Fertilizers are generally based on organic fertilizers, such as manure, soil fertilizer, cake fertilizer, grass ash, etc., with the appropriate amount of available nitrogen, phosphorus and potassium fertilizers, in order to enhance the tree vigor. Organic manure must be applied after adequate decomposing. Do not apply raw manure directly. If the organic fertilizer is applied to the rhizosphere of the jujube tree without being rotted, the heat generated during the microbial decomposition of the soil will cause the root system to burn, resulting in degeneration of the tree, death, or induction of rot. The amount of organic fertilizer should account for more than 90% of the amount of fertilizer.
Fertilizer dosage Zaoyuan autumn fertilizer application amount should be based on the size of the jujube tree, nutritional status, and the number of fruit to be determined, the general strain applied organic fertilizer 30 to 50 kilograms, superphosphate 1 to 1.5 kilograms, urea 0.5 kilograms.
The application skills combined with cultivating in the garden can be applied in the whole garden, in the radial groove or in the ring groove. The garden will be withdrawn and the fertilizer will be withdrawn evenly in the garden. In combination with turning the soil into the soil, the depth of tillage should be 20-25 cm. However, the shallow depth of application of this method can easily cause the roots to float, and is suitable for adult orchards and densely planted orchards. Radial grooves are less likely to cause root damage and are suitable for adult fruit trees. The trunk can be centered, digging 4 to 6 along the horizontal root extension direction, and 1 to 1.5 meters from the trunk. The depth of the ditch gradually deepens from the inside to the outside, generally 30 to 50 centimeters, narrow and wide inside, covered with soil after application. According to the experiment, deep application of basal fertilizer was better than shallow application without cutting the root system of jujube. The ring groove method is mostly used for saplings, and the annular groove is located at the outer edge of the crown projection, with a groove depth of 30 to 50 cm. Every year, as the crown expands, it moves outward.
After watering and protecting the jujube garden, the water should be poured 1 to 2 times after the autumn fertilization. This method can ensure sufficient moisture, which can not only make the fertilizer rot quickly, ferment and decompose, but also make the jujube tree not dry in the autumn. After watering, when the surface is semi-dry, you should loosen the soil and cover it with crop stalks, thatch and other materials.
Amino acids are carboxylic acids containing amino groups. Amino acids are the building blocks of protein for animal nutrition. Proteins in living things are made up of 20 basic amino acids.
Amino acids in human body through metabolism can play the following roles: (1) synthesis of tissue protein; (2) into acids, hormones, antibodies,
creatine and other ammonia containing substances; (3) to carbohydrates and
fat; (4) oxidation into carbon dioxide and water and urea, produce
energy.
Alanine for the synthesis of Alitame, intermediate amino acid Serine, nonessential amino acid Arginine
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