases, the crack began from the root head and ran through the whole root. Sometimes there will be lateral cracking, or radial cracking in the root head, the cracked fleshy root is very prone to soft rot and other microorganisms, which reduces the storability and commercial value of radish.

2. The cause

There are many reasons for the cracking of the fleshy root of white radish, among which the lack of water supply in the growing period is the main reason, because the tissue structure of the fleshy root is huge. The structure of white radish can be divided into cortex, phloem, cambium and xylem, and xylem is the most developed structural layer. In the early stage of growth or the early stage of fleshy root expansion, in the event of high temperature and drought, the water supply is insufficient, then the epidermis of the fleshy root will age and harden, and the internal cells divide quickly; in the middle and later stages, the temperature is suitable and the water supply is sufficient. Xylem cells will accelerate separation, re-expansion, internal pressure, but the already hardened epidermis can not continue to grow, will directly split the epidermis.

3. Prevention and control methods

The first thing we need to do is to do a good job in water management, to maintain a uniform supply of water, to water in a timely manner in times of drought, and to keep the soil water content between 65% and 80%. Especially when the fleshy root is swollen, the water supply should be uniform to make the soil moist. In case of continuous overcast and rainy weather, stagnant water should be removed in time to avoid sudden dryness and moisture in the soil. It is necessary to apply fertilizer reasonably, nitrogen fertilizer can be selected in the early stage, but it is not suitable to continue to apply nitrogen fertilizer in the later stage, potassium fertilizer or boron and molybdenum can be applied appropriately. Topdressing should follow the principle of a small amount of uniform, a small number of times.

The above is the introduction of the root cracking causes and control methods of white radish. I hope it can help you. If you want to know more about it, please follow us.