After the autumn, the production of vegetables is delayed. The nursery period is in the high temperature season at the end of the autumn and the beginning of the autumn. The light is strong, the temperature is high, the heavy rain frequently occurs, and the pests and diseases are jeopardized quickly. It is extremely difficult to cultivate strong seedlings. Based on the production practices in recent years, I have explored the key technologies for the cultivation of autumn green peppers, autumn tomatoes, autumn broccoli, autumn purple eggplant, autumn cucumber, autumn watermelon, and other strong seedlings using a film (shade net or insect net) over a high temperature season. Solve this problem, and now make the following introduction to the farmers' friends.
One, Xia Yanqiu a net of a film seedlings specific practices
1. Use a suitable mesh and membrane. Insect nets, suburban areas used for fast-growing summer and autumn leafy vegetables, should use 22-mesh silver-gray insect nets; raining agricultural film, because it is in the hot season, plastic plastic film can easily aging, generally not broken old agricultural film as well.
2. Shelving establishment. Seedlings can be covered with a small shed to protect the seedlings. When the rain is raining, it is covered with agricultural film. In the sunny days, insect nets or shade nets are used to moisturize, prevent insects, and cover the light; it can also be concentrated on the nursery at one end of the colonization shed. A network of a film, the best shed door is also covered with insect nets.
3. Seedlings. 1 General use plastic tray light matrix nursery, use 56 to 72 holes PVC plastic tray, nursery site first flat mat mulch, and then flat plastic plug tray, plastic plug filled "Tianliang" brand organic and inorganic composite matrix, plus 50% carbendazim powder 50g/16.5kg, can be loaded with 10 to 12 plates per 16.5kg, soaked in the bottom water and then sowed, after the description with the same substrate cover seeds to not see the seed as degree, then cover the small arch; after the seedlings Timely set seedlings, leave 1 plant per hole and plant 2 to 3 days before planting. 2 common nutrition seedlings. Fertilizer boring machine is used for 5~7 days before the planting process. For each 10 square meters, special fertilizer for organic grain seedlings of “Tian Liang†brand is 2~2.5kg, or 150~2500kg for high-quality manure excrement, plus special fertilizer for rice boring machine. 5 ~ 2kg, borax 0.25kg, zinc sulfate 0.25kg, mix and mix wolfberry, sow before sowing bottom water, after sowing with dry fine cover seeds to not see the seed for the degree. Then use 48% trifluralin 0.15-0.2mL / square meters of water 0.5kg spray, seedlings in time after the Dingmiao, leaving 1 per hole, 2 to 3 days before planting hardening seedlings.
Second, the matters needing attention
1. Mesh disinfection should be carried out before the net yarn is covered to reduce the insect source in the net. Can be used 50% dichlorvos 800 times or 48% of Lospeng 1000 times spray insecticide, and manual eradication of weeds.
2. According to the climate. Crop conditions timely net coverage, shade net coverage needs to be mastered; sunny before and after noon strong light, high temperature, timely cover in case of heavy rain; early morning, evening, even cloudy, low temperature, light is not strong, it is timely to expose the net. 5-7 days before harvest, the shade net will be removed to avoid light color and poor quality. However, because of the low light resistance, summer wax and lettuce can be covered in the whole growing period.
3. After using shade nets, corresponding cultivation measures must be taken. After the coverage, the growth of crops has been accelerated and the demand for fertilizer and water has increased. It is necessary to supplement fertilizer and water in a timely manner. After using shade nets in summer, it is still necessary to spray water depending on weather conditions and soil moisture during the emergence period.
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