chili
In the hot season, peppers should be combined with irrigation water for 1 to 2 times per mu, and 10 kg per mu. After the weather turns cold, the peppers will enter a vigorous fruiting period, and the plants will need to increase the amount of fertilizers. Before the end of October, fertilizers should be topdressed 2 or 3 times, applying 20 kg of high-potassium compound fertilizers per acre to promote vigorous plant growth and increase the yield and quality of peppers. . Because of the large amount of water evaporation in summer pepper plants, in addition to the normal fertilization of the roots, but also depending on the growth conditions, spraying foliar fertilizer occasionally. During the fruit period and after each harvest, 0.3% KH2PO4 solution or 1% superphosphate leachate or 1%-2% KNO3 solution is sprayed and sprayed once every 7-10 days. 2 or 3 times, it can increase the weight of the single fruit and make the fruit color bright.
In the event of high temperatures, drought should be diverted from time to time to keep the soil moist. When watering, it is necessary to grasp the principle of “a shallow, two urgent, and three coolâ€, that is, shallow irrigation is not diffuse; emergency irrigation is urgent, the field is not seen in clear water; soil is cold and water is cold when it is cold, usually at 0:00 to early morning Before the best irrigation. In addition, the use of rice straw, wheat straw and other crop stalks covering the sorghum surface, can not only reduce the temperature, but also reduce the evaporation of water, can play a role in moisturizing and prolonging the growth period. In case of high temperature and rainy weather, it is necessary to clear the ditch in time so that the rain will stop.
cucumber
The high temperature season is the result of cucumber, and the plants need more nitrogen and potassium fertilizers. After the first time the melons were topdressed once, and 20 kg of potassium sulfate compound fertilizer was applied per mu. After entering the harvest period, the ditch can be ditched in the middle of the hoe, and 15 kg of potassium sulfate compound fertilizer is applied per mu, and the soil is applied after the application. The later combined spraying can be used for extra-root dressing, such as spraying potassium dihydrogen phosphate, magnesium sulfate and other trace element fertilizers or 1% urea solution to promote the growth of cucumber. The amount of topdressing fertilizer that grows vigorously should be appropriately reduced, and the weaker plants should increase the amount of fertilizer and the frequency of topdressing.
In summer hot weather, cucumbers need a little seedlings to prevent them from growing. At this time, the water evaporates quickly and the seedling time is not too long. It is necessary to water according to the growing trend and the soil moisture. The second cultivator was taken before harvesting the root melon, 2 cm deep. Watering should be done after entering the melon period. It should be watered in the evening or in the morning. It should not be watered at noon. The water is poured in sunny days; even when it is cloudy and sunny, it must be watered in time; when it is rainy or heavy, it should be drained and flooded; after the hot rain, the well water should be drained in time.
Loofah
Luffa is a thermophilic and heat-tolerant vegetable that should be planted in loam or clay loam fields with high sunny content, high organic matter content, and strong water and fertilizer retention. During the high temperature season, loofahs are in the melon period. To prevent the high temperature from causing the melons, the vine should be supported in a timely manner to maintain the good permeability of the scaffold. At this point, loofah fertilization requirements are higher, generally combined with water chase to promote melon fertilizer, can open the ditch deep cooked peanut cake, bean cake and other organic fertilizer, coupled with application of urea, phosphate fertilizer and potassium sulfate and other ternary compound fertilizer. Fertilization should adhere to the principle of “eat less and more mealsâ€. The amount of application depends on the condition of the seedlings. If the growth is strong, it can be applied less. If the growth is weak, it can be applied 4 to 6 kg of compound fertilizer leachate every 15 days or so.
In high temperature season, loofahs should be irrigated, usually 3 to 4 days, watering once, watering well in the morning and evening to keep the soil moist. In hot weather, although the plants need water, they should also avoid accumulation of water. When irrigation, they should be filled with irrigation and flood irrigation, especially in the rainy days, drainage should be paid attention to in order to prevent the water in the area.
eggplant
The eggplant needs a large amount of nitrogen, but nitrogen fertilizer should not be applied excessively in high temperature season. The topdressing of ammonia fertilizer should not be combined with irrigation, because the high temperature will not only cause ammonia volatilization, but also may cause eggplant ammonia poisoning. It is advisable to apply ditching, to bury the soil after top dressing, and to have a thickness of not less than 5 cm.
In the hot season, eggplant fertilization should "eat less meals," and urea should be controlled within 30 kg per mu. Because the high temperature will accelerate the conversion of urea into the soil, the surplus will be lost after meeting the needs of the plant, especially for sandy soil, the loss rate will be even greater. Ammonium bicarbonate should not exceed 40 kg per acre. If the application amount is too large, besides causing loss of nutrients, it will also cause ammonia damage to leaves and fruits of eggplant. The high temperature season is also the fruitful period of eggplant. It is recommended to apply three compound fertilizers at a rate of not less than 40 kilograms per acre to meet the needs of eggplant growth and melon production.
When the soil moisture is insufficient, the plants will grow slowly and cause the flowers to fall. Therefore, in the high temperature season, when the roots are set, the root water should be poured to “root water†so that the roots can grow rapidly. In the early stage of harvest, the roots should be re-poured once to promote the rapid expansion of the fruit during the middle growth stage to keep the soil moist.
Canola
Small canola is a cool crop. In summer, the temperature is high. At this time, the seeded rapeseeds generally adopt the live broadcast method and increase the planting density. The amount per mu is about 250 grams. Before summer planting, sufficient basal fertilizer should be applied, and 1500 kg of farmyard manure per acre should be applied. The commonly used oysters should be changed to sorghum, that is, on the basis of the original rake, a width of 30 cm and a depth of 20 cm should be made between rake and rake. Drainage ditch, so that drought can be poured, rake can row. Live weather within 1 month is still high temperature weather. Normally, top dressing is started 15 days after seedling age. Top dressing is applied every 6 to 7 days, and top dressing is applied 3 to 4 times. The first and second can use thinner fertilizer and water. After that, apply 30 to 40 kilograms of compound fertilizer per acre or spread it. The last time it should be done before the plant is sealed.
Brassica napus has a shallow root distribution and high water consumption, so it is not tolerant to drought and requires sufficient moisture throughout the growing season. If the sun is strong, it must be kept 3 times a day, that is, morning and evening watering and showering at noon, in order to play a cooling role to ensure the normal growth of plants. In the rainy season, we must pay attention to drainage, and avoid flooding water to prevent the occurrence of diseases.
tomato
The high temperature season coincides with the fruit-filling period of tomatoes. At this time, the evapotranspiration of the plants is large. The number of times of watering and the amount of irrigation water should be increased. The water can be poured 4 to 5 days, and the water should be even, and do not suddenly dry to prevent cracking. . At this time, Mushi Sanyuan Compound Fertilizer should be 20 kilograms, and when the first ear fruit is fully developed, the Mushi Sanyuan Compound Fertilizer will be about 30 kilograms, and then fertilization will be applied according to the growing condition of eggplant seedlings. After harvesting the first taro fruit, 10-15 kg of potassium sulfate may be applied per acre after rain, or water may be applied after fertilization to ensure normal coloration and enlargement of fruits. At this time, it is also necessary to top-up such as potassium dihydrogen phosphate and other foliar fertilizers.
The high temperature can easily cause leaf burns, resulting in serious discoloration of chlorophyll. At this point can spray water cooling, especially when the temperature is higher than 35 °C for 4 hours in a row, it is necessary to take timely measures such as shading net cooling. If the high temperature encounters drought, it should be watered in time to maintain the field moisture content of 60% to 70%. If there is a heavy rain in high temperature, drainage shall be timely and the soil moisture content shall be controlled below 80%.
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