Causes and prevention measures of inferior roots of cherry radish
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Cherry radish is a meaty root, bright in color, delicate in texture and nutritious, and it is well received by consumers. Moreover, the cherry radish grows fast and has a short growth cycle. It is cultivated by facilities and can be cultivated for more than 10 per year. The economic benefit is considerable. However, in the production process, due to varieties, environmental conditions, and cultivation techniques, different types of inferior roots may occur, affecting the product quality of products, and some even lose the value of commodities, thereby reducing economic benefits. The reasons for the occurrence of inferior roots of cherry radish and the prevention measures are as follows and are for reference only. First, there are three types of cracks, cracks, horizontal cracks and cracks. The main reason is the uneven supply of soil moisture. In particular, around 23 days after sowing, the size of the fleshy root has reached the weight requirement of the commodity. At this time, if a large amount of water is supplied, the xylem cells will expand rapidly and the pressure inside the root will increase, and the cortex and phloem will not grow accordingly, that is, the root breakage will occur. Preventive measures: Soil water supply should be uniform throughout the growth period to prevent root tissue aging. In particular, when it is about to harvest, it is necessary to prevent a large amount of water supply and keep the soil moist. Second, the deformity Root malformation roots are mainly gourd-shaped, cylindrical, oblate, partial depression-type four. The gourd shape and column shape are mainly caused by poor light, high temperature, or lack of pre-fertilizer. Low light is a major factor in the formation of deformed roots. Oblate circles are mainly caused by the inhibition of growth hormones, such as paclobutrazol, which is used in inappropriate concentrations or residues in the soil. Local depressions are mainly formed by extruding hard objects such as one-hole double-strains, multiple-strains, or stones. Preventive measures: Avoid the use of shade nets and double film covering cultivation. Phytohormones should be used in small areas to select the appropriate concentration. Density should be reasonable, the best use of sowing, 1 hole 1 species. Spreading, seedling must and time seedlings, the winter temperature is low, can be suitable for close planting, spacing 5cm15cm, summer hot season, to be appropriate sparse plant spacing 10cm20cm. When making soil preparation, it is necessary to smash and level the soil and eliminate hard objects such as rocks. Third, heart and heart are related to varieties and cultivation conditions. Precocious and fast-growing varieties are susceptible to heartbreak. The lack of water and fertilizer in the soil, coupled with the high temperature conditions prone to cramps, is not easily harvested or harvested after prolonged storage at temperatures above 15°C. Preventive measures: Use varieties that are not easy to break down, maintain a balanced supply of water and fertilizer, ventilate and cool in time, harvest at a proper time, sell as soon as possible, or store at 0 to 5°C and pack in plastic bags to prevent loss of water. Fourth, uneven color and uneven color There are two kinds of red, white and inconsistent shades of color, uneven color and variety and cultivation techniques. Preventive measures: use pure white or dark purple and the color of the same species, appropriate shallow sowing, sowing depth of 1 ~ 1.5cm better, the density should be reasonable. Fifth, too large or too small roots too large, too small roots and seed quality, cultivation conditions, cultivation techniques. Seed size, age, density, light, temperature, co2 gas, water and fertilizer supplies are uneven, too early or too late harvest can cause too much or too small roots. Preventive measures: Seeds are sown separately according to size and age, improve lighting, temperature conditions, leveling and filling, and supply fertilizer water in a balanced manner. Harvest according to the quality requirements of products in appropriate periods. 6. The occurrence of horseradish crossing horseradish is related to high temperature, drought, pests and diseases and mechanical damage. Preventive measures: Create suitable temperature and humidity conditions, the soil water supply should be uniform, timely control of pests and diseases, avoid meat root damage.