When is the best time to use organic fertilizer?

We often say that organic fertilizer and chemical fertilizer "match" the effect is good! But not mixed together and then used! Because commercial organic fertilizer and chemical fertilizer, urea, diammonium mixed together will have a chemical reaction, it is easy to cause amino volatilization rapid decomposition and melting, can not be used.

​​

Recommendations:

Sprinkle organic fertilizer and then chemical fertilizer or use chemical fertilizer first and then organic fertilizer! Whether it is machine spreading or artificial spreading, it is best to use it right away.

The effect of combined application of biological bacterial fertilizer, chemical fertilizer and organic fertilizer is the best. However, in order to achieve the best fertilization effect, but when combined application, we should pay attention to the following problems.

​

Pay attention to the application time

The effect of organic fertilizer is slow and should be applied in advance. Generally, the bottom fertilizer should be applied before sowing or before planting. It is best to choose fully fermented and mature organic fertilizer before use, and the effect of topdressing is not as obvious as that of base fertilizer in the later stage.

The effect of chemical fertilizer is quick, and it should be applied about a week in advance when it is used as base fertilizer, and topdressing should be applied before the critical period of crop nutrition or the peak period of nutrient absorption to meet its needs.

Biological bacterial fertilizer can play the role of bacteriostasis only after a large number of reproduction in the soil, so it should be applied early on the premise of colonization to make it have time to reproduce and grow. It can be applied into the soil together with organic fertilizer, or before or during planting.

​

Pay attention to the application method

The main function of organic fertilizer is to improve soil, at the same time, it can also provide nutrients, generally, it is necessary to apply organic fertilizer into soil before crops, so it is necessary to combine deep ploughing to make organic fertilizer and soil completely mixed together, so as to achieve the purpose of improving soil. organic fertilizer with humus should be used when soil problems are serious, which can improve soil environment, balance nutrition and increase soil aggregate structure.

In the base fertilizer, because the nutrients in the organic fertilizer are mainly phosphorus, potassium and nitrogen, it is necessary to apply less chemical fertilizer in combination with organic fertilizer. Phosphate fertilizer and potassium fertilizer can be applied as base fertilizer at one time, and the effect of topdressing is very poor because of its poor mobility, so phosphate fertilizer should be applied to the soil as base fertilizer.

It is best to use fully soluble available fertilizer as the main fertilizer for topdressing, which can be quickly absorbed by vegetables after decomposition and has little effect on soil.

​

Because of its low dosage, biological bacterial fertilizer can be concentrated in the planting hole or applied with organic fertilizer. In the later stage, the same biological fertilizer can be applied many times to strengthen the flora, to improve the ability of dissolving phosphorus and potassium and the effect of disease control. Pay attention to the application amount

Different crops have different growth stages, they need different amounts of fertilizer, neither more nor less. Fertilizer should be applied according to the proportion of fertilizer they need, and it should also be noted that the nutrients in the soil should be taken into account. It is best to carry out a soil test and fertilize according to the soil testing formula.