High efficiency matching production Technology of "Oil Melon and Rice" (part two)

4. matching watermelon interplanting techniques

1. Fertilization and transplanting. Before interplanting watermelon, organic fertilizer 1800~2400kg and special fertilizer 50kg were applied every 667m2, and holes were dug before planting. Interplanting was carried out in late April, and 0.3% urea solution was applied to root in time after transplanting, so as to improve the survival rate of melon seedlings. Special attention should be paid to the concentration of fixed root dung water should not be too high, in order to prevent injury to seedlings.

two。 Cut the vine and leave the melon. The cutting vine should be double-vine type or three-vine type, that is, 1 main vine with 1 or 2 lateral vines, and wipe off the axillary buds in time, and keep the female flowers in the 3rd node of the main vine or the 2nd node of the lateral vine to ensure 1 melon per plant, which is convenient for centralized supply of nutrients to achieve large and delicious fruit. After the expansion period, the watermelon color was turned over 2 times for 3 times to make the melon color beautiful and consistent.

3. Fertilizing and water management. Less irrigation at the seedling stage, topdressing the first fertilizer 7 days after interplanting, using 3~5kg urea to water every 667m2, dripping at the distance from the seedling 10~12cm; topdressing the vine fertilizer 20 days after planting, applying watermelon special fertilizer 15~20kg to the distance from the seedling 30cm every 667m2; topdressing the expanded melon fertilizer 5 days and 10 days after pollination, applying the same vine fertilizer; applying watermelon special fertilizer 15~20kg every 667m2 when the melon is in a bowl. Medium changed to spray 0.2% potassium dihydrogen phosphate on the leaves, and stop watering anti-rotten melons 10 days before ripening.

4. Harvest at the right time. Those prepared for long-term storage or remote storage can be harvested by medium well; those sold nearby can be harvested by well-done and slightly stored to make the peel thinner and improve the edible rate.

5. Supporting integrated pest control techniques

1. watermelon. The main control of Huangshou melon, melon aphid, red spider and Fusarium wilt, anthracnose, blight, disease and pest control requires early, uniform, ruthless. It is found that the wilted plants should be removed from the garden in time, and sprayed with 50% carbendazim and 70% methyl topiramate in the disease area, once every 7 days, 3 times in succession; 1 ∶ 1 ∶ 200 Bordeaux solution for the control of anthracnose and sheath blight can be sprayed 3 times in a row.

two。 Late rice. Late rice mainly controls pests such as rice stem borer, rice planthopper, sheath blight, rice blast and other diseases. The prevention and control of diseases and insect pests should be timely, accurate and scientific according to the disease and pest forecast of the local county plant protection station. Pesticides with high efficiency, low toxicity and no residue should be selected for prevention and control.

3. Rape. The key point is to control aphids and cabbage insects at seedling stage. After spring, pay attention to clear ditches and discharge stains, remove old, yellow and diseased leaves, ensure ventilation and light transmission, prevent lodging, spray borax fertilizer solution once in the early flowering stage and full flowering stage, prevent flowering and fruiting, and use corresponding pesticides to control Sclerotinia sclerotiorum at full flowering and final flowering stage, respectively.