How to use compound fertilizer for the best results? Master these key points of use
Compound fertilizer is a type of fertilizer that is used very widely in our daily lives. For growers, compound fertilizer is the key to ensuring crop yields. However, when using compound fertilizer, there are not only many precautions, but also many key points of use. So what are the key points for using compound fertilizer? Today, the editor will give you a brief introduction. Let's take a look below!
1. Use concentration
The concentration of compound fertilizer varies quite a lot, so when using compound fertilizer, the first key point of use is to pay attention to its use concentration. Most compound fertilizers are generally formulated according to the soil type of the planting area and the fertilizer requirements of the crops. Therefore, the compound fertilizers currently on the market are divided into three categories: high, medium and low concentration. The nutrient content of low-concentration compound fertilizer is about 25%, medium-concentration is about 35%, and high-concentration exceeds 40%. So you should choose compound fertilizer with a suitable concentration according to the differences in planting area and crops. Among them, high-concentration compound fertilizer is mostly used on cash crops and has the advantages of good quality, little residue and high utilization rate.
2. Must not touch the seeds
When using compound fertilizer, you must be careful not to let it directly touch the seeds. This is especially true for high-concentration compound fertilizer, because the concentration of compound fertilizer is very high. Therefore, if compound fertilizer comes into direct contact with the seeds, it will have a great impact on the emergence of the crops. It easily causes seedling burn and root burn, which instead affects the yield. So when sowing, whether the sowing method is band application or hole application, you must keep a distance of at least 5 cm from the compound fertilizer. Remember that compound fertilizer must not be applied in the same hole as the seeds, to avoid fertilizer damage.
3. Scope of use
Because there are now very many types of compound fertilizer, the raw materials in their formulations also differ, so you should pay attention to the scope of use of their nutrients. With different concentrations, the raw materials used in the compound fertilizer will also differ. Therefore, when using it, choose and apply it according to soil type and crop variety. For example, if it is a compound fertilizer containing nitrate nitrogen, then it must not be used on leafy vegetables, and compound fertilizer containing ammonium ions must not be used in paddy fields, on saline-alkali land, and so on. Otherwise, it will not only reduce fertilizer efficiency, but may also cause crop toxicity.
4. Deep application and covering with soil
Compound fertilizer contains at least two or more major elements. Nitrogen, phosphorus and potassium are the most basic among them. The nitrogen element easily volatilizes and is easily lost by being washed away by rainwater. The phosphorus and potassium elements are also easily fixed by the soil. In particular, phosphorus moves little in the soil, so if it is applied to the surface, the crop roots cannot effectively absorb and use it. It is also very unfavorable for the deep rooting of crop roots, and if it is dry, the fertilizer cannot be dissolved, and its fertilizer efficiency will be even worse. Therefore, when applying compound fertilizer, it is best not to broadcast it on the surface, but to mainly apply it deeply and cover it with soil.
The above is a brief introduction to the key points for using compound fertilizer. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!