Summer is rainy, most fruit trees are in the period of fruit growth and flower bud differentiation, which consumes a lot of nutrients. At this time, soil fertilization is difficult to operate, and only foliar sprays are used to supplement nutrients and meet the needs of fruit tree growth. Add additives to the fertilizer solution. There is a stratum corneum with varying thickness on the leaves of fruit trees. It is difficult for the solution to penetrate. You can add an appropriate amount of wetting agent (neutral soap, good quality detergent, etc.) to the foliar fertilizer solution to improve the effect of foliar spraying. . Choose the appropriate spraying time. Be careful not to spray fertilizer on the foliar surface at high temperature. In a cloudy day without wind, spray it all day; spray it before 10 am and after 5 pm on sunny days. There must be sufficient spray volume. The amount of foliar fertilizer solution absorbed by fruit trees is proportional to the amount of spraying. The appropriate amount of spraying is that the fertilizer solution reaches the state of dripping on the leaves. The spray concentration should be reasonable. Under the premise of no fertilizer damage, increase the concentration of foliar fertilizer. This will not only meet the nutrient requirements of fruit trees, but also the higher the concentration, the faster it will enter the leaves. At the same time, the appropriate concentration should be used according to the weather and the growth of the fruit tree, generally 0.3%~0.5% urea, 0.5%~1.2% superphosphate. Focus on spraying the back of the leaves. Nutrients are absorbed into the fruit tree through the stomata of the leaves. The stomata of the leaves are mainly on the back of the leaf. Therefore, when spraying fertilizer on the leaf surface, spray the back of the leaf with the nozzle upward and the mist point should be fine to facilitate the penetration and absorption of the fertilizer. At the same time, the amount of spraying should not be too large, and it is advisable that the leaves do not drip to prevent the fertilizer from accumulating on the tip of the leaf and causing fertilizer damage. Spray fertilizer symptomatically. It depends on the growth of the fruit trees to spray foliar fertilizer. If the fruit tree grows weakly, the branches and leaves are slowly elongating, and the leaves are yellow or light yellow, this indicates that the fruit tree is lacking in nitrogen and iron. Nitrogen fertilizer should be sprayed as the main method, and ferrous sulfate, phosphate fertilizer and potassium fertilizer should be sprayed appropriately. If the leaves are big and green and the branches are too long, it indicates that the nitrogen fertilizer is sufficient. Phosphate fertilizer and potassium fertilizer should be sprayed mainly, and some trace elements should be sprayed appropriately. For trace elements, foliar spraying is the main method, and its effect is better than soil fertilization.

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Food Additives

Food additives are compounds or natural substances added to food for the purpose of improving the color, aroma, and taste of food, as well as for the needs of anti-corrosion and processing technology. At present, there are 23 categories of food additives, with more than 2,000 varieties, including acidity regulators, anticaking agents, defoamers, antioxidants, bleaching agents, leavening agents, coloring agents, color retention agents, enzyme preparations, and flavor enhancers, nutritional fortifiers, preservatives, Sweeteners, thickeners, spices, etc.

Erythritol, Sweetener, Pigment, XOS , Carotene, fish oil

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