Principles and methods of fertilization with water-soluble fertilizer

As a new type of fertilizer, compared with traditional fertilizer, water-soluble fertilizer not only has various formulations, but also has very flexible application methods. it has developed rapidly in China in recent years, and it accords with the characteristics of continuous absorption of nutrients by plant roots. it can reduce the leaching loss caused by one-time large amount of fertilization. Do you know the principles and methods of applying water-soluble fertilizer? Let's get to know it.

1. Principles of fertilization

The most important fertilization principle of water-soluble fertilizer is a small number of times, this is because the plant root system has the characteristic of uninterrupted absorption of nutrients, so it is necessary to reduce one-time large-scale fertilization, because one-time large-scale fertilization will bring damage to plants and material loss. Water-soluble fertilizer is generally applied by leaching, irrigation or irrigation equipment, especially under the condition of drip irrigation, the root growth area is larger, so it is less dependent on soil nutrient supply and more dependent on drip irrigation. There are higher requirements for the reasonable proportion and concentration of nutrients, if the formula is not balanced, it will affect the growth of crops.

2. Rational irrigation

In terms of drip irrigation, the root layer depth can be kept moist, and the root layer depth varies greatly according to different crops. Shovel can be used to dig up the soil at any time to understand the specific depth of the root layer. Excessive irrigation will not only cause a waste of water resources, but also seriously leach nutrients below the root layer, waste fertilizer and reduce crop production. In particular, urea and nitrate nitrogen fertilizer are easy to lose with water. When other fertilizers are used together, water-soluble fertilizer is generally only used as topdressing, not instead of fertilizer, but reasonably, reduce the cost of fertilizer and give full play to the advantages of all kinds of fertilizer.

3. Matters needing attention in fertilization

First of all, when applying fertilizer by drip irrigation, drip water should be irrigated first, and fertilization will begin after the pipe is full of water. After the end of fertilization, drip water will be irrigated for 20-30 minutes immediately, and all the residual fertilizer liquid in the pipe will be discharged. Secondly, long-term use of drip irrigation and topdressing in greenhouse or temperature will cause surface nutrient accumulation and affect root growth, so drip irrigation under plastic film can be used to restrain the migration of salt to the surface. In addition, we should also pay attention to the uniformity of fertilization, drip irrigation fertilization in principle, the slower the better, especially for the elements with poor mobility in the soil, prolonging the fertilization time can greatly improve the utilization rate of difficult-to-move nutrients.

The above is an introduction to the principles and methods of water-soluble fertilizer fertilization. I hope it can help you. If you want to know more about it, please follow us.