Spraying potassium formate foliar fertilizer can improve grape quality

Spraying potassium fertilizer outside grape roots, according to plant growth and soil potassium fertilizer situation, advocate low concentration, multiple spraying, both positive and negative leaves should be sprayed evenly. Potassium is closely related to many metabolic processes in plants, such as photosynthesis, respiration and synthesis of carbohydrates, fats and proteins. Potassium formate foliar fertilizer can promote the activation of enzymes. It has the advantages of high potassium content, high solubility, easy absorption, safety and harmlessness. It can spray potassium formate foliar fertilizer to improve the quality of grape fruit.

Potassium was absorbed and utilized by plants in ionic form. The root system of grape began to absorb potassium three weeks after germination, and the absorption rate increased gradually. The absorption peak was from flowering to turning-color period, which accounted for 50% of the total annual absorption fruit, and then the absorption rate decreased significantly from turning-color period to pre-harvest period. The second peak period of potassium absorption lasted about one month after harvest. Potassium supplementation of grape mainly depends on soil application. On the basis of increasing organic fertilizer application, potassium supplementation should be applied before and after flowering and after fruit harvest. In the first absorption peak period, spraying outside the root is a better method to apply soil at the same time.

1. Potassium fertilizer has no difference between high and low, but the effect after application should be analyzed in combination with the specific problems of water, temperature, crop and soil status. Potassium formate foliar fertilizer has a very high solubility (10 times or even tens of times as much as other potassium fertilizers) with less amount and better effect.

2. Under the conditions of low temperature, high humidity, hardening, acidification and salinization, organic potassium formate liquid fertilizer can be applied, and a good period should be selected, appropriate amount should be applied many times, as required.

3. Potassium, to a certain extent, corresponds to the effect of sodium on human beings. It is essential to regulate osmotic pressure, maintain appropriate body fluid concentration, and promote normal metabolism. "Observing crop growth, understanding soil conditions, and precisely selecting and applying" is the key. Potassium formate produced by CDchem can be used as foliar fertilizer, because the direct absorption and utilization of available nutrients by leaves has a higher nutrient utilization rate, and the absorption rate of nutrients by leaves is faster than that of roots, which is conducive to timely meeting the requirements of crop growth and development; at the same time, it can avoid reducing the effectiveness of soil by fixing certain nutrients.

The osmotic pressure gradient produced by potassium accumulation in the root system of crops can enhance water absorption and close the stomata of crop leaves to prevent water loss during drought and water shortage. Therefore, potassium can enhance crop resistance to disease, cold, drought, lodging and salt. Spraying potassium formate foliar fertilizer on the leaves can improve the quality of grapes and increase fruit setting, but attention should be paid to balanced fertilization regardless of which fertilizer is applied.