What kind of fertilizer should be applied during the growing period of climbing herbaceous plant cucumber? How much fertilizer does one mu of land use?

Cucumber, also known as cantaloupe, thorn melon, king melon, Qin melon, cucumber, etc., is a common vegetable in our country, and if you want to grow cucumber well, in addition to the basic management work, we should also strengthen the management of water and fertilizer. What kind of fertilizer should be applied to cucumber during its growing period? How much fertilizer does one mu of land use?

What kind of fertilizer should be used during the cucumber growing period?

The nutrient demand of cucumber was small in the early growth stage, and the nutrient uptake increased significantly with the advance of the growth period, and reached the absorption peak at the melon-bearing stage. During the whole growth period, the amount of nitrogen uptake increased continuously and increased sharply in the fruit harvest period. Cucumber is a nitrate-loving crop. When only supplying ammonium nitrogen, the leaves become smaller, the growth is slow, and the absorption of calcium and magnesium decreases. And the physiological obstacle of calcium deficiency often occurs, which reduces the yield. The phosphorus uptake of cucumber was less in the initial stage, but increased in the fruit expansion period and harvest period, and Ziguoling was used. Cucumber absorbs the most potassium, followed by nitrogen.

Cucumber is suitable to be cultivated in loose, fertile and breathable soil, heavy soil is not conducive to cucumber root development, and the soil with high organic matter content can balance the contradiction that cucumber root system likes moisture but not waterlogging, fertilizer but not fertilizer tolerance. The growth cycle of cucumber can be divided into germination stage, seedling stage, vine stage and flowering and fruiting stage.

The amount of fertilizer applied per mu of cucumber during the whole growth period is commercial organic fertilizer 400~450kg, nitrogen fertilizer 14~18kg, phosphate fertilizer 6~8kg, potassium fertilizer 9~11kg. Organic fertilizer is used as base fertilizer, nitrogen and potassium fertilizer is divided into base fertilizer and topdressing, each time the amount of topdressing is evenly distributed, phosphate fertilizer is all used as base fertilizer, chemical fertilizer and organic fertilizer are mixed.

How to apply fertilizer during the growing period of cucumber

1. Base fertilizer: farm manure was applied with commercial organic fertilizer 400~450kg, urea 4~5kg, diammonium phosphate 13~17kg, potassium sulfate 3-4kg per mu.

2. Topdressing in the early melon stage: urea 7~8kg and potassium sulfate 5~6kg were applied per mu in the early melon stage.

3. Topdressing in full-blooming period: the fruiting period of cucumber is longer, with the harvest of cucumber, nutrients are constantly consumed, foliar fertilizer is needed to ensure nutrient supply, otherwise cucumber will be premature senescence due to lack of fertilizer, effective harvest time will be shortened and yield will decrease. Topdressing can be done once every 10 days or twice according to the harvest situation. In order to promote the expansion of melons and fruits and improve the yield and quality.

4. Extra-root topdressing: 1% urea solution can be sprayed on the leaves during the peak period, 0.5% potassium dihydrogen phosphate can be sprayed on the leaves in order to supplement the deficiency of phosphorus and potassium elements, and trace element water-soluble fertilizers should be added in time when the soil trace elements are insufficient. 0.1% borax or multi-element micro-fertilizer was sprayed on the leaf for 2-3 times.

Third, how to balance fertilization for cucumbers? How much fertilizer does one mu of land use?

Cucumber likes fertilizer, while applying sufficient organic fertilizer, combined with nitrogen, phosphorus and potassium fertilizer. The application of molybdenum fertilizer could increase the content of vitamins and decrease the contents of nitrate and nitrite in fruits. The production of 1000 kg cucumber requires 2.6kg of pure nitrogen, 1.4kg of phosphorus pentoxide and 3.5kg of potassium oxide, of which the fertilizer requirement in the fruiting period accounts for more than 80 per cent of the total fertilizer requirement.

1. Before planting, 5000 kg of organic fertilizer, 250kg of bio-organic compound fertilizer, 15kg of urea, 30kg of superphosphate and 50kg of potassium sulfate were applied per mu.

2. At the initial stage of melon fruit, the first topdressing was carried out, with 3 kg of pure nitrogen and 4 kg of potassium oxide per mu. The second topdressing was carried out at the beginning of Sheng melon, and pure nitrogen and potassium oxide were applied to 4 kg and 5-6 kg per mu respectively.

3. The third topdressing was carried out in the middle stage of Shenggua, with 3 kg of pure nitrogen and 5 kg of potassium oxide per mu. Spray 0.02% and 0.05% ammonium molybdate in full fruit.