Reasons and prevention of physiologic disorders of fleshy root in radish
2019-07-08 15:04:14
The main reason for the radish sprout root physiology and the prevention and control of radish is its enlarged fleshy root, but the fleshy root often produces bifurcation, bending, cracking, hollow, spicy, bitter and epidermal white rust and rough skin during the process of enlargement. Physical disorders, etc., seriously reduce the commodity value and food value of radish.
First, the cause
(a) Bifurcation and bending 1 seed obsolete. 2 mismanagement. Straight root system injuries and setbacks cause abnormal expansion of lateral roots; application of organic fertilizers that have not been decomposed; organic fertilizers cause fever to cause bent or bifurcated roots; shallow soil layers, rough texture, or stones, hard residual roots, etc. The growth of fleshy roots forms a curved fleshy root or fork root.
(b) When the soil is cracked, the soil is dry when wet and the water content is more or less. The uneven supply causes longitudinal cracks, horizontal cracks, and radial cracking of the root head.
(3) Hollow fleshy loose large breeds are easy to produce hollow; daytime and nighttime temperatures are high, especially when the night temperature is higher than 18°C, it is easy to cause hollow; nutrient is strong, cultivation density is small, plant growth is vigorous, roots of meat are fast and easy to grow. Hollow. During storage, the temperature is high, the humidity is small, and it is easy to cause hollow. The storage temperature is high, and the shortening stem of the fleshy root sprouts and grows, that is, it is convulsed in advance, and it easily causes hollow.
(4) Spicy and bitter taste are caused by excessive heat, drought, insufficient supply of fertilizer and water, pests and diseases, etc., resulting in insufficient accumulation of fleshy roots and excessive accumulation of spicy mustard oil. Bitterness is caused by partial application of nitrogenous fertilizer that causes the root compound in the roots of the flesh to produce nitrogen-containing momordicin.
(E) rough skin 1 soil too much water or too heavy, poor ventilation, inhibiting the development of the roots, resulting in lateral root protrusion, rough skin; 2 use of organic fertilizer is not decomposed, many underground pests, bite into the rough skin .
Second, control methods
(a) Select a dense meat variety and use new seeds.
(2) Choose a land with high topography, deep soil, loose soil, convenient drainage and irrigation, and do a good job of soil treatment before sowing to kill underground pests.
(3) Suitable sowing, arrange the root enlargement period of meat in the period of high night temperature and low temperature, and timely harvest.
(D) Rational fertilization, application of fully cooked organic fertilizer.
(e) After the fleshy roots begin to form, the irrigation should be uniform to prevent the soil from drying out and wet. When the night temperature is high, irrigation can be used to reduce the field temperature.
(6) Strengthen the temperature and humidity management of the storage environment. Ventilate air vents (insert bundles of bundled straw) when burying, and shorten the shortened stems before storage to prevent premature convulsions.
First, the cause
(a) Bifurcation and bending 1 seed obsolete. 2 mismanagement. Straight root system injuries and setbacks cause abnormal expansion of lateral roots; application of organic fertilizers that have not been decomposed; organic fertilizers cause fever to cause bent or bifurcated roots; shallow soil layers, rough texture, or stones, hard residual roots, etc. The growth of fleshy roots forms a curved fleshy root or fork root.
(b) When the soil is cracked, the soil is dry when wet and the water content is more or less. The uneven supply causes longitudinal cracks, horizontal cracks, and radial cracking of the root head.
(3) Hollow fleshy loose large breeds are easy to produce hollow; daytime and nighttime temperatures are high, especially when the night temperature is higher than 18°C, it is easy to cause hollow; nutrient is strong, cultivation density is small, plant growth is vigorous, roots of meat are fast and easy to grow. Hollow. During storage, the temperature is high, the humidity is small, and it is easy to cause hollow. The storage temperature is high, and the shortening stem of the fleshy root sprouts and grows, that is, it is convulsed in advance, and it easily causes hollow.
(4) Spicy and bitter taste are caused by excessive heat, drought, insufficient supply of fertilizer and water, pests and diseases, etc., resulting in insufficient accumulation of fleshy roots and excessive accumulation of spicy mustard oil. Bitterness is caused by partial application of nitrogenous fertilizer that causes the root compound in the roots of the flesh to produce nitrogen-containing momordicin.
(E) rough skin 1 soil too much water or too heavy, poor ventilation, inhibiting the development of the roots, resulting in lateral root protrusion, rough skin; 2 use of organic fertilizer is not decomposed, many underground pests, bite into the rough skin .
Second, control methods
(a) Select a dense meat variety and use new seeds.
(2) Choose a land with high topography, deep soil, loose soil, convenient drainage and irrigation, and do a good job of soil treatment before sowing to kill underground pests.
(3) Suitable sowing, arrange the root enlargement period of meat in the period of high night temperature and low temperature, and timely harvest.
(D) Rational fertilization, application of fully cooked organic fertilizer.
(e) After the fleshy roots begin to form, the irrigation should be uniform to prevent the soil from drying out and wet. When the night temperature is high, irrigation can be used to reduce the field temperature.
(6) Strengthen the temperature and humidity management of the storage environment. Ventilate air vents (insert bundles of bundled straw) when burying, and shorten the shortened stems before storage to prevent premature convulsions.
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