Formula and application method of flushing fertilization

Irrigation fertilization is a way of topdressing, in fact, is to dissolve solid quick-acting fertilizer in water and fertilize with water fertilizer, usually with water-soluble fertilizer, mainly nitrogen and potassium fertilizer, the two water-soluble strong, through the combination of fertilizer and water to let soluble nitrogen and potassium nutrients penetrate into the soil and then absorbed by the roots of crops, let's take a look at irrigation fertilization formula and use method!

Standard for formula of irrigation and fertilization

1. The formula of irrigation and fertilization is based on the scientific judgment of the soil's ability to supply fertilizer, and the judgment is based on the laboratory analysis of the soil and the crop test carried out on the soil. There are many soil types in China, and the soil fertility level is quite different. Different soils have different nutrient supply capacity. In production practice, the nutrient supply capacity of soil should be determined according to soil properties and soil nutrient content.

2, different crop types and even different varieties of the same crop, their fertilizer requirements are different, production should be based on the nutritional characteristics of crops and their nutrient requirements, scientifically determine the amount of fertilizer and fertilization methods.

3, although each crop in different periods, different environments for fertilizer demand characteristics are different, but as a key point of irrigation fertilizer flowering period needs fertilizer ratio is basically stable, you can use the commonly used irrigation fertilizer classification, select several suitable irrigation fertilizer formula, if you find a reasonable nutrient content, stable quality, good effect of fertilizer may wish to continue to use, so that not only can you better understand the effect of irrigation fertilizer, but also can reduce risk.

Classification of irrigation and fertilization varieties

1, a large number of elements: including nitrogen, potassium, phosphorus, calcium fertilizer, magnesium fertilizer, sulfur fertilizer and other single fertilizers, can also be compound fertilizer, compound fertilizer and formula fertilizer, but must be soluble in water, the general amount of use per mu is more than ten kilograms to dozens of kilograms.

2, a large number of elements plus trace elements, that is, on the basis of the above fertilizers add zinc fertilizer, boron fertilizer, iron fertilizer, manganese fertilizer, copper fertilizer, molybdenum fertilizer, chlorine fertilizer, etc., can also be several kinds of compound fertilizer, the same are soluble in water and can not react, can not produce precipitation, the amount of application per mu is more than ten kilograms to dozens of kilograms. This kind of irrigation fertilizer has better effect than single macroelement fertilizer, supplements trace elements, and has better effect on increasing yield and improving quality.

3, trace elements: zinc fertilizer, boron fertilizer, iron fertilizer, manganese fertilizer, copper fertilizer, molybdenum fertilizer, chlorine fertilizer based trace elements rushed fertilizer, generally for several kinds of mixed compound, and add a certain chelator, increase the absorption of plants to them, reduce soil adsorption and solidification, the general application amount per mu is between several hundred grams to several kilograms. This kind of fertilizer is applied to deficient plants, and it has remarkable effect on increasing yield and income for supplementing certain elements for lack of certain elements.

4, amino acids: amino acids are a variety of amino acids as the main raw materials, generally with industrial by-product amino acids, or hair, waste leather hydrolysis of amino acids, in order to improve the effect, generally add a variety of trace elements, due to its strong acidity, therefore, applied to the general acid is not too strong soil. The application rate per mu is generally ten to dozens of kilograms. It is better to apply it to the maximum efficiency period of plant nutrition.

5. Phytic acid: Phytic acid is a fertilizer extracted from weathered coal by acidification and alkalization. In order to enhance efficiency, a large number of elements are generally added, and due to their alkalinity, they are applied to acidic soils. The amount used per mu is generally several kilograms to dozens of kilograms. This kind of fertilizer has a good effect on improving soil and increasing plant drought resistance.

6, other categories: including chitin, algae, other organic matter, industrial fermentation fertilizers, bacterial fertilizers, etc., they have the effect of increasing production, can be used as irrigation fertilizer. Especially bacterial fertilizer, this kind of fertilizer not only has good yield increase effect, improve the quality of some crops, enhance resistance, but also can improve the physical and chemical state of greenhouse soil, prevent soil hardening, increase the number and variety of beneficial soil bacteria, reduce the occurrence of various soil-borne diseases, etc.

Application method of irrigation and fertilization

1. A large number of irrigation and fertilization applications in China are mainly in winter and applied to greenhouses. Due to the weak sunlight, low temperature and low ground temperature, the normal growth of plants could not be achieved despite the external heat source. Low activity of active bacteria in soil and underdeveloped root system of plants cause poor absorption of fertilizer and poor effect of irrigation and fertilization. Therefore, improving the vitality of plant roots and increasing the growth of plant roots are the necessary means of irrigation and fertilization.

2, mostly because our country's agricultural characteristics are small-scale peasant economy, that is, a household for the unit of separate farming, sowing, fertilization, so the soil fertilizer situation is very different, it is not easy to uniformly promote the application of a certain fertilizer.

3. Master the nutrient requirements of various crops. For example, leafy vegetables and grass crops need more nitrogen, so we need more nitrogen fertilizer. Legumes and eggplant need more phosphorus and potassium. We need more phosphorus and potassium fertilizer. The right medicine has the effect of getting twice the result with half the effort and improving fertilizer efficiency.

4, scientific rotation, a small amount of fertilizer for many times. Especially greenhouse crops, because they mainly rely on irrigation and water application, they are generally irrigated frequently, so that a small amount of fertilizer can be applied many times, such as leek, which can be applied once per crop, cucumber, eggplant, pepper and other eggplant fruits can be applied once per crop. And in each flushing application reasonable collocation of macro elements, trace elements and plant root growth promoters.

Note that several fertilizers cannot be mixed, otherwise the effect will be reduced or no effect. For example, ammonium bicarbonate cannot be mixed with strong acid fertilizer, amino acid fertilizer cannot be mixed with humic acid fertilizer, phosphoric acid fertilizer and zinc, manganese, iron, copper and other fertilizers should be mixed with chelators.