The growth of plants is inseparable from fertilizers. When plants are well absorbed, they can grow strong. However, many farmers react to the fact that the rate of chemical fertilizer absorption from households is extremely low, which seriously affects the normal growth of crops. So, how is the fertilizer effect poor? How to improve fertilizer utilization? Let’s take a look!

Reasons for poor fertilizer effect

1. Excessive nutrient elements affect the fertilization effect. Plants lacking certain elements will cause physiological obstacles and affect normal growth. However, if one element is excessive, it will affect the absorption of other elements, which will also hinder plant growth.

2. The effect of pH on the effect of fertilizer: when the pH value is in the range of 5.5-6.5, the fertilizer effect is better. For example, the nutrients such as iron, copper, manganese and zinc are highly effective at pH below 6.

3, the effects of different growth and long-term effects of fertilizer: vegetative growth period is mainly nitrogen, nitrogen, phosphorus, potassium and trace elements of balanced fertilizer; flower bud differentiation and flowering period is mainly based on phosphorus and potassium fertilizers, promoting root development and flowering.

4, the different physiological characteristics of plants affect the effect of fertilizer: when using special fertilizer, the corresponding other types of water soluble fertilizer should be used according to the actual physiological conditions.

5. Different media influence the effect of fertilizer: soil cultivation and soilless cultivation, the fertilizer formula is different.

6. Different water quality affects the effect of fertilizer: Apply acid fertilizer or soften water in hard water area, and regularly add calcium and magnesium fertilizer in soft water area.

7, fertilization time affects the effect of fertilizer: fertilization is good before 10 o'clock in the morning and after 4 o'clock in the afternoon, avoid fertilizing under noon sunlight, avoiding fertilization in rainy days.

8. The effects of fertilizer types on fertilizer efficiency: different flowers, different growth seasons using different formulas of fertilizers, slow-release fertilizers combined with water-soluble fertilizers, root application and foliar application, targeted fertilization, can reduce costs Improve fertilizer efficiency.

9. The imbalance of fertilizer content affects the effect of fertilizer efficiency: scientific fertilization is to promote the absorption of each element before avoiding antagonism.

How to improve fertilizer utilization

(1) When the lighting conditions are poor, it is necessary to apply less nitrogen fertilizer to prevent crops from being late and ripe.

(2) When the light is strong, apply fertilizer deep to prevent photolysis and volatilization.

(3) In the rainy season, nitrogen fertilizer should not be applied excessively, one crop is kept mad, the second is preventing fertilizer loss, and the third is anti-pollution water source.

(4) In the operation method, it should be noted that when the soil water content is high, it is better to apply light fertilizer, that is, the fertilizer concentration is higher, but the dosage should be less, and it should keep a certain distance from the crop plants. When the weather is dry, it is advisable to re-apply light fertilizer, or to reduce the amount of water and increase the number of watering.

(5) Combination of organic fertilizer and inorganic fertilizer: farmyard manure is organic fertilizer, which has complete nutrients and long-lasting fertilizer effect; chemical fertilizer is inorganic fertilizer, which has single nutrient content, high content and quick effect. The combination of organic fertilizer and inorganic fertilizer can be greatly shortened, and the fertilizer efficiency can be greatly improved. If the human and animal manure is combined with ammonium chloride, superphosphate and potassium chloride, it can increase the yield by 10%~15% compared with the same amount of fertilizer.

(6) Formulation Fertilization: The application of nitrogen, phosphorus, potassium and trace elements is called formula fertilization. According to the test, the utilization rate of nitrogen is 30%~38% for single application of urea, and the utilization rate of nitrogen can be increased to 58%~60% by formula application; the utilization rate of single application of phosphate fertilizer and phosphorus pentoxide is 12%~ 14%, the application of formula, the utilization rate increased to 35% ~ 38%; the utilization rate of single potassium chloride is only 31% ~ 35%, the application of formula, the utilization rate can be increased to 57% ~ 61%.

(7) Deep application of nitrogen fertilizer: The deep application of nitrogen fertilizer can effectively prevent nutrient loss and increase nitrogen utilization rate. According to the test: the ammonium bicarbonate is applied, the nitrogen utilization rate is 28.6%, and the deep application, the nitrogen utilization rate can be increased to 58.6%; the urea application, the nitrogen utilization rate is 42%, deep application, nitrogen utilization The rate can be increased to over 80%.