Honeydew melon is suitable for planting in the soil with sufficient light, large temperature difference between night and day, good soil permeability and rich organic matter, so choose a good planting plot.

It is necessary to level the land, do a good job in clearing the garden, remove the big stones and weeds in the plot, level the land and open ditches.

Ditches with a depth of 16 to 19 cm and a width of 36 to 39 cm can raise the surface temperature, inhibit the growth of weeds in the field and reduce the occurrence of diseases.

Before bearing fruit, when the water supply is normal, when the nearby rhizomes are lush and the soil is dry, and when the main rhizomes are stationed in deep soil, the growth of rhizomes system is hindered.

The suitable temperature for the growth of Hami melon is 23℃, and the highest temperature is 42℃. When the temperature is below 1 1℃, the growth of rhizome system will slow down, and the rhizomes will be stationed in the soil with insufficient nutrients.

I. Planting work

1, land selection

When choosing land, we should choose fertile soil with an organic matter content of more than 2%, and level the land in February with a depth of more than 27 cm.

After spring, the distance between ditches is 4.3 meters, the length of ditches should not exceed 32 meters, and a ditch should be opened 65 centimeters away from the middle of ditches, and fertilizer should be applied.

The ditch is 30 cm deep, and 2,200 kg of rotten mature organic fertilizer, 22 kg of ammonium nitrate and 26 kg of calcium superphosphate are applied per mu. Plastic films are used to cover the two sides of the ditch, which is 12 cm away from the bottom of the ditch.

The ratio of rotten mature horse manure, cow manure, pig manure and plant ash is 3: 2:1.Before and after preparing the rotten organic soil, large clods should be screened out, and the soil should be watered after being mixed.

2. Seed selection and soaking

In terms of seed selection, we should choose seeds with relatively large seeds and similar sizes, which are not eaten by pests and diseases. In this way, the survival probability of cultivated seedlings in the later stage is high, and the defective and weak seeds are screened out and put in the soil to promote germination.

You can spray carbendazim solution to get rid of the seeds that are not good or sick. Dry the selected seeds in the sun for three days, pour them into a vessel, soak the seeds with germicide for two hours, and then wash them with clear water after taking them out.

Then put it in warm water with a temperature of 50 degrees and stir it. When the water temperature drops to 35 degrees, soak it for five hours. After taking it out, the seeds can be germinated and the seeds can be sown.

Soaked seeds are required to germinate, and the amount of seeds per mu is 55 grams. Pour the seeds into 600 times of boric acid water and stir evenly, and control the water temperature at 55 degrees, which can be very good for disinfection and sterilization.

Soak in boric acid aqueous solution for 6 hours, drain the water, wrap it with a wet rag and put it in a warm place to promote germination, and keep the temperature at 33 degrees.

When the fresh seeds grow 3 mm and the old seeds show 4 mm of white parts, open the wet rag every 5 hours and stir the seeds.

When more than 90% of the seeds appear white, then put them in a place with low temperature for 4 degrees, so that the planted seedlings can resist the cold well and advance the maturity by 3 days.

Second, field management

1, temperature control

After sowing, water properly, with the temperature at 25 degrees, and control the temperature in the greenhouse at 26 to 29 degrees during the day and above 12 degrees at night.

After transplanting, we should slow down the seedlings. When the seedlings grow three real leaves, we should turn the bags properly. Before the seedlings grow, the temperature should be kept at 3 1 degree, and the temperature at night should be 19 degree.

This can make the seedlings grow more orderly. When the leaves become larger, the temperature of the seedbed should be reduced appropriately, and the temperature should be kept at 26 degrees during the day and at 17 degrees at night.

When the fourth leaf appears, the temperature of the seedbed should be raised appropriately, with the temperature at 32 degrees during the day and 20 degrees at night.

Experiencing seedlings at low temperature in the first seven days of planting can help seedlings adapt to the surrounding natural environment.

2. Rational fertilization

When the seedlings grow to 90%, it is necessary to shorten the ventilation time, properly spray foliar fertilizer and nitrogen, phosphorus and potassium fertilizer, and add additional fertilizer to the rooting forest four days before the fixed value, which can stimulate the growth of rhizomes.

The application amount of nitrogen fertilizer and potassium fertilizer is from 16 to 19 kg, phosphorus fertilizer 16 kg and potassium fertilizer 32 kg per mu, and sufficient basic fertilizer can be applied before sowing.

Potassium sulfate compound fertilizer is 60-90kg per mu, and properly applied with rotten mature human and animal manure, and applied on both sides of honeydew melon, 28cm away from the plant, before sowing and in ditches.

In the middle growth stage, foliar fertilizer should be added and potassium dihydrogen phosphate solution should be sprayed. When the cantaloupe bears fruit, fertilizer should be added three or four times in time.

Nitrogen fertilizer is mainly applied in the early stage, and then phosphorus fertilizer and potassium fertilizer are applied in the later stage, which can promote the growth and development of honeydew melon seedlings. When the fruit is produced, the demand for fertilizer increases in the period of fruit expansion.

Increase the amount of potassium fertilizer, control the application of nitrogen fertilizer, apply potassium sulfate compound fertilizer 12 to 14 kg per mu, and apply 6 kg of potassium sulfate compound fertilizer per mu after one week.

Additional fertilizer should be applied before the female stamens grow. Dig a cave in the middle of two plant seedlings, 30 cm away from the lower position of the ditch, and add 22 kg of diamine phosphate, 6 kg of urea and 0/60 kg of bean dregs/kloc-per mu.

After the fruit is harvested, fertilizer is properly added outside the rhizome, and 2 10/0g of potassium dihydrogen phosphate and 330g of urea are sprayed to prepare a 2.5% aqueous solution.

40 grams of fulvic acid is mixed into 4/10000 aqueous solution, and 6 ml of water is sprayed with 5 1 kg, and sprayed on the surface of leaves in the morning and evening.