The nutrients needed for the entire growth period of cucumber
1. The roots of cucumber seedlings are distributed in the shallow soil layer, with high oxygen demand and short seedling age. The soil porosity and available nutrient requirements for the bed soil are relatively high. The ratio of the seedbed soil preparation is 30% of decomposed horse manure. 20% of the ash, 10% of the garden soil that has been cooked, and 40% of the vegetable garden soil that has not been grown. You can also use 40% of vegetable field soil, 20% of river mud, 30% of cooked circle fertilizer, 10% of plant ash, add 2% - 3% of superphosphate, fully mix and match. If it is found that there is a lack of fertilizer, nutrition solution can be added. The formula is 0.04% ammonium sulfate, 0.03% calcium superphosphate, 0.05% magnesium sulfate, and 0.04% potassium chloride. Alternatively, 0.81 kg of ammonium nitrate, 0.95 kg of calcium nitrate, 0.50 kg of ammonium sulfate, 0.35 kg of potassium dihydrogen phosphate and 0.02 kg of iron oxide may be added to 1000 kg of water. Such a nutrient solution may be directly sprayed on the leaves.
2. The basal cucumber is suitable for growing on well-ventilated loose soil and has a good response to organic fertilizers. Especially when planting in the spring, the application of adequately decomposed organic fertilizer is beneficial to easing seedlings and hair growth. Therefore, cucumber cultivation must pay attention to increase the organic fertilizer, especially base fertilizer application, the amount of basal fertilizer according to the soil fertility may be, generally per acre paved and cooked round fertilizer 4100--5000 kg, superphosphate 20--30 kg. The base fertilizer After cultivating evenly, open the ditch according to the line, apply 1000 to 1500 kilograms of high-quality rot compost fertilizer per acre, and mix and level it with the soil at the bottom of the ditch to prepare for cucumber colonization.
3, top-dressing cucumber is a continuous result of continuous harvest of vegetables, the need for large amounts of fertilizer, coupled with shallow cucumber roots, sucking weak fertility, so need to continue to chase fertilizer, in order to ensure the normal development of the fruit and plant robust growth. According to the characteristics of cucumber root distribution and fertilizer requirements, the amount of topdressing should not be too large, and the number of topdressing should be more. Generally, it must be applied 4-5 times to master the principle of “diet small mealsâ€. Topdressing is based on quick-acting fertilizers, and chemical fertilizers are interspersed with human fecal urine. In the early stage of fruiting, the first top dressing was applied. Mushi pure nitrogen was 3--4 kg and potassium oxide 4--6 kg. In the early stage of the harvest, the first time, the interval between the topdressing of the melon period was shortened and irrigation was performed. The amount of top-dressing before the third time is the same, and it is halved after each time. The last time you can skip the potash fertilizer. In the melon stage, 0.5% urea and 0.3%-0.5% potassium dihydrogen phosphate aqueous solution can be sprayed 2-3 times. To increase the number of topdressing, shorten the interval. Top dressing should generally be done on a sunny day. In the case that soil nutrients are easily lost in the rainy season, the method of covering the soil with chemical fertilizer after applying a hole is better than applying manure water, and ammonium sulfate is 9--12 kg per acre. Http://
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