What are the types of irrigation and fertilization? How do I use it?

How many kinds of irrigation fertilizer? How to use it well? Please guide the irrigation fertilizer is roughly divided into the following categories: The first category, a large number of elements, including nitrogen, potassium, phosphorus, calcium fertilizer, magnesium fertilizer, sulfur fertilizer and other single fertilizers, but also can 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. This kind of irrigation fertilizer is the main irrigation fertilizer, the largest production, the most use, can be mixed with a variety of other irrigation fertilizer use. The second category, macroelements plus trace elements, is to add zinc fertilizer, boron fertilizer, iron fertilizer, manganese fertilizer, copper fertilizer, molybdenum fertilizer, chlorine fertilizer, etc. on the basis of the above fertilizers, and can also be several kinds of compound fertilizers, which are also soluble in water, and can not react, can not produce precipitation, and the application amount 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. However, this kind of irrigation fertilizer has certain technical requirements when it is compounded, so it is necessary to adopt coordination technology and chelation technology to avoid precipitation problems and fertilizer antagonism problems. The third category, trace elements, zinc fertilizer, boron fertilizer, iron fertilizer, manganese fertilizer, copper fertilizer, molybdenum fertilizer, chlorine fertilizer based trace element irrigation fertilizer, generally for several kinds of mixed compound, and add a certain chelator, increase the absorption of plants to them, reduce the adsorption and solidification by soil, generally the 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. The fourth category, amino acids, is 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. The fifth category, humic acid, is a kind of fertilizer extracted from weathered coal as the main raw material 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. The sixth category, other categories, including chitin, other organic matter, industrial fermentation fertilizer, bacterial fertilizer, etc., they have yield increase effect, can be used as irrigation fertilizer. This type of fertilizer is generally used as a special fertilizer, such as improving the quality of some crops and enhancing disease resistance. The following points should be paid attention to when applying flush fertilizer: First, a large number of applications of irrigation and fertilization 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. For example, adding a small amount of synergistic sodium, a-naphthalene acetic acid sodium, synergistic amine (DA-6), etc. in the flushing fertilizer can promote the vitality of plants, promote the growth of roots, increase the absorption of fertilizer, and make the fertilizer effect fast, high and significant. Second, a variety of fertilizer compound irrigation, because our country's agricultural characteristics are small peasant economy, that is, a household for the unit of separate farming, sowing, fertilization, therefore, soil fertilizer situation is very different and it is not easy to uniformly promote the application of a certain fertilizer. Therefore, as scientific and technological workers, manufacturers and technical extension personnel, farmers should be advised to mix and apply multiple fertilizers to solve the problem of lack of certain nutrients in plants and increase the performance effect and actual effect of fertilizers. Third, master the nutrient requirements of various crops, such as leafy vegetables, grass crops need more nitrogen, we have to rush nitrogen fertilizer; legumes, eggplant fruit need more phosphorus, potassium, we have to rush phosphorus, potassium fertilizer. The right medicine has the effect of getting twice the result with half the effort and improving fertilizer efficiency. Fourth, 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. Fifth, pay attention to several fertilizers can not 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. In short, irrigation and fertilization has been an important means of fertilizer application, we should constantly summarize the law, scientific irrigation and fertilizer, in order to achieve the best yield effect. Click for more water soluble fertilizer application technology Click for more fertilizer application technology