Because of its small size, thin skin, delicate meat, and flavor characteristics, the small watermelon is suitable for modern small family consumption and is popular with the public. Due to the higher economic benefits of the small watermelon, it is also welcomed by the majority of melon farmers, and the cultivation area has been expanding year by year. However, the small watermelon is a new type of watermelon. Its fertility characteristics are more special than that of ordinary watermelon. Its performance in cultivation also has its characteristics. For this reason, the newspaper interviewed the vice chairman of the Provincial Horticultural Society and the West Melon expert Wang Shekuan. Sir, he asked him to give an introduction to the small watermelon cultivation technique for reference by the farmers. 1. The selection of fine varieties Currently, there are not many varieties of small watermelons on the market. The main ones are the Huami elf (Hua Pei Huang Qi) and Hua Mi Zhang Zhong Bao (Red Peony), produced by Anhui Tianmu West Melon Seed Co., Ltd. There are Japanese-made early spring ruby, Taiwan's special Xiaofeng, etc. From the economic characteristics of the varieties, domestic varieties are not worse than imports, but the price of imported seeds is several times higher than that of domestic seeds. 2, determine the cultivation time of small watermelon due to a short growing period, more than one year can be cultivated. In view of the low yield of small watermelons, generally early protection cultivation in protected areas and late autumn cultivation are used to obtain higher economic benefits. The specific cultivation season can be determined according to the local warm and heat resources and the protection facilities. For example, solar greenhouse multi-layer covering cultivation methods in Huaibei and Shandong can be planted in late December, planted in early February, and harvested in mid-to-late April; plastic greenhouses should be planted from late January to early February, and planted from late February to early March. , listed in mid-May. The cultivation of greenhouses in the area south of the Huaihe River can be planted in mid-February, set in mid-March, and harvested in mid-May. Late autumn cultivation can be planted in late July, planted in early August, and listed on the National Day and Mid-Autumn Festival. 3, sowing seedlings using nutritional seedlings nursery, the diameter of the nutrient clams should not be less than 8 cm. The nutrient soil can only be used after being composted and matured, and it can meet the criteria of being rich in organic matter and maintaining water and fertilizer. Seeds soaked in a sun before sowing. Small watermelon seed is small, 1000-grain weight is generally 30 to 40 grams, seed coat thin soaking time should not be too long, usually 2 hours. Before planting, put the nutritious soil that is filled with water into the bottom water and select sunny day sowing. Premature cultivation should immediately cover the membrane to warm up. When most of the seeds are unearthed, they should be removed from the membrane, kept at 25°C during the day and 18°C ​​at night to prevent emergence of tall seedlings. After the first true leaf is unfolded, the temperature should be appropriately increased to promote growth. Before 5 to 7 days before transplanting, the plants are released and cultivated for transplanting. The general seedling age is 30 to 35 days. Late autumn cultivation, seedling period is the high temperature period, to cool the sun insulation. In this period, seed germination is fast, seedling growth is fast, and the seedling age is not appropriate, generally about 10 days is appropriate. 4. The land to be planted and planted should be a field with low groundwater level, convenient irrigation and drainage, and soft soil, and no more than 3 years of melon crops. The base fertilizer should be applied before setting, but the amount of fertilizer is only 70% of that of ordinary watermelon, and it is generally used to deep-freeze frozen pods before winter. About 2000 kg of organic fertilizer is spread per acre before planting, and 25 kg of superphosphate is poured over the ground. After the hoeing, there will be no compound fertilizer 30-40 kg per mu. When planting in early spring, the soil temperature should be stable above 15°C and the temperature should be above 12°C. Colonization should be carried out in the evening in the summer, and the roots should be avoided as much as possible. The stand-type cultivation center is 80 centimeters wide and is planted in two rows, with 120 to 150 centimeters wide on both sides, standing or climbing one row, 35 to 40 centimeters of plant spacing, three vines, and 1,500 to 1,800 plants per acre. Climbing ground cultivation hoe width 200 ~ 220 cm, spacing 35 to 40 cm, three vine pruning, planting 700 ~ 750 per acre; if the spacing of 60 cm, using four vine pruning, per acre can be planted 500 ~ 550 strains.
Shmp Sodium Hexametaphosphate,Msp Monosodium Phosphate
Co., Ltd. , http://www.chfoodadditives.com