Identification and control of rape white rust

Sowing or raising seedlings double-film watermelon can be direct seeded or raised seedlings. Sow seeds 35-40 days before frost break during live broadcast. Early-maturing watermelons were used in the shed, and the watermelon ditches of wide 50cm and deep 25~35cm were made according to the row spacing of 1.4m to 1.8m. The ditches were layered with high-quality fine fertilizer, mixed with fertilizer and soil, filled the ditch and pat fruit.

Planting and managing the application of high-quality agricultural fertilizer 5000~6000kg, Huntian calcium phosphate or compound fertilizer 40~50kg, at least 10kg in urine, special fertilizer for watermelon or cake fertilizer 60~100kg. For organic fertilizer and phosphate fertilizer, the other fertilizers and nitrogen fertilizers were applied in furrow, and the other fertilizers and nitrogen fertilizers could be used as topdressing.

Branch pressure vine and Baogui precocious watermelon mostly use single vine pruning, leaving only the main vine; there are also a side branch at the base of the main vine 30cm to increase the leaf area. Choose the second or third female flower on the main vine to bear melon. The second watermelon and double film watermelon matured early, and the first watermelon was harvested around the middle of July. after harvest, it was suitable for watermelon growth more than 60 days before the local frost, and there were no watermelon plants.