Symptoms and Prevention of Non-Infectious Diseases of Cucumber

One, less fruit (fewer female flowers, more male flowers)

Mainly due to the 1-4 leaves of melon seedlings, the night temperature is high, caused by long sunshine. Therefore, the suitable night temperature for colonization is 14-17°C and the daily temperature is 20-25°C. Erythromycin (200-500 ppm), naphthalene acetic acid (100 ppm), indole acetic acid (1500 ppm), and chlormequat (500-2000 ppm) can also be used to modulate sexual differentiation.

Second, the melon

When light is lower than 1/4 of natural light, coupled with nutrient deficiencies and other reasons, the cucumber seedlings can not guarantee the normal development of female flowers, or due to excessive vegetative growth of plants (mad long) can cause melon. Spraying with acetic acid and other regulators can prevent the melon from mutating.

Third, bitter melon

Mainly due to high levels of cucurbitacin in melon. This is mainly related to the genetic traits of the cultivars, as well as the excessive application of nitrogen in the cultivation and management measures, or the lack of water, malnutrition, etc., which are likely to produce bitter melons.

Fourth, physiological abnormality melon

The common malformations of cucumbers are melons, bee loins, melons, and sharp-toed melons, which are usually due to poor monosomy and poor pollination caused by low temperatures and rain. Poor environmental conditions are also one of the reasons, including temperature, light, lack of water during flower bud differentiation, water supply is not timely after flowering, and supply of potash is insufficient. Production should be strengthened in management to ensure adequate supply of nutrients during flower bud differentiation and flowering, and to avoid cold temperatures during flowering.

Fifth, ammonia poisoning

The appearance of water-stained markings between the median leaf margins and veins was dry 2-3 days later. Alkaline soils, where moisture is too much and then dry, can produce more ammonia.

Six, nitric acid poisoning

The performance is: white spots appear on the leaves, so that the pores are bleached. In severe cases, the leaf veins are bleached to death. The victim's back fell. Excessive nitrogen fertilizer in acid soil can produce more nitrous acid gas. Therefore, pay attention to the amount of nitrogen fertilizer applied in acidic soil.

VII, calcium and magnesium deficiency and prevention

1. Calcium deficiency: The leaching caused by irrigation is severe. The guarana grows too quickly and consumes too much calcium, which results in the loss of trace elements. In acidic soils, excessive nitrogen and potassium fertilizers, and dry soil will hinder the absorption of calcium by cucumbers, resulting in the loss of calcium; low air humidity, rapid evaporation, and insufficient water supply are also prone to calcium deficiency; . Calcium deficiency showed yellowing and drooping of the leaf margin, with the upper leaf slightly smaller and curled inward or laterally. If the soil itself is deficient in calcium, calcium-containing fertilizers may be used to avoid the use of large amounts of potassium and nitrogen fertilizers at one time; watering should be done in a timely manner to ensure adequate water; if necessary, 0.3% calcium chloride solution can be used to spray cucumber leaves.

2. Magnesium deficiency: The soil itself has low magnesium content; too much potassium fertilizer and nitrogen fertilizer also hinder the absorption of magnesium, especially the cucumbers cultivated in greenhouses; the large harvest and no application of sufficient magnesium fertilizer will make cucumbers Magnesium deficiency. In the absence of magnesium, generally on the lower part of the old leaf, the green yellowing between the veins is gradually developed from the main vein to the outer edge; when the magnesium is lacking in the late growth period, a clear green ring may appear on the leaf. In cultivation, soil testing and fertilization are encouraged. If there is a lack of magnesium in the soil, sufficient magnesium-containing fertilizer should be applied before cultivation. If the magnesium deficiency during the growth period can be sprayed on the foliage with a 1-2% magnesium sulfate solution.

Fruit Tea

Scented tea is also known as fruit grain of tea, is a kind of tea drink, in a variety of flowers and fruit drying, concentrate composition contains a variety of vitamins, fruit acid and minerals, but contains no caffeine and tannic acid, a variety of different flavors of scented tea is slightly different in composition, after brewing can still maintain the original flavor of fruit, rich aroma, add rock sugar drink, It can relieve mood and have the effect of beauty.
Flower and fruit tea, half is used to taste, half is used to appreciate, can not be put in a crock. When making tea, it is best to choose a transparent glass pot. It is also a kind of enjoyment to see the glittering and translucent tea water a little bit by the petals. In the brewing process of flower and fruit tea, the temperature should be slightly higher than that of general tea. Because the general tea has been rolled in the process of processing this process, and the flower and fruit tea in the production is generally dry after drying.
It should be noted that on the premise of brewing the flavor of tea soup, the brewing temperature should not be as high as possible, because some effective active substances in tea, such as polyphenols and flavonoids, will decompose at high temperature, so that the efficacy is damaged. Generally speaking, the higher the brewing temperature, the more bitter taste in the tea, can be appropriate to add a little orange juice, honey and other bitter. Of course, if you like a strong taste, you can also cook it.
Storage: The general storage method is to use a dry container, stored in a cool, dry environment. Drink as soon as possible after opening to ensure freshness. To serve, use a dry spoon. It is recommended to put scented tea into the refrigerator freezer, pay attention to storage should be away from fishy smell, avoid fish, seafood and other food put together.

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