In agricultural production, the rational use of fertilizers plays a vital role in increasing crop yields, improving soil quality, and protecting the environment. Organic fertilizers and chemical fertilizers are the two main types of fertilizers, each with its own unique advantages and disadvantages. Therefore, the rational use of organic fertilizers and chemical fertilizers can maximize the effectiveness of fertilizers and achieve sustainable development of agriculture.
1. Advantages of using together
1. Improve the overall effect of fertilizers
The mixed use of organic fertilizer and chemical fertilizer can make the organic fertilizer mature faster and release nutrients faster. At the same time, the organic fertilizer can also absorb the nutrients in the chemical fertilizer, especially superphosphate and trace elements, which are easily fixed or lost through the soil. , thereby improving the utilization rate of chemical fertilizers.
2. Increase plant nitrogen intake
Organic fertilizers mixed with superphosphate or calcium-magnesium crushed fertilizers can promote the growth of original nitrogen-fixing bacteria in the soil, thereby improving the nitrogen supply to crops. This is of great significance for improving crop yield and quality.
3. Improve soil environment
Organic fertilizer is rich in organic matter, which can improve the soil structure, increase the soil aggregate structure, and improve the soil’s ability to retain water and fertilizer. Chemical fertilizers can quickly provide the nutrients needed by crops. The combination of the two can not only meet the needs of crop growth, but also gradually improve the soil environment.
4. Reduce obesity
Single use of chemical fertilizers or excessive use of chemical fertilizers can easily lead to soil acidification, nutrient imbalance and other problems. The addition of organic fertilizers can neutralize soil acidity, reduce the negative impact of chemical fertilizers on soil, and maintain soil ecological balance.
2. Suggestions on matching proportions
1. Overall proportion
In most cases, the ratio of organic fertilizer and chemical fertilizer can be roughly controlled at about 50%:50%, that is, half organic fertilizer and half chemical fertilizer. This ratio is considered reasonable around the world and helps balance soil nutrients, improve soil structure, and increase crop yield and quality.
If conditions permit, it is recommended to use organic fertilizers as the main fertilizer and chemical fertilizers as the supplement. The application ratio of organic fertilizers and chemical fertilizers can be around 3:1 or 4:1. But please note that this is only a rough reference ratio, not absolute.
2. Crop specificity
Fruit trees: For apples, peach trees, lychees and other fruit trees, although their needs for nitrogen, phosphorus and potassium are slightly different, there is not much difference in the amount of organic fertilizer applied. Generally speaking, about 3,000 kilograms of organic fertilizer per acre of base fertilizer is a more appropriate range. On this basis, appropriate amounts of chemical fertilizers can be added according to the growth stage and nutrient needs of the fruit trees.
Vegetables: Vegetable crops require large amounts of fertilizer and high yields, and have an urgent need for nutrients. On the basis of rational application of chemical fertilizers, the amount of organic fertilizer per acre should be appropriately increased. The specific ratio can be adjusted according to the vegetable type and growth cycle.
Field crops: For field crops such as rice, wheat and corn, the amount of organic fertilizer or farmyard manure applied per mu should not be less than 1,500 kilograms. At the same time, combined with local soil conditions, appropriate amounts of chemical fertilizers can be added to meet the needs of crop growth.
3.Soil conditions
The nutritional status of the soil is good: When the nutritional status of the soil is good, the proportion of chemical fertilizer input can be appropriately reduced and the proportion of organic fertilizer can be increased. This will help further improve soil structure and increase soil fertility.
Poor soil quality: In the case of poor soil quality, the proportion of organic fertilizer input should be increased to improve the soil environment and provide more nutrient support. At the same time, appropriate amounts of chemical fertilizers should be added to meet the urgent needs of crop growth.
Post time: Aug-05-2024
