What are the precautions for using compound fertilizer? Keep these points in mind
Compound fertilizer is a fertilizer variety very familiar to many growers. It is also very common in China. Compound fertilizer contains a large amount of nutrient elements, which can effectively promote crop growth, increase yield, and ensure benefits. However, there are also many points that require our attention when using compound fertilizer. So what exactly are they? Below, the editor brings you the precautions for using compound fertilizer. Let's take a look!
1. It cannot completely replace organic fertilizer
Although compound fertilizer is mainly based on multiple elements, we cannot completely replace organic fertilizer with it when applying it. We should also try to increase the application amount of decomposed organic fertilizer. Applying compound fertilizer together with organic fertilizer can effectively improve fertilizer effects and utilization rates. Applying organic fertilizer can not only improve soil structure and benefit the activity of beneficial microorganisms in the soil, but also avoid serious environmental pollution. At the same time, it can also reduce the continuous cropping obstacles caused by compound fertilizer.
2. Apply according to actual conditions
There are now very many types of compound fertilizer on the market. Although some compound fertilizers can control their nutrient ratio well according to the fertilizer requirements of crops and the distribution of soil fertility, because of differences in soil fertility, the growth requirements of crops will also differ. Therefore, we should mainly base this on the actual condition of the crops and apply an appropriate amount of straight fertilizer in combination, so as to maximize the fertilizer effect of compound fertilizer. For example, if the soil is deficient in nitrogen, then an appropriate amount of more nitrogen fertilizer should be applied. The supplementation of other nutrient elements follows the same principle.
3. Application method
The fertilizer effect of compound fertilizer lasts relatively long. Therefore, whether it is a three-element or two-element compound fertilizer, it is best to apply it as a base fertilizer. This is because compound fertilizer not only contains basic major elements such as nitrogen, phosphorus, and potassium, but also various medium and trace elements. At the same time, many crops have a relatively large demand for phosphorus and potassium fertilizer in the early growth stage. Therefore, phosphorus and potassium fertilizer must be applied early as a base fertilizer. Usually, the amount of compound fertilizer per mu should be kept at about 35kg. It should not be used as seedling fertilizer or topdressing in the middle and late stages, so as to avoid excessive nutrition causing crops to stay green and grow excessively.
4. Supplement quick-acting fertilizer
Although compound fertilizer has relatively many nutrient elements and its fertilizer effect lasts relatively long, its decomposition speed is very slow. Therefore, when applying compound fertilizer as a base fertilizer, we should, according to the fertilizer requirement pattern of the crop variety, promptly supplement quick-acting fertilizers such as quick-acting nitrogen fertilizer during topdressing. This avoids malnutrition in crops during the early stage due to lack of nutrients and meets the nutritional needs of crop growth.
The above is a brief introduction to the precautions for using compound fertilizer. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!