Greenhouse watermelon 8424 planting technology, what is the general yield of watermelon per mu?

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Watermelon 8424 refers to Zaojia 8424, which is a variety of watermelon. It is necessary to choose fertile sandy soil with high and dry terrain, deep soil, good permeability, and convenient drainage and irrigation for planting watermelons, and then prepare the land to build a greenhouse. It is best to keep the temperature of the greenhouse between 25-30°C during sowing. Before planting, It is necessary to ventilate the seedlings and adjust the temperature and humidity of the greenhouse in time. Under normal circumstances, under normal management conditions, the yield of watermelon per mu is between 4,000 and 10,000 kilograms.

1. Watermelon 8424

Watermelon 8424 refers to Zaojia 8424, which is a variety of watermelon. It is the 24th group of improved varieties successfully bred by agricultural experts from the former Nanhui District of Shanghai on February 4, 1984, hence its name. Because of its thin and juicy skin, sweet and refreshing taste, and medium size, it is deeply loved by people. The development of pure 8424 fruits takes about 30 days. A single melon generally weighs 8-14 pounds and has a central sugar content between 12-14 degrees.

2. Greenhouse watermelon 8424 planting technology

< p>1. Planting site selection: It is best to choose fertile, sandy soil with high and dry terrain, deep soil, good permeability, and convenient drainage and irrigation. In addition, it is also necessary to note that the planting site should not be selected as a place where melon and eggplant crops have been planted within 3 years. Try to choose corn, rice, rape, cotton and other crops as the planting site.

2. Preparing the land to build a shed: First, in the late autumn and early winter of the year before sowing, clear the field of weeds, dead leaves, etc. and plow it 25-30cm deep. Secondly, wait until the soil is dry and wet enough to break easily, then level and finely till the soil and dig a ditch. According to the size of the greenhouse, make a border and dig ditches for drainage. It is best to use staggered arrangement and symmetrical construction when building a greenhouse. Finally, after the greenhouse is built, fertilize and prepare the land for border preparation. When the soil is dry and wet, cover it with mulch and wait for holes to be dug to plant melons. Then lay a dropper tape along each border along the holes to plant melons.

3. Sowing and raising seedlings: In order to cultivate high-quality seedlings, electric heating can be used to raise seedlings. The germination temperature of watermelon is 28-30 degrees. The soil temperature needs to be kept at 25-30 degrees 3-4 days after sowing. The heating should be stopped after the seeds break through the soil. Wait until the seeds are broken before releasing the seedlings. After most of the melon seedlings are unearthed, gap heating can be used to control the daytime temperature at 20-25°C and the night temperature between 15-20°C.

4. Colonization: The first is to harden the seedlings. At this time, the heating should be stopped, the greenhouse opening should be gradually opened, the ventilation range should be expanded and the ventilation time should be extended. It should be noted that ventilation should not be excessive. Plant the melon seedlings that are about 30 days old and have 3-4 true leaves after hardening on a sunny day from 9 to 16 o'clock or when the temperature is about 10 degrees. Do not water after planting.

5. Water and fertilizer management: Carry out different water and fertilizer management according to watermelons at different growth stages. The fertilization principle is mainly adjusted based on soil fertility, target yield and plant growth, but do not apply nitrate nitrogen fertilizer, hospital fecal waste and municipal waste. Water management should be adjusted accordingly according to the growth stage of watermelon.

6. Temperature and humidity management: According to the humidity and weather conditions inside and outside the greenhouse, corresponding adjustments must be made in a timely manner. For example, in the initial stage of planting, the temperature in the shed needs to reach 30-35 degrees. When the plants are alive, the daytime temperature is 30 degrees and the night temperature is 15 degrees for management.

3. What is the general yield of watermelon per mu

The yield per mu of watermelon will vary depending on the variety, method, and season of cultivation. Under normal circumstances, under normal management conditions, the yield of watermelon per mu is between 4,000 and 10,000 kilograms.

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