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Cultivation techniques of super sweet corn
Hits: 23200 ; source: Internet Author: release time: 2011-05-16 09:30:23

one . strict isolation.

When selecting the land for planting, it must be isolated from common corn or other types of sweet corn four hundred If there are trees, hills and other barriers, the distance can be shortened. If the distance is not enough, time isolation should be used to avoid the two types of corn pollen meet, and the sowing date should be different twenty More than days. Choose loose, fertile soil, drainage and irrigation border wide package ditch one point three Two rows of rice, row spacing fifty Cm, plant spacing 32~36 At the end of each hole one Strains.

two . sowing in time.

According to the market and climate to determine the sowing date, large-scale planting should be phased sowing. If it is necessary to sow early in spring in order to supply the market in advance, plastic film mulching can be used to cultivate seedlings and transplant. Soil moisture should be sufficient. Otherwise, irrigation should be done in time after sowing. Sowing depth should be consistent, appropriate shallow sowing, sowing depth can not exceed three Cm to ensure the whole seedling.

three . planting density.

The planting density is determined according to the commodity requirements and economic benefits. each six hundred and sixty-seven Square meters( one The number of plants is: spring sowing two thousand and eight hundred three thousand Autumn sowing three thousand three thousand and two hundred Strains.

four Scientific fertilization.

The base fertilizer is mainly organic fertilizer six hundred and sixty-seven Application of high quality farm manure in square meter one thousand Kg ~ one thousand and five hundred Kg, superphosphate thirty Three yuan compound fertilizer was applied evenly in the sowing ditch ten Kg ~ fifteen Kg as seed fertilizer. Every six hundred and sixty-seven Urea application per square meter ten Kg, KCl fifteen In the period of big mouthing, urea was applied twenty Kg, compound fertilizer ten We should bury the ears deep and apply heavy fertilizer every time.

five . field management.

three four When transplanting seedlings, the soil should be taken with water after planting. It is best to carry out in the evening or cloudy days. five The seedlings are fixed in each hole when the leaves are on one In addition, combined with Topdressing and weeding, the soil was loosened at seedling stage, and soil was cultivated from jointing stage to bell mouth stage. Reasonable irrigation and drainage, the soil moisture at seedling stage is less than that of water holding capacity fifty ~60 %After jointing, the soil moisture should be kept at the water holding capacity seventy %。 Sweet corn has the characteristics of tiller and branch. In order to ensure the yield and grade of ear, tillers should be removed as soon as possible to avoid damaging the main stem and leaves.

six . pest control.

We should pay attention to the control of pests in seedling stage and corn borer in middle and late stage. In order to prevent food poisoning, pesticide should be used cautiously in the middle and later period. Biological control of insect pests should be used after pollination. Chemical pesticides should be used as little as possible. Highly toxic pesticides with long residual effect should not be used. Control of underground pests six hundred and sixty-seven Square meter three %Milol granules five For the control of corn borer, the eggs of Trichogramma can be inoculated at the bell mouth stage, and the heart leaves of the corn borer can be irrigated with the powder of borer and Beauveria bassiana. The results showed that the rate of flower and leaf was up to ten %It is suitable for control eighty %Dichlorvos EC two thousand and five hundred three thousand Bilye, per plant ten fifteen The effect of prevention and treatment was 100 ml eighty-five %Above, can also treat corn thrips. It is also ideal to use pyrethroid pesticide as poison soil or diluent for heart filling.

seven . harvest at the right time.

After pollination twenty It should be harvested in time.

Corn is recognized as the "gold crop" in the world. Yellow corn contains a lot of vitamins and enzymes which are beneficial to prolong life, and the deeper the yellow color, the higher the content. Corn's greatest contribution to mankind is that it contains rich pigments lutein and zeaxanthin, which dye corn into gold. They are powerful antioxidants, which can protect the sensitive area of the eye called macula and prevent the occurrence of cataract in age-related macular degeneration.

  Corn is "pearl rice". Since the Qing Dynasty, crystal clear and moist corn has been known as "pearl rice". The content of saturated fatty acids in corn is higher than that in milled rice and flour five six Times. Especially the content of linoleic acid is as high as 60% Above, also contain vitamin E It has the effect of lowering cholesterol, preventing arteriosclerosis, coronary heart disease and brain function decline. Corn is also rich in cellulose, the content of which is rice ten It can be combined with bile acids and excreted from the body, reducing the synthesis of cholesterol.

Corn is "medicine Pearl". Corn has an anti-cancer factor - glutathione, which can use its own chemical "handcuffs" to handcuff carcinogens, make it lose toxicity, and drive it out of the body through the digestive tract. Corn contains selenium and magnesium. Selenium can accelerate the decomposition of oxides in the body, so that malignant tumors can not get oxygen supply, thus being inhibited; magnesium can not only inhibit the growth of cancer cells, but also make the body waste out of the body as soon as possible. Lysine in corn also plays an important role in the comprehensive and synergistic prevention and treatment of cancer. Corn contains more glutamic acid, which has the effect of strengthening brain. Corn cellulose can absorb part of glucose, so that the blood sugar content is reduced, has the effect of prevention and treatment of diabetes.

Corn is "beauty acid". Corn contains a large number of unsaturated fatty acids, of which linoleic acid accounts for 34% 62% Linoleic acid, also known as "beauty acid", can eliminate excess cholesterol in the human body and prevent hyperlipidemia caused by arteriosclerosis. Especially vitamins E It has the ability to remove free radicals in the human body, and free radicals are the culprit of vascular sclerosis. Glutathione, a longevity factor in maize, is transformed into glutathione oxidase with the participation of selenium, which has the function of restoring youth and delaying aging.

The health function of corn is unique in omnivory food. Its corn oil can reduce blood lipid, reduce platelet aggregation and delay thrombosis. Corn water not only has the fragrance of corn, but also has the effect of diuresis, anti-inflammatory and prevention of urinary tract infection. Summer is the season with high incidence of urinary tract infection. When cooking corn, it is better to leave some corn whiskers and leave two layers of green skin. The taste and efficacy will be better

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