How to Choose Compound Fertilizer? A Detailed Guide to Selection Methods and Tips
Compound fertilizer is used very widely in planting and production. Compound fertilizer has sufficient and comprehensive nutrients and very high content. It can meet the nutrients needed for the growth of most crops, and when we apply compound fertilizer, we must do a good job of selecting compound fertilizer according to the actual situation. So how exactly should we choose compound fertilizer? Today the editor will give you a brief introduction. Let's take a look below!
1. Consider the soil quality
When choosing compound fertilizer, the first thing we must consider is the soil quality. Different soil properties mean the suitable types of compound fertilizer will also differ somewhat. For example, for some slightly alkaline soils with low organic matter content and a lack of available nitrogen and phosphorus, then when applying compound fertilizer, acidic nitrogen-phosphorus-potassium compound fertilizer should be the main type. For example, monoammonium phosphate or humic acid type compound fertilizer. On the contrary, if it is red clay or acidic loam, then the compound fertilizer should mainly be chemically alkaline, with common examples such as diammonium phosphate.
2. Crop variety
Crop variety will also produce some differences in the choice of compound fertilizer. When planting field crops, compound fertilizer should mainly be nitrogen-phosphorus fertilizer, and if it is a wheat field or a field with higher yield, then ternary compound fertilizer should be the main type. Then for some crops planted more densely, such as rice and millet, powdered compound fertilizer should be applied. On the contrary, for sparsely planted crops, the type of compound fertilizer should be granular. In addition, for legume crops, root and tuber crops, etc., the suitable types of compound fertilizer are all different.
3. Mixed use with single-element fertilizers
The nutrient elements in compound fertilizer are fixed, so when applying compound fertilizer, if you want to be able to increase yield normally, then we also need to combine it with an appropriate amount of single-element fertilizer, so as to meet the crop's demand for different nutrients during different growth periods. For example, when planting crops such as rice and wheat, during their growth period, the demand for nitrogen is relatively large. If the compound fertilizer is mainly diammonium phosphate and other types with little nitrogen and much phosphorus, then the amount of phosphorus element must be calculated, and then the corresponding single-element nitrogen fertilizer should be supplemented for it.
3. Application method
The application method of compound fertilizer will also have a certain influence on its selection. If it is applied as a base fertilizer, then the compound fertilizer should mainly be granular, and the harder the better, which can effectively improve fertilizer efficiency. If it is applied deeply, then compound fertilizer containing ammonium nitrogen should be the main type, which can improve soil adsorption rate and avoid fertilizer leaching, and can be applied on most soil types and crops. Dryland crops should choose compound fertilizer with nitrate nitrogen. If it is used as a seed fertilizer, then attention should be paid to the nitrogen content, which must not be too high, to avoid burning seeds and seedlings.
The above is a brief introduction to how to choose compound fertilizer. That is all for today's introduction. This article is for reference only, and I hope it can help everyone!