Watermelon fertilizing method

Abstract

The invention discloses a watermelon fertilizing method, and belongs to the technical field of fruit fertilizing. The method comprises the following steps: 1, base fertilizer application: applying farmyard manure to soil, adding plant ash and calcium superphosphate, uniformly mixing with soil, covering soil, and planting or directly sowing ; and 2, additional fertilization: carrying out first time fertilizer application after directly sowed sprouts of watermelon seedlings have two true leaves or transplanted sprouts recover, applying urea to the sprouts as a seedling assisting fertilizer when the watermelon sprouts vine, applying a ternary composite fertilizer between the sprouts after the sprouts vine, carrying out trenching urea and potassium sulfate fertilizer application during the appearance of young fruits of the watermelons, and respectively spraying 0.5% potassium dihydrogen phosphate and 0.5% calcium nitrate two times before maturation. Fertilization is carried out according to the difference of nutrients required by the watermelons in different stages, and sufficient nutrients are provided for the watermelon sprouts in each stage in order to make the watermelon sprouts rapidly grow, so high yield and economic benefit improvement are realized.

Description

technical field [0001] The invention relates to the technical field of fruit fertilization, in particular to a watermelon fertilization method. Background technique [0002] Watermelon is called "the king of midsummer". It is refreshing and thirst-quenching, sweet and juicy. It is the best fruit in midsummer. Apart from fat and cholesterol, watermelon contains a lot of glucose, malic acid, fructose, protein amino acid, tomato element and rich vitamin C, etc. Substance is a kind of food rich in high nutrition, pure and safe to eat. The sugar content of meat is generally 5-12%, including glucose, fructose and sucrose. [0003] Watermelon is suitable for growing on fertile sandy loam or clay loam, and likes well-rotted farmyard manure. According to data, the production of 1000kg watermelon fruit requires 2.5-3.3kg of nitrogen (N), 0.8-1.3kg of phosphorus (P2O5), and 2.9-3.7kg of potassium (K2O). However, there are obvious differences in the amount of nutrients absorbed by dif...

AI Technical Summary

Problems solved by technology

However, there are obvious differences in the amount of nutrients absorbed by different growth stages. It accounts for 0.01% in the germination stage, 0.54% in the seedling stage, and 14.6% in the vine stage. 84.88%, watermelon is a plant that needs a lot of fertilizer, but if there is too much fertilizer, especially nitrogen fertilizer, coupled with rainfall or sufficient irrigation, thick vines will appear, which are not easy to bear fruit and affect the yield of watermelon

The way to prevent thick vines is not to apply too much nitrogen fertilizer, and to enhance ventilation and light transmission. If thick vines appear before flowering, the vine heart can be removed to destroy its growth potential, and growth inhibitors can also be used to inhibit its growth. It can be seen that watermelon in the late stage The importance of nutrition, the common fertilization method ignores the demand for different nutrients in different stages of watermelon during the fertilization process, reducing the yield of watermelon