In August, the mid- and late-ripening apple varieties enter the fruit expansion period. Fertilizer supply is a major management point. In addition, summer pruning must be done. What are the key management points of Apple Orchard?

Pest Control

Spray the pesticides based on Bordeaux mixture and alternately use systemic pesticides to prevent the occurrence of early leaf fall disease in apples; in terms of insect pests, control Lepidopteran pests such as golden moth and apple leaf roller. In late August, the tree trunks are tied to grass handles to trap red spiders and other pests through the winter, and they are thawed and burned before thawing the following year to reduce the insect population density.

In the rainy season, the following points should be paid attention to to improve the effect of pest control:

1. Use pesticides with strong systemic properties, which can be absorbed by crop stems and leaves and quickly transmitted to various parts, and its efficacy is less affected by rainfall.

2. Using pesticides with strong knockdown power can quickly play its role in the prevention and control of pests and diseases, thereby avoiding or reducing rainwater leaching of the pesticide.

3. Use pesticides resistant to rain erosion, which have strong penetration and erosion resistance, and are suitable for application in the rainy season.

Fertilizer supply

1. During the fruit's rapid growth and development, coloring and maturity period, the amount of nitrogen fertilizer should be strictly controlled, and phosphorus and potassium fertilizers should be increased to facilitate fruit development, coloring and flower bud differentiation.

2. As a result, fruit trees should be topdressed in time to promote flower bud differentiation. Generally, 0.1-0.2 kg potassium dihydrogen phosphate and 0.3-1 kg potassium sulfate compound fertilizer are applied.

3. Cultivation and drainage: timely cultivating and weeding, pay attention to drainage during the rainy season to prevent waterlogging damage. After the beginning of autumn, the grass has aged. At this time, spray 200 times of glyphosate, and use 1-1.5 kg of medicine per mu. It can be controlled by using twice in the growing season.

Summer pruning

1. Pulling branches, fruit tree branching****** is carried out in late summer and early autumn (from mid-August to mid-September). During this period, the branches are soft and malleable. According to the plastic requirements, the angle of the branches can be opened, or the extension and growth direction of the branches can be changed.

2. Thinning branches. In early August, for large trees with too many auxiliary branches, some large branches can be thinned out. Long branches, upright branches, and excessively prosperous branches should also be thinned according to the space to improve the ventilation and light conditions of the tree. Improve the quality of flower buds.

3. Wipe off the buds and wipe off the useless buds and new shoots that sprout from the branches and cuts in time.

Fruit management

The bagged fruits of mid-ripening varieties will be bagged from mid to late August. Double-layer bags should go to the outer bag first, and then go to the inner bag after 3-5 days; for single-layer bags, tear the paper bag longitudinally first, leaving the remaining bag on the fruit, and remove it after 3-5 days. Note that you should choose to go to the bag during the day when the temperature difference between the inside and outside of the bag is small. After the bag is removed, the leaves are picked, the fruit is transferred, and the reflective film is laid to promote the coloring of the fruit.

The Marshal varieties that are prone to fruit drop before harvest are sprayed with 30-40 mg/kg naphthalene acetic acid once in mid-August and at the end of August, one month and half a month before harvest, to prevent fruit drop before harvest.

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Food Additives

Detailed introduction of food additives

Food additives are chemical substances that are added during food production and processing to improve the quality and characteristics of food. They can improve the taste, color, texture, freshness, and nutritional value of food products and provide consumers with a better food experience.

First, let's introduce a common food additive, food coloring.

Food coloring is mainly used to change the color of food to make it more attractive. Common food colorings include natural colorings and synthetic colorings. Natural pigments generally come from plants, animals or microorganisms, such as carotene and chlorophyll. Synthetic pigments, on the other hand, are obtained through chemical synthesis, such as bright blue pigment and lemon yellow pigment. Food coloring is widely used in food products such as pastries, beverages, jams, etc. to make them more colorful and diverse.

Secondly, food preservatives are also one of the common food additives.

Food preservatives can prolong the freshness period of food and reduce the growth of bacteria and molds, thus maintaining the freshness and quality of food. Common food preservatives include sulfates and nitrites. They are widely used in meat products, fruit and vegetable products, canned food, etc. to ensure that the food is not easy to rot and deteriorate.

Besides colors and preservatives, food thickeners are also one of the commonly used food additives.

Food thickeners can increase the consistency and texture of food, making it taste better. Common food thickeners include gelatin and pectin. They are widely used in jellies, sauces, dairy products and other foods to enhance the taste and quality of food.

In addition, food sweeteners are also one of the common food additives.

Food sweeteners can replace traditional sugars to provide sweetness to food while reducing calorie intake. Common food sweeteners include sucralose and aspartame. They are widely used in candies, beverages, chewing gums and other foods to satisfy people's need for sweetness.

Finally, let's introduce a common food acidifier - citric acid.

Citric acid can increase the sour flavor of food and enhance the taste of food. It is widely used in beverages, jams, condiments and other foods to make them more refreshing and delicious.

Food Additives,Natural Sweeteners,Natural Colorants,Pure Natural Colorants Curcumin

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