High yield cultivation technique of drip irrigation under film for melon seeds

1. It is advisable to choose loam plots with flat terrain, deep soil layers, and excellent ventilation. It is advisable to use cereal crops for the previous crop, and crop rotation or alternate year rotation is prohibited. It is also not advisable to crop with other melon crops.

Before autumn plowing, apply 2000 kilograms of decomposed farmyard manure, 40-50 kilograms of superphosphate, or 8-10 kilograms of potassium sulfate compound fertilizer with a total content of 40-45% to 667 square meters. In early spring, timely prepare the land, use a rake or blade to break the soil blocks, level the land, and loosen the soil. The quality of land preparation meets the five character standards of "neat, flat, loose, broken, and clean".

3. Seed disposal

① Choose high-yield melon varieties for variety selection. The types currently being promoted in Datian include Xinzigua , No.2, and Xinnong Heixiaozi 

② Seed quality requirements include seeds with a color and regularity that are consistent, without warping, plump, mature, have a germination rate of over 90%, a purity of over 98%, and a purity of over 95%.

③ Sun the seeds 2-3 days before sowing.

4. Soil closure and disposal contact land preparation. For 667 square meters, 200 milliliters of 48% Zhongding Ling or 80 milliliters of 96% Jindu Er can be used for soil closure and disposal, achieving uniform spraying without heavy or leaking.

2、 Cultivation methods

Farming can be carried out when the daily average temperature reaches 10 ℃ or above for 5 days with a ground temperature of 10 centimeters. Local live streaming usually starts from late April to mid May with film covering. Use 70cm plastic film for cultivation, with one film, one pipe, and two rows. The film should be spread, seeded, and drip irrigation tape should be laid in one go. Wide and narrow lane planning. Large variety, with a row spacing of 40 centimeters above the membrane, a row spacing of 90-100 centimeters between the membranes, and a plant spacing of 20-25 centimeters. Types of small pieces, with a row spacing of 40 centimeters above the membrane, a row spacing of 70-80 centimeters between the membranes, and a plant spacing of 20 centimeters. 2-3 seeds per hole, sowing at a depth of 2-3 centimeters.

3、 Field management

1. Drip the seedling water using dry and wet methods. After sowing, drip the seedling water according to the soil moisture content, with a depth of 667 meters and a depth of 25 meters.

2. Planting usually starts with 2 true leaves and ends with 4 true leaves. If encountering a year with severe insect infestation, the seedling setting time can be appropriately postponed. In principle, 1-2 plants should be planted in each hole, and two plants should be left near the hole where there is a shortage of seedlings. Weak seedlings, diseased seedlings, and insect infested seedlings should be removed intermittently.

3. After planting and weeding the seedlings, intercrop the film 2-3 times to improve soil temperature and permeability. Contact mechanical intercropping for manual weeding once.

4. When the vines of the melon seedlings are 30-40 centimeters long, they should be manually pruned and pressed in a timely manner to straighten the seedlings and avoid being surrounded by the vines, which may affect the fruit setting rate.

5. Drip water and fertilize the seedlings for about 20-30 days after emergence. From now on, drip water every 7-10 days with a drip of 20-25 cubic meters. Drip water 9-10 times throughout the entire growth period, using 220-260 cubic meters of water every 667 cubic meters. For top dressing, urea should be dropped with water. For 667 meters, 3-4 kilograms of fertilizer should be dropped each time. The amount of fertilizer needed is relatively large from before the vine is swung to the fruit enlargement period. Contact irrigation and drip 5 kilograms of fertilizer each time. For the entire growth period, drip fertilizer with water 3-4 times. For 667 meters