1. When planting melon and fruit crops on soils with high fertility, they are mostly applied after planting and replanting or when they are in flowering, and they must be stopped several days before fruit collection is completed. Gas fertilizers cannot be used halfway.
2. The seedling stage is a period with better effect of gas fertilizer application, which is conducive to cultivating strong seedlings, accelerating the development of seedling stage, and early flower bud differentiation of fruit vegetables, which is very obvious for improving early yield.
3. The demand for carbon dioxide in leafy vegetables is greater than that in fruit and vegetables. Leafy vegetables generally start to use carbon dioxide when they are planted and emerged. Continuous use is usually used for 7 to 10 days in continuous use of gas fertilizer to see the effect of increasing gas fertilizer. .
4. The use of carbon dioxide within a facility requires a well-enclosed facility structure. If the ground temperature or the temperature in the greenhouse is too low, the effect of adding gas fertilizer is not significant, and this can be suspended.
5. The addition of gas fertilizer basically does not change the original field management method, but due to the vigorous growth of crops after the addition of gas fertilizer, water and fertilizer should also be increased appropriately, but excessive water and fertilizers should be avoided to cause leggy and should be increased. Phosphorus and potash fertilizers are used to control nitrogen fertilizers appropriately.
6. The appropriate concentration of carbon dioxide After research, it is believed that in order to increase production and reduce costs, it can also prevent the damage of crops caused by high concentration of carbon dioxide. Its concentration should be controlled below the point of crop saturation, generally not exceeding 1000 PPM.
7. The daily amount of carbon dioxide emission should be controlled flexibly, sunny days should be fully applied, and the amount of cloudy weather can be reduced by 20% to 30%. On cloudy days, it can generally be reduced by 50% compared with the sunny days; rain and snow can be kept.
8. The continuous application is better than the intermittent or hourly use, stop time increase production effect, the greenhouse does not release air during the deep winter, the time of topdressing carbon dioxide should not be interrupted, so in addition to rain and snow, it should be used without continuous termination of gas fertilizer.
Vitamin A in fresh corn also has a certain auxiliary effect on the prevention and treatment of common dry eye, bronchitis, dry skin and nerve paralysis. Fresh corn is rich in lysine (very little in dry corn), which is an essential nutrient for the human body. Studies have found that eating more fresh corn can also inhibit the side effects of anticancer drugs on the human body. The cellulose in fresh corn is more and longer, and its amount is 6 to 8 times that of polished rice and flour. Fiber can make the stool smooth, so eating corn often can prevent constipation and hemorrhoids, and can also reduce the occurrence of gastrointestinal diseases. At the same time, it is also beneficial for preventing rectal cancer, arteriosclerosis, and lowering cholesterol. In addition, fresh corn is a bit hard and needs to be chewed hard when eating, which can exercise the teeth and promote saliva production and strong gums.
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