Watermelon seeds for seedless watermelon watermelon 
 Watermelon planting 
 First, teach you to identify watermelon seeds 
 Watermelon seed quality is good or bad, is to achieve high yield, high-quality, high efficiency basis. To ensure good quality buy Watermelon watermelon seeds, watermelon seeds to purchase, please note the following areas. 
 1, purity. Seed purity is consistent with the variety of subjects seed Characters percentage of the total seed subjects. In other words the higher the percentage, the better the seed quality. 
 2, the net degree. Clarity refers to the removal of inclusions, the total weight of pure seed percentage of seed weight subjects. 
 3, the grain weight. One thousand grain weight is the weight of watermelon seeds. Grain weight of different varieties, but basically the same variety of seed weight is for certain. Water content in the standard conditions, the seed weight reflects the full extent of the seed, grain weight like high quality seeds. 
 Moisture content on seed longevity and seed moisture content greater impact on saving lives. Seeds stored at room temperature should be maintained at 12% moisture content of -14% or less. The lower water content means that the higher seed quality. 
 4, the germination rate. Seed germination rate refers to the final germination test, all within the stipulated period in the normal germination of seeds accounted for the percentage of seeds tested. Germination rate (%) = all the specified date the number of germinated seeds / grains for seed testing × 100, the germination rate was determined based on the size of seeding rate. A germination rate of not less than 95%, secondary seed germination rate should be 80% of 
 Second, the watermelon field remediation attention Han 
 The first is to disinfect the soil. Watermelon plots planted 3-5 grams of 1 square meter can be used to benomyl applicator or the applicator mu of 100 kilograms of lime disinfection (the above two methods are in the spread after the plowing, so that soil mixing drugs, lime can not successive years of use). More plots of soil pests pesticides available on demand nest, or full-field pesticide applicator. 
 The second is re-applied base fertilizer. Optional base fertilizer formula is: 3000 kg manure, fertilizer 100 kg, 40 kg potassium sulfate; or poultry manure 3000 kg (fresh manure fermented with), P 50 kg, 30 kg of potassium sulfate. 
 The third is the field the whole car. The fertilizer evenly mixed with soil, press 2.5-3.5 meters, the open hand (including communication). If the system of intercropping, melon Road left 1.3 meters, 1.3 meters of other kinds of other vegetables, so that the basal watermelon melon road will halve the amount. Without potassium sulfate, potassium dihydrogen phosphate instead of 10 kg per mu is available, the better. Then a good fertilizer applied before planting melon Road turn Leveling in fine, good car, Goushen 20 cm or more, do a good job around ditch (ditch should be around 30 cm, to rain water off, dry ditch it). 
 The fourth is the use of chemical weed control. Watermelon as area, manual weeding is very troublesome. Experimental results show that the soil prior to spraying in the film closed better with the following herbicides: trifluralin, Toure on the grass and purslane, Butralin of Cyperus rotundus, the enemy on the grass and Sara alachlor grass control efficacy are quite good. 
 Third, watermelon Zage pest control 
 Watermelon diseases are damping-off, blight, fusarium wilt, powdery mildew, anthracnose and so on. If you suffer from damping-off disease and blight, can be used for carbendazim and Green Hang One seedbed disinfection; if the risk of Fusarium wilt of watermelon cropping 15% of available agent 300-350 times IRRIGATING One. 0.5 kg each, in the 3-4 true leaf after planting when the treatment, prevention is better; if it is powdery mildew and anthracnose, can be used chlorothalonil, Tuobu Jin, flour and other drug prevention rust better spirits, alternate . 
 Watermelon bug as the main pest, aphids, ladybugs, root maggots, mites and so on. Fungicides can be used avermectin, dichlorvos, Decis and other alternative prevention and control, root maggot trichlorfon IRRIGATING available. Promote installation of insecticidal lamps and yellow board trap and kill, the physical control. It is worth mentioning that the root-knot nematode is now very serious outbreaks in many regions. Root-knot nematodes were mainly in the seedling stage of plant infection, caused greater harm. So be sure to select the seedbed to root-knot nematode-free plots. If it is found in C. elegans after planting seedlings, available avermectin insecticides such as 1% of the mites cleared 2000 times, 3000 times IRRIGATING 1.8% A Bading. Field can be used in land preparation time phoxim, Miller Seoul, carbosulfan, diazinon, chlorpyrifos and other pharmaceutical applicator. 
 Watermelon likes the hot, extremely cold, melon body large, thick-skinned, but intolerance storage. Watermelon on the low temperature sensitive, the following storage at 9.5 ℃, there are cold symptoms; and in high temperature storage, the sugar content decreased, and then decay. A large number of watermelon seeds for seedless watermelon watermelon. Tel: