What are the seed varieties? What are the main points of fertilizer instruction when planting?

Seed melon is a variety of watermelon, mainly in order to obtain a kind of melon seeds, that is, the watermelon seeds we eat, which has high economic value. Seed melon like to grow in sandy loam, barren-resistant, not suitable for continuous cropping, drought and waterlogging tolerance, is a temperature-loving and heat-resistant crop, the root system is developed, the root system can reach about 2 meters. Let's take a look at the seed melon varieties. What are the key points of using fertilizer when planting?

What are the varieties of seed melon?

1. Lanzhou seed melon

Lanzhou seed melon is a melon species with local characteristics, and it is a major specialty of Lanzhou. The shape of the melon is similar to that of the watermelon, but smaller than the watermelon. The average weight of the single melon is 2-3 kilograms. The surface is smooth, the color is light green, and the set has dark green stripes. Melon flesh color is yellow and white, sweet, contains more seeds, large seeds.

2. Jingyuan black melon seeds

The famous specialty of Gansu is famous for its large piece, thin skin, flat plate, thick meat, black shining, fragrant taste, excellent quality and so on. The shape of melon is similar to that of watermelon, slightly round, but smaller than watermelon, with an average weight of 2 to 3 kilograms, smooth surface, light green color and dark green stripes.

3. Daozhou seed melon

Mainly planted in the south of Yongzhou City, Hunan Province, specific planting areas are Daozhou, Jiangyong, Jianghua, Ningyuan and other counties, of which Daozhou is the most widely planted, melon seeds are slightly smaller than Lanzhou seed melon. Daozhou red melon seeds are affected by geography and climate, especially the quality of melon seeds in Qingtang town is the best, its color is ruddy and smooth, the particles are full, the flesh is fragrant and tender, and it is durable, and the shelf life can reach more than 1 year.

Second, what are the main points of using fertilizer when planting seed melon?

1. Apply basic fertilizer for land preparation

After giving way to the previous crop, it is necessary to apply sufficient basic fertilizer in the process of timely ploughing and careful cultivation, and use the seed melon colonization behavior center before planting to widen the ditch of 40cm and deep 20cm. Per mu, 1500-2000 kg of rotten farm manure, 50-60 kg of compound fertilizer in sunny days, and 1 kg of zinc sulfate were applied evenly into the planting ditch, and then soil moisture was adjusted to make ridges.

2. Topdressing

Seed melon is a crop that needs a large amount of fertilizer. if the base fertilizer is insufficient, the phenomenon of losing fertilizer will appear in the fruit setting period, showing that the vines are thin and the leaf color becomes lighter. Therefore, fertilizer should be applied in time. For the second time, 10 kg of urea was applied to the irrigation head water per mu, and 20-30 kg of compound fertilizer was applied in sunny days in the second time. In order to improve the fruit setting rate, enhance disease resistance and promote grain fullness, foliar fertilizer should be sprayed once before the fruit setting period, and 0.5% potassium dihydrogen phosphate should be sprayed on the foliar surface during the fruit expansion period.

3. Spraying foliar fertilizer

In the 3-5 leaf stage, 70-80g of potassium dihydrogen phosphate or 100g of phosphorus was sprayed on the leaves at the stage of 3-5 leaves, 50g of potassium sulfate was added per 666.7 tons, 30-40kg was mixed with water, the interval was 7-8 days, and the spray was 1-2 times. Foliar fertilizer containing trace elements can be added to the land deficient in trace elements according to the growth symptoms.