Phosphorus, Potassium, Zinc's Disease Resistance
Phosphorus, potassium, and zinc increase the crop's adaptability to the external environment and increase its resistance. Phosphorus can increase the content of soluble sugars and phospholipids in crops, and reduce the loss of cell moisture, thus enhancing the ability of crops to resist drought and cold. Potassium can regulate the infiltration under the adverse conditions of high temperature, cold, salt damage, etc., to maintain the cell water content to some extent, and ensure the normal metabolic activity of crops. The application of potash fertilizer in potassium-deficient soil can reduce the diseases caused by fungi and bacteria, and it also has a preventive effect on pests and aphids. When the potassium supply is appropriate, it can reduce the rice leaf spot, leaf blight, rice blast, and sheath blight; reduce wheat head blight, sheath blight, powdery mildew, wheat rust; reduce cotton blight, Verticillium wilt. This is because potassium thickens the epidermis and stratum corneum of the cell, and pathogenic bacteria are less likely to invade. Zinc can enhance photosynthesis and increase photosynthetic efficiency under insufficient water supply and high temperature conditions. Zinc can also improve the plant's ability to resist low temperature and frost, and it is beneficial to winter wheat to resist frost infringement and safely overwinter. It can also reduce the permeability of chloride ions and sulfate ions and enhance salt resistance. Timely application of zinc fertilizer can also prevent diseases caused by zinc deficiency, such as the "dwarf disease" of rice; "flower whitening disease" of corn; "flower mosaic disease" of citrus; "leaflet" of peach, pear, plum, apricot and apple. disease".
Application method Phosphorus and potassium are a large number of elements that are necessary for crop growth. During application, attention must be paid to concentrated application, deep application, and layered application, concentrated application to the root system, and promotion of root absorption. Deep application and layered application of energy enable crops to grow. In the middle and late stages, phosphorus and potassium fertilizers were absorbed. In addition, the phosphorus fertilizer can also be used for extra-root fertilizer. Generally, the suitable concentration of dicotyledonous plants is 0.5% to 1%, and the suitable concentration of monocotyledonous plants is 1% to 2%. Zinc fertilizer is one of the trace elements needed for crop growth. It has poor fluidity in soil and is often used as a seed fertilizer, seed treatment, alfalfa root and extra-root fertilizer. When used as a fertilizer, it cannot be mixed with phosphate fertilizer and it is not necessary to apply it every year. Seed treatment can be soaked with 0.02% to 0.05% zinc sulfate solution before sowing. Foliar fertilization commonly used concentration is 0.05% ~ 0.2%, corn spray zinc concentration of 0.2% is better, suitable for early spraying, spraying the best seedling stage. Zinc deficiency in apple trees can be sprayed with 3% to 4% zinc sulfate solution one month before the early spring sprouting, and the concentration should be reduced to 1% to 1.5% after germination, and 0.2% from bud stage to full flowering stage; Can also be used 2% to 3% of zinc sulfate solution brushing year branches method.
The role of calcium and chlorine in disease resistance
The effects of calcium and chlorine inhibit the occurrence of diseases. Calcium can inhibit the invasion of fungi, inhibit the softening of fruits after harvest and the occurrence of physiological diseases, and can improve the quality of fruits, delay cell aging and promote fruit ripening. Appropriate application of calcium fertilizer can also reduce the umbilical rot of tomato and chilli peppers, the dry heartburn of Chinese cabbage, cabbage and lettuce, the brown spot of potato, the disease caused by the deficiency of apples such as bitter pox disease and pear black heart disease. Chloride can at least reduce the diseases of leaves and roots of 15 species of 10 crops, such as full-blown wheat, stripe rust of winter wheat, leaf rust of spring wheat, leaf blight, root rot of barley, stem blight of corn, and potato Hollow disease, brown heart disease and so on.
Method of application: Calcium is one of the essential elements for crop growth. Calcium fertilizer can be used as a base fertilizer and can also be applied as top dressing. Generally, calcium fertilizer with low solubility is used as base fertilizer; soluble calcium fertilizer is used as top dressing or top dressing fertilizer, such as calcium nitrate. With calcium chloride and other fruits and vegetables, calcium fertilizer is generally applied at the late growth stage and the concentration of foliar spray is 0.5%. Chlorine is one of the trace elements necessary for plant growth, but it does not show symptoms of chlorine deficiency in general. Chlorine-containing fertilizers include potassium chloride and ammonium chloride, which can be used as basal fertilizers or top dressings. When basal fertilizers are used, they must be applied one week before sowing or transplanting. When dressing fertilizers, they should avoid the chlorine sensitive period of seedlings. When using chlorine fertilizer, it is necessary to grasp the amount of use, but also to avoid chlorine-sensitive crops, such as beans, sweet potatoes, tobacco, apples, grapes and so on.
The role of sulfur and molybdenum
Sulfur, molybdenum action Sulfur contributes to the formation of enzymes and vitamins, can promote the formation of nodules in legumes, increase nodules dry weight and nitrogen fixation, and contribute to grain production. Sulfur is an essential element for the formation of chlorophyll and can promote photosynthesis and protein formation in crops. The application of sulphur to sulfur-deficient soils can increase crop yields. Molybdenum is an important component of nitrogenase, which can promote the growth and development of plant reproductive organs. For example, when molybdenum is deficient, corn plants have a tasseling delay, less pollen, small flowers and no starch, low sucrose activity, and poor germination ability.
Application method Sulfur is a medium-sized element needed for crop growth. In general, insoluble sulfur fertilizer is used as a base fertilizer application. Water-soluble sulfur-containing fertilizers can be used as base fertilizers, and can also be used as seed fertilizers, top dressings, or top dressings. General vegetables and peanuts, rice and other crops are more sensitive to sulfur, and timely application of sulfur fertilizer. Molybdenum is one of the trace elements necessary for plant growth. Molybdenum fertilizer can be used for seed treatment and can also be used as base fertilizer and extra-root fertilizer. The method commonly used for seed treatment is seed dressing, and 2 g of ammonium molybdate per kilogram of seed is used to prepare a solution with a concentration of 3% to 5%. When soaking, they are soaked in 0.05% to 0.2% ammonium molybdate solution for 8 to 12 hours. Relatively speaking, seed dressing is better than soaking. For top dressing, the spraying is usually carried out with 0.1% ammonium molybdate solution. For example, soybeans, peanuts, etc. are sprayed once at the initial flowering stage and full flowering stage, and the yield increasing effect is obvious.
Phosphorus, potassium, and zinc increase the crop's adaptability to the external environment and increase its resistance. Phosphorus can increase the content of soluble sugars and phospholipids in crops, and reduce the loss of cell moisture, thus enhancing the ability of crops to resist drought and cold. Potassium can regulate the infiltration under the adverse conditions of high temperature, cold, salt damage, etc., to maintain the cell water content to some extent, and ensure the normal metabolic activity of crops. The application of potash fertilizer in potassium-deficient soil can reduce the diseases caused by fungi and bacteria, and it also has a preventive effect on pests and aphids. When the potassium supply is appropriate, it can reduce the rice leaf spot, leaf blight, rice blast, and sheath blight; reduce wheat head blight, sheath blight, powdery mildew, wheat rust; reduce cotton blight, Verticillium wilt. This is because potassium thickens the epidermis and stratum corneum of the cell, and pathogenic bacteria are less likely to invade. Zinc can enhance photosynthesis and increase photosynthetic efficiency under insufficient water supply and high temperature conditions. Zinc can also improve the plant's ability to resist low temperature and frost, and it is beneficial to winter wheat to resist frost infringement and safely overwinter. It can also reduce the permeability of chloride ions and sulfate ions and enhance salt resistance. Timely application of zinc fertilizer can also prevent diseases caused by zinc deficiency, such as the "dwarf disease" of rice; "flower whitening disease" of corn; "flower mosaic disease" of citrus; "leaflet" of peach, pear, plum, apricot and apple. disease".
Application method Phosphorus and potassium are a large number of elements that are necessary for crop growth. During application, attention must be paid to concentrated application, deep application, and layered application, concentrated application to the root system, and promotion of root absorption. Deep application and layered application of energy enable crops to grow. In the middle and late stages, phosphorus and potassium fertilizers were absorbed. In addition, the phosphorus fertilizer can also be used for extra-root fertilizer. Generally, the suitable concentration of dicotyledonous plants is 0.5% to 1%, and the suitable concentration of monocotyledonous plants is 1% to 2%. Zinc fertilizer is one of the trace elements needed for crop growth. It has poor fluidity in soil and is often used as a seed fertilizer, seed treatment, alfalfa root and extra-root fertilizer. When used as a fertilizer, it cannot be mixed with phosphate fertilizer and it is not necessary to apply it every year. Seed treatment can be soaked with 0.02% to 0.05% zinc sulfate solution before sowing. Foliar fertilization commonly used concentration is 0.05% ~ 0.2%, corn spray zinc concentration of 0.2% is better, suitable for early spraying, spraying the best seedling stage. Zinc deficiency in apple trees can be sprayed with 3% to 4% zinc sulfate solution one month before the early spring sprouting, and the concentration should be reduced to 1% to 1.5% after germination, and 0.2% from bud stage to full flowering stage; Can also be used 2% to 3% of zinc sulfate solution brushing year branches method.
The role of calcium and chlorine in disease resistance
The effects of calcium and chlorine inhibit the occurrence of diseases. Calcium can inhibit the invasion of fungi, inhibit the softening of fruits after harvest and the occurrence of physiological diseases, and can improve the quality of fruits, delay cell aging and promote fruit ripening. Appropriate application of calcium fertilizer can also reduce the umbilical rot of tomato and chilli peppers, the dry heartburn of Chinese cabbage, cabbage and lettuce, the brown spot of potato, the disease caused by the deficiency of apples such as bitter pox disease and pear black heart disease. Chloride can at least reduce the diseases of leaves and roots of 15 species of 10 crops, such as full-blown wheat, stripe rust of winter wheat, leaf rust of spring wheat, leaf blight, root rot of barley, stem blight of corn, and potato Hollow disease, brown heart disease and so on.
Method of application: Calcium is one of the essential elements for crop growth. Calcium fertilizer can be used as a base fertilizer and can also be applied as top dressing. Generally, calcium fertilizer with low solubility is used as base fertilizer; soluble calcium fertilizer is used as top dressing or top dressing fertilizer, such as calcium nitrate. With calcium chloride and other fruits and vegetables, calcium fertilizer is generally applied at the late growth stage and the concentration of foliar spray is 0.5%. Chlorine is one of the trace elements necessary for plant growth, but it does not show symptoms of chlorine deficiency in general. Chlorine-containing fertilizers include potassium chloride and ammonium chloride, which can be used as basal fertilizers or top dressings. When basal fertilizers are used, they must be applied one week before sowing or transplanting. When dressing fertilizers, they should avoid the chlorine sensitive period of seedlings. When using chlorine fertilizer, it is necessary to grasp the amount of use, but also to avoid chlorine-sensitive crops, such as beans, sweet potatoes, tobacco, apples, grapes and so on.
The role of sulfur and molybdenum
Sulfur, molybdenum action Sulfur contributes to the formation of enzymes and vitamins, can promote the formation of nodules in legumes, increase nodules dry weight and nitrogen fixation, and contribute to grain production. Sulfur is an essential element for the formation of chlorophyll and can promote photosynthesis and protein formation in crops. The application of sulphur to sulfur-deficient soils can increase crop yields. Molybdenum is an important component of nitrogenase, which can promote the growth and development of plant reproductive organs. For example, when molybdenum is deficient, corn plants have a tasseling delay, less pollen, small flowers and no starch, low sucrose activity, and poor germination ability.
Application method Sulfur is a medium-sized element needed for crop growth. In general, insoluble sulfur fertilizer is used as a base fertilizer application. Water-soluble sulfur-containing fertilizers can be used as base fertilizers, and can also be used as seed fertilizers, top dressings, or top dressings. General vegetables and peanuts, rice and other crops are more sensitive to sulfur, and timely application of sulfur fertilizer. Molybdenum is one of the trace elements necessary for plant growth. Molybdenum fertilizer can be used for seed treatment and can also be used as base fertilizer and extra-root fertilizer. The method commonly used for seed treatment is seed dressing, and 2 g of ammonium molybdate per kilogram of seed is used to prepare a solution with a concentration of 3% to 5%. When soaking, they are soaked in 0.05% to 0.2% ammonium molybdate solution for 8 to 12 hours. Relatively speaking, seed dressing is better than soaking. For top dressing, the spraying is usually carried out with 0.1% ammonium molybdate solution. For example, soybeans, peanuts, etc. are sprayed once at the initial flowering stage and full flowering stage, and the yield increasing effect is obvious.
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