High-nitrogen water-soluble fertilizer: In the early growth of melons and fruits, high-nitrogen water-soluble fertilizer can effectively promote the growth of plants and leaf expansion. This is very helpful to increase the photosynthetic area and improve the overall health level of the plant.

It can correspond to the formula of water-soluble fertilizer (30-10-10 appropriate application point fertilizer grade ammonium polyphosphate 18-58-0 to promote rooting, and promote the main stalk of the crop strong, easy to be combined with water soluble fertilizer containing humic acid 120-30-50 organic matter, humic acid to promote crop root growth)

High-phosphorus water-soluble fertilizer: In the flowering and fruit stage of melons and fruits, the application of high-phosphorus water-soluble fertilizer is particularly important. Phosphorus plays a key role in promoting flower bud differentiation and improving fruit quality and yield.

Can correspond to water soluble fertilizer formula (10-50-10, 10-40-10, 18-58-0, easy to combine with water soluble fertilizer containing humic acid 50-100-50 organic matter, humic acid to promote crop root growth)

High potassium water-soluble fertilizer: Potassium also plays an irreplaceable role in the growth process of melon and fruit vegetables. High potassium water-soluble fertilizer can promote the expansion of fruit and the accumulation of sugar, so as to improve the taste and quality of fruit.

It can correspond to the formula of water-soluble fertilizer (12-5-35, 15-5-35, 15-5-30, 19-10-30, etc., too high potassium source will cause the crop to expand and the fruit is not easy to expand, so the application of potassium type is relatively good, easy to be combined with water soluble fertilizer containing humic acid 30-50-120 organic matter, humic acid to promote crop root growth)

Balanced water-soluble fertilizer: In the whole growth cycle of melon and fruit vegetables, balanced water-soluble fertilizer is also an indispensable choice. It can provide the various nutrients needed by the plant to ensure the healthy growth of the plant and high yield and quality.

It can correspond to the formula of water-soluble fertilizer (20-20-20, 19-19-19 and other NPK balanced formula, if the formula contains the best magnesium element, promote the generation of crop chlorophyll, during which it can be combined with fertilizer grade ammonium polyphosphate to promote the physiological requirements of crop phosphorus, easy to be combined with water soluble fertilizer containing humic acid 70-60-70 organic matter, humic acid to promote crop root growth)

In addition, there are some water-soluble fertilizers specially developed for melon and fruit vegetables, which usually contain some special trace elements and bioactive substances, which can further improve the yield and quality of melon and fruit vegetables.

It should be noted that when using a large amount of elemental water-soluble fertilizer, it should be reasonably matched and applied according to the specific growth needs and soil conditions of melon and fruit vegetables. At the same time, follow the principle of appropriate amount and timely to avoid waste and environmental pollution caused by excessive use.

1. Germination stage: During this period, grape plants need a lot of nitrogen to promote flower bud differentiation and leaf growth. Therefore, the application of water-soluble fertilizer should be based on high-nitrogen fertilizer, and combined with an appropriate amount of phosphate and potassium fertilizer to meet the needs of other nutrients. It can correspond to the formula of water-soluble fertilizer (high-nitrogen type 30-10-10 and self-use with high-nitrogen raw materials, easy to use water-soluble fertilizer containing humic acid 120-30-50 containing organic matter and humic acid to promote crop root growth)

2. Flowering stage: Before and after flowering, in order to improve pollination quality and fruit setting rate, water-soluble fertilizer with moderate nitrogen content and rich in phosphorus and potassium should continue to be supplied to support flower development and subsequent fruit formation. It can correspond to water-soluble fertilizer formula (high phosphorus type 10-40-10, 10-50-10, fertilizer grade ammonium polyphosphate 18-58-0 and other high phosphorus content formula. The use of ammonium polyphosphate can improve the absorption and utilization of phosphorus in crops. Most of the high-phosphorus products are orthophosphate, which is easy to react with metal elements to produce metal phosphate, resulting in nutrient loss and can not be absorbed by crops. Ammonium polyphosphate is not easy to react and can resolve the soil solidified nutrients for crops to absorb and use. Easy to match water soluble fertilizer containing humic acid 50-100-50 Organic matter, humic acid to promote crop root growth)

 3. Fruit stage: At this stage, the nutritional requirements turn to high potassium fertilizer to promote the expansion and sweetening of the fruit, and at the same time, an appropriate amount of phosphorus and other trace elements, such as calcium and magnesium, are also needed to ensure the quality of the fruit and enhance the storability. Can correspond to water-soluble fertilizer formula (high potassium 12-5-35, 15-5-35, 12-6-40, 13-6-38, easy to match with water-soluble fertilizer containing humic acid 30-50-120 containing organic matter, humic acid to promote crop root growth)

4. Maturity stage: When the grapes enter the maturity stage, gradually reduce the application of nitrogen fertilizer to avoid excessive plant growth and affect the accumulation of sugar in the fruit. At this time, more attention should be paid to maintaining the supply of potash fertilizer in order to facilitate the final ripening and quality improvement of fruits.

In terms of grape roots, organic matter, amino acid, bactericide and fertilizer grade ammonium polyphosphate should be applied together to ensure the growth of crop roots. When low fertilizer was applied after pruning, the combination of fertilizer grade ammonium polyphosphate could promote the germination of new shoots.