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How to correctly choose and use insecticides in hot and rainy weather?
Insecticides refer to chemical preparations used to control pests, mainly drugs for controlling agricultural pests and urban sanitary pests, with a long history of use, large dosage, and many varieties. So how to correctly use insecticides? What agents can be chosen in hot and rainy weather? 1.
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What precautions should be taken when spraying pesticides in hot weather?
Summer is a period of vigorous growth for many plants, and it is also the peak period of damage from various pests and diseases. Rising temperatures also make it inconvenient to spray crops and can easily cause pesticide damage. So what precautions should be taken when spraying pesticides in hot weather? 1. Avoid high temperatures and strong light
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How to Plant Pomegranate Seeds in Autumn? A Detailed Guide to Autumn Sowing Methods
It is now autumn, the temperature has dropped somewhat, and pomegranates have come into season. So do you know how to plant pomegranate seeds in autumn? 1. How to plant pomegranate seeds in autumn. To plant pomegranate seeds in autumn, you need to prepare clean arils. Then soak them in clean water for 6-10 days, spread the seeds on the soil and cover them with small stones. Water them thoroughly, and they will sprout in about 1 week. Note that a pomegranate tree grown from seeds will take 6 to 8 years to bloom and bear fruit.
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How Do Cacti Survive Winter? A Detailed Guide to Winter Care Methods
After the beginning of winter, indoor temperatures drop sharply. Potted cacti grown at home should be placed near a south-facing window with ample light, long sunshine hours and higher temperatures. Generally, ground-dwelling cacti do not require very high temperatures during their winter dormancy. While keeping the potting soil relatively dry
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When is the best sowing time for wheat? A detailed explanation of temperature and seeding rate
Summary The suitable sowing temperature for winter-type wheat varieties is 16-18°C, around September 27-October 5; the suitable temperature for semi-winter varieties is 16-17°C. From September 27-October 12; the suitable temperature for spring-leaning varieties is 16-15°C, around October 10-15, the suitable sowing rate for dry-stubble wheat fields is
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When to Apply Foliar Fertilizer to Rice, and at What Temperature Should It Be Used?
Summary Foliar fertilizer can be sprayed on rice at the late booting, initial heading, grain-filling and full heading stages. During the heading and flowering stage, it should be sprayed in the morning before flowering and after 4 p.m., while at the late booting and grain-filling stages, it should be sprayed on sunny days before 11 a.m. and after 4 p.m. Generally, the suitable temperature for spraying foliar fertilizer is 8-25°C.
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When Is the Best Time to Spray Herbicide on Wheat? Master the Timing and Temperature
Abstract: You can choose to weed during the wheat seedling stage, in mid-to-late November, or during the wheat greening stage, from late February to early March. Generally, spray when the average temperature is above 6°C, and select the corresponding herbicide for control according to the weed species.
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Growing Requirements for Dendrobium officinale: Soil and Ambient Temperature Are Key
Summary Soil requirements: choose peat, fern root, tree bark, etc. as the transplanting substrate. Temperature requirements: the suitable temperature for growth is 12-35°C. Light requirements: it is suitable for growing in a shady, damp, ventilated, semi-shaded and semi-sunny environment, and direct sunlight must be avoided in summer. Humidity requirements ⟦4 <p class="cintro"><span>Summary</span>Soil requirements: choose peat, fern root, tree bark, etc. as the transplanting substrate. Temperature requirements: the suitable temperature for growth is 12-35°C. Light requirements: it is suitable for growing in a shady, damp, ventilated, semi-shaded and semi-sunny environment, and direct sunlight must be avoided in summer. Humidity requirements: keep humidity above 60%. Watering frequency: water once a month in winter; water once every 2 weeks in spring and autumn; water once a week in summer. Water quality requirements: use neutral water or slightly acidic water.</p> <p></p> <p><strong>1. Soil requirements</strong></p><p>1. The main reason Dendrobium officinale cannot be planted in soil is that it has aerial roots and shallow roots, which means good air permeability is required. Generally, by imitating the growing environment of wild Dendrobium officinale, if stones are chosen as the substrate, air permeability will be better, but water retention will also be poorer.</p><p>2. It can be seen that a single substrate can hardly satisfy the conditions of both water retention and air permeability at the same time, so the substrate for artificially cultivating Dendrobium officinale should preferably be loose, breathable, not prone to mold, well-drained, free of pathogens, and free of hidden pests. During this period, peat, sphagnum moss, mountain stone, wood shavings, fern root, tree bark, board edges, mushroom bran, sawdust, etc. can be chosen as the transplanting substrate.</p><p></p><p><strong>2. Temperature requirements</strong></p><p>The survival temperature of Dendrobium officinale is -10°C, and the suitable temperature for growth is 12-35°C. When the temperature is relatively high in summer, shading and ventilation are needed inside the greenhouse, and frequent misting is needed to maintain moisture and lower the temperature. When the temperature is relatively low in winter, insulation is needed.</p><p></p><p><strong>3. Light requirements</strong></p><p>1. Dendrobium officinale is a semi-shade and moisture-loving plant. Wild Dendrobium officinale generally grows attached to rock cliffs at relatively high altitude, or on the bark of trees in humid environments, because these attachment hosts (rock, bark) themselves contain very little water, and some even contain no water at all (rock).</p><p>2. Dendrobium officinale is an aerial-root plant and mainly obtains nutrients by absorbing moisture and nutrients from the air. These factors all determine that Dendrobium officinale needs to be planted in a shady, damp, ventilated, semi-shaded and semi-sunny environment.</p><p>3. The native environment of Dendrobium officinale is always under tree shade and in shaded places, so the growing environment needs appropriate shading. When sunlight is strong, shade it to prevent direct sunlight, and a shade shed can be built.</p><p></p><p><strong>4. Humidity requirements</strong></p><p>During the growth of Dendrobium officinale, a hygrometer should be provided, and humidity can be kept above 60%. In overcast and rainy weather, when humidity is above 90%, ventilation needs to be strengthened to avoid the occurrence of bacterial and fungal diseases.</p><p></p><p><strong>5. Watering frequency</strong></p><p>In winter, water once every 1 month; in spring and autumn, water once every 2 weeks; in summer, water once every 1 week.</p><p></p><p><strong>6. Water quality requirements</strong></p><p>When watering, mist frequently and avoid drenching thoroughly too often. Usually, wait until the substrate is dry before drenching thoroughly. The water quality needs to be neutral water or slightly acidic water.</p><p></p><p><strong>7. Pest prevention</strong></p><p>Dendrobium officinale suffers relatively few pests and diseases. Generally, when good ventilation is maintained, no special pesticide control is needed. If pests occur, they need to be dealt with according to the specific situation.</p><p></p><p><strong>8. Fertilization requirements</strong></p><p>Fertilization requires applying thin fertilizer frequently, and heavy fertilizer must absolutely not be used, otherwise fertilizer damage is likely to occur.</p><p></p><p><strong>9. Ventilation requirements</strong></p><p>Ventilation and air circulation are also relatively important to the roots in the substrate, so it is recommended to choose materials with relatively good air permeability. Also, when watering, be sure to water thoroughly to bring fresh air into the substrate. Circulating air is very important to Dendrobium officinale, and at the same time it can also reduce the occurrence of diseases.</p>
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How to Grow the Red Heart Lotus Succulent: A Complete Guide to Care Methods
Summary Growth temperature: The red heart lotus succulent grows best at around 15-25°C, and the maximum temperature in summer should not exceed 30°C. Proper light: It loves light and needs to be placed in a sunny spot for care; in shady places it easily becomes leggy. Water: Keep the potting soil at a certain level of moisture.
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How to Grow Red Diamond Flower? Detailed Guide to Cultivation Methods and Precautions
Summary Temperature: The suitable growing temperature is around 10-20°C, and in winter it must not drop below 0°C. Light: Provide appropriate shade in summer, and full sun for the other three seasons. Soil: Use a mix of peat soil and perlite. Watering: Water daily in hot weather, and in spring and autumn every
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