Matters needing attention in the use of compound fertilizer

Compound fertilizer is a kind of fertilizer that many growers are very familiar with. It is also very common in China, compound fertilizer contains a large number of nutrient elements, which can effectively promote crop growth, increase yield and ensure efficiency. However, there are many things we need to pay attention to in the use of compound fertilizer. So what are the specific ones? The following editor brings you notes on the use of compound fertilizer, let's take a look at it!

1. Organic fertilizer can not be replaced completely.

Although compound fertilizer is mainly multi-element, we can not completely replace organic fertilizer when we apply it. And we should try our best to increase the application amount of mature organic fertilizer. The combined application of compound fertilizer and organic fertilizer can effectively improve the fertilizer effect and utilization rate. The application of organic fertilizer can not only improve the soil structure, but also benefit the activities of beneficial microorganisms in the soil. It can also avoid serious environmental pollution and reduce the continuous cropping obstacles caused by compound fertilizer.

2. Apply according to the actual situation

At present, there are many kinds of compound fertilizer on the market. Although some compound fertilizers can control their nutrient distribution ratio according to the fertilizer demand characteristics of crops and the distribution of soil fertility. However, due to different soil fertility, the growth requirements of its crops will also be different. Therefore, we should mainly according to the actual situation of crops, combined with the application of an appropriate amount of elemental fertilizer, in order to maximize the fertilizer effect of compound fertilizer. For example, if the soil is short of nitrogen, then appropriate more nitrogen fertilizer should be applied. The same is true of other nutritional supplements.

3. Application method

The fertilizer effect of compound fertilizer lasts for a long time, so whether it is ternary or binary compound fertilizer, it is best to apply it as a base fertilizer. Because compound fertilizer contains not only a large number of basic elements such as nitrogen, phosphorus and potassium, but also a variety of medium and trace elements. At the same time, many crops in the early growth period, the demand for phosphorus and potassium fertilizer is relatively large. Therefore, phosphorus and potassium fertilizer must be used as a base fertilizer early. Usually, the amount of compound fertilizer per mu should be kept around 35kg, and it should not be used as seedling fertilizer or topdressing in the middle and later stage, so as to avoid excessive nutrition and lead to overgrowth of crops.

4. Replenish available fertilizer

Although there are more nutrient elements in compound fertilizer, the duration of fertilizer effect is also longer. However, the decomposition rate of fertilizer is very slow, so when we apply compound fertilizer as base fertilizer, we should supplement available nitrogen fertilizer and other available fertilizer in time according to the fertilizer demand law of crop varieties. Avoid malnutrition due to lack of nutrition in the early stage, and meet the nutritional needs of crop growth.

The above is a brief introduction to the matters needing attention in the use of compound fertilizer. That's all for today's introduction. This article is for reference only. I hope it can help you all.