dapt to the environment

1. Climate: the frost free period is more than 110 days, and the temperature is above 2300 ℃. He likes hot and dry weather. It is rainy and foggy in summer, rainy and even foggy, thus affecting the fruit setting rate and the later growth.

2. Soil conditions: sandy loam, loam and acid loess can be cultivated. The snow-white pumpkin seeds have strong drought resistance and are not afraid of floods. The soil with good terrain, good drainage, good permeability and easy waterlogging should be selected.

Select

Snow white pumpkin seeds are a high-efficiency economic crop. The key to selecting a reasonable crop rotation is that Gramineae is good, such as wheat, corn and soybean residues. The rotation cycle of 3 to 5 years is not related to the rotation of Solanaceae.

Note: PS, when to choose the equidistance of the residual pesticide blocks that were not administered last year. Spray chlorphene blocks, not more than two kilograms per hectare.

Attachment: white melon seeds shall be planted after sowing for a long time.

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2,4-D drug damage: the petiole is curly, the stem is thick and curved, the new leaf turns yellow, and the old leaf is early blight.

Residual damage of Chlorsulfuron methyl: thicker roots, cotyledons and true leaves are wrinkled and small in volume, plant atrophy, yellow leaves are damaged and dead, and plant growth is stagnant or dead

Preparation requirements

White melon seeds have strict requirements for soil preparation, and the requirements for planting are higher than those of our soybeans, corn and wheat. Therefore, the preparation work carried out last autumn should be more than 30cm in deep scarfing rake and deep scarfing, so as to increase the permeability and enhance the resistance. Painful requirements: 17 to 19 cm. The fine soil is loose, smooth and flat. Xuan, broken, good. The best is Qiuling, or the sweat gland ridge can be 65 cm away. The ridge is flat and straight, and the ridge distance is uniform.

Selection of seeds

Snow white pumpkin seeds are a kind of high-efficiency economic crops. The selection of seeds should be strict. Once a problem seed is found, we will determine the most important economic benefit of this year based on its factors. The first way to select seeds with high yield, good harvest and good yield and benefit is to select varieties with high yield, good quality, disease resistance, more women, high fruit setting rate, number of seeds per fruit, white grain color, thick and thin plate, and excellent varieties.

It is the first choice. It should be cleaned before sowing to remove the shriveled and deformed seeds. The seed quality standard is: the purity is more than 99%, the water content is less than 9%, the diameter of white melon seeds is 12-12.5 mm, the germination rate is more than 85%, and the seed is 2 kilograms per mu. The seeds must be exposed for 2-3 days in sunny days to improve the vitality and life of the seeds, wake up the dormancy, the seeds germinate quickly, and sow the seed powder, The water content of seeds sown at low temperature in spring, and the seeds of grounding lead powder are dormant for a long time. Under the best condition, if seeds are mixed, the seed coating can prevent diseases, insects and rodents. However, a special person often knocks the seed tube when sowing, and the seeds enter the ground according to the requirements of sowing.

About selection

If the suction or blow type precision seeder can be used conditionally, the precision hole seeder of soybean in China can be used, but the planting body must be changed into a special broadcast white seed plate, with a uniform seed spacing of 65 cm, about 75 cm, and 20000 hectares of plant seedlings.

Preparation of fertilizer

Apply less nitrogen and more phosphorus and potassium. Because potassium and phosphorus are fond of pumpkin planting, 20 kg of phosphorus fertilizer per mu, 10 kg per mu, 6 kg of potassium fertilizer per mu, and 14 kg of nitrogen fertilizer are applied late.

Sowing date

It can be sown late on May 10 every year and no later than May 20. It can be sown early according to the climate. The sowing depth is 3 to 5 cm, and there is no sowing depth. Because Snow White's pumpkin seeds are rooted, sown, suppressed, and double fertilized. After the debugging, they are evenly sown according to the plant spacing, or even 75 cm. It is not fast and easy.

Field management

1. Soil treatment, thiophensulfuron plus metolachlor, can be used.

2. Jianmiao, Dingmiao, the first piece after germination can be opened. Dingmiao, Dingmiao, should be early rather than late. When guamiao Dingmiao maintains strong growth. Eliminate seedling disease, weak growth, poor cotyledon development or yellowing seedling. Do not use the Dingmiao, hoe and shovel it. From the root, through the ventilation effect, the damage to the root system of the seedling that causes the growth of the seedling is retained. Meixue retains the thick seedling, weeding and thinning