Time and method of fertilization for Cucumber

The fertilization time of cucumber is mainly in germination stage, early flowering stage and fruiting stage. Germination period: apply sufficient base fertilizer, about 4-5 kg organic fertilizer per mu, can be mixed with appropriate amount of calcium superphosphate. Early flowering stage: the first topdressing is mainly late-acting organic fertilizer, it is necessary to control the amount of nitrogen fertilizer, increase high potassium water-soluble fertilizer containing humic acid, and spray foliar fertilizer. Fruiting period: topdressing is needed every week, and once every two harvests, fertilization is applied at intervals of available fertilizers such as human and animal manure and chemical fertilizer.

Fertilization time for cucumbers

1. Germination period

The main results are as follows: (1) the main purpose of this period is to promote the emergence of seeds and improve the survival rate.

(2) during this period, the demand for nutrients is relatively small, so we only need to ensure that the base fertilizer is sufficient, and the base fertilizer is mainly organic fertilizer.

(3) Organic fertilizer is about 4000-5000 kg per mu, and it can also be mixed with 20-30 kg of calcium superphosphate.

2. Seedling stage

The main results are as follows: (1) this period is mainly the key period of flower bud differentiation and the establishment of early yield.

(2) at this time, we only need to pay attention to field management, water control and ventilation.

3. Early flowering stage

The main results are as follows: (1) this period is not only the most critical stage of nutritional and reproductive growth, but also the stage in which both occur together. The early flowering stage is designated to be planted to the stage of the first flower, which is about 25 days.

(2) the first topdressing is needed in this period, which is dominated by delayed organic fertilizer, which is beneficial to increase the leaf area and the number of female flowers.

(3) it is necessary to properly control the amount of nitrogen fertilizer, otherwise it will result in plant type, such as broad leaves, stout stems, long internodes and long petioles.

(4) the special humic acid foliar fertilizer can be sprayed on the leaf surface by adding high potassium water-soluble fertilizer containing humic acid.

4. Result period

(1) this period is a critical period for the formation of yield, and great attention should be paid to the supply of water and fertilizer.

(2) during this period, topdressing is needed once a week, but also according to the situation of harvest. Basically, topdressing is needed for every two harvests.

(3) fertilization is applied at intervals between human and animal manure and chemical fertilizer. this kind of fertilizer belongs to quick-acting fertilizer and can be absorbed by crops more quickly.

(4) when topdressing, trace elements such as calcium, iron, zinc and boron should also be added. 1% urea and 0.5 potassium dihydrogen phosphate can be used for foliar spraying.

II. Fertilization methods for cucumbers

1. When fertilizing cucumbers, we must apply organic fertilizer, which is mainly rotten organic fertilizer, which can provide comprehensive nutrition to cucumbers.

2. Mature organic fertilizer can also improve the soil, using about 7500 kilograms per hectare.

3. Organic fertilizer can be eaten together with phosphate fertilizer and potash fertilizer, about 1000 kg per hectare.

4. water and fertilizer should be replenished in time for each harvest, and the fertilizer should be integrated into the water and applied into the border.

5. Topdressing should follow the principle of light application and frequent application. Topdressing should be carried out once a week. The amount of urea used each time is about 150-200 kg per hectare, and topdressing is needed for 5-6 times during the whole growing period.

6. Potash fertilizer should be re-applied in the growing period, which can enhance the disease resistance and improve the quality of cucumber.

7. When applying foliar fertilizer, 1000 times of Kesi plant growth hormone (3.4% titanium citrate water agent) can be sprayed twice, or 0.2% potassium dihydrogen phosphate solution can be sprayed 2-3 times in the middle of growth.

8. Cucumber can also be fertilized with carbon dioxide, and the time of carbon dioxide topdressing can start after planting slow seedlings. if the plant grows very vigorously, it can be carried out after the flowering and fruiting period. the general use time is about 1 hour after sunrise, and the application time is more than 2 hours, which can increase the yield of cucumber.