[The role and use of potassium dihydrogen phosphate in common fertilizers] Potassium dihydrogen phosphate is a commonly used chemical fertilizer, and its function is applicable to almost all types of crops such as various types of cash crops, grain and oil, fruits and vegetables.
What is the role of potassium dihydrogen phosphate?
Through the collection and consolidation of the actual use effects of various crops, these effects have fully proved that potassium dihydrogen phosphate has many excellent effects such as significantly increasing yield and income, improving crop fruit quality, lodging resistance, resistance to pests and diseases, and strong seeds. It has the effect of overcoming the nutritional deficiencies caused by the decline of the absorption capacity of root aging in the late stage of crop growth.
What is the nutrient content of potassium dihydrogen phosphate?
Potassium dihydrogen phosphate is a new high-concentration phosphorus-potassium binary compound fertilizer, which contains about 52% phosphorus pentoxide and about 34% potassium oxide.
What is the application of potassium dihydrogen phosphate?
Potassium dihydrogen phosphate can be applied in a variety of ways: spraying, flushing, dropping, rooting, root transplanting, seed soaking, and base application. The period of use of different crops is also different.
Reasonable application method
1. Spraying method: Focus on spraying the back of the leaf to strive for the best absorption effect. Generally, foliar spray is the main application.å–· Spray once every 7~10 days, even spray 2~3 times.
2. Spraying time and concentration: It is best to spray in the critical period or peak period of phosphorus and potassium absorption of crops. For example: external fertilization, the general seedling concentration is 0.05%~0.1%, the middle and late period can reach 0.2%~0.3%, and the foliar spray is applied; in the growth period, 0.2%~0.3% potassium dihydrogen phosphate solution is used to spray the leaves. It can make its branches strong and leafy; spraying 2~3 times of 0.3% potassium dihydrogen phosphate solution in the bud stage can make its flowers large and colorful, and the color is gorgeous.
3, mixing situation: potassium dihydrogen phosphate can be mixed with most of the acidic pesticide fertilizer, 0.5% ~ 1% potassium dihydrogen phosphate solution pH between 4.6 ~ 6, generally does not cause precipitation with other substances.
When applying potassium dihydrogen phosphate fertilizer, the following points must be noted:
1. Correctly judge the symptoms of phosphorus deficiency and potassium deficiency in plants. Because the two elements of phosphorus and potassium are highly fluid in the body, the deficiency is often manifested in the old leaves and stems.
2. Under normal circumstances, when the plant is deficient in potassium, the leaves of the base stem are motley or green. The leaf margin is cupped or wrinkled, necrotic spots between the veins or the tip and leaf margin, and the stem of the plant is weak; when the phosphorus deficiency is serious, the plant is dark, often red or purple, the base leaves are yellow, and the stem is short. Fine, young leaves of the young leaves are chlorotic.
How can I buy high quality potassium dihydrogen phosphate?
Regarding how to identify the authenticity of potassium dihydrogen phosphate, many agricultural veterans have proposed many methods of identification: including smelling, burning with fire, looking at color, mixing with potassium dihydrogen phosphate and baking soda, etc. These identification methods have certain Reason, but will farmers really use these tools to buy potassium dihydrogen phosphate? If this is the case, it would be too cumbersome. Moreover, in the busy season, farmers have so much leisure time to engage in the authenticity identification of potassium dihydrogen phosphate.
Potassium dihydrogen phosphate is a common fertilizer and has a good use value. It has a great effect on the growth of crops, but you also need to master the skills when using it, otherwise it will be counterproductive.
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