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What pesticide should be used to control withered lotus leaves?
The common diseases of lotus root mainly include: rot disease, leaf blight, leaf spot, etc. Today we will talk about what pesticide to sprinkle for lotus root leaf withering, which gives everyone the biggest headache. Let's take a look together. 1. Damage symptoms of lotus root leaf blight: Generally speaking, lotus root leaf withering is leaf blight.
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How to grow Houttuynia cordata (fish mint): propagate from roots or from seeds?
Summary: Houttuynia cordata can be grown both from roots and from seeds, but root propagation grows faster. The best sowing time is around the Beginning of Spring (Lichun); in a flower pot, open furrows in the same direction for row planting, with a furrow depth of 8-10 cm, a width of 13-15 cm, and a row spacing of 20-25 cm
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Key Technical Points and Operation Methods of Vegetable Grafting Explained
Abstract Top-insertion grafting method: Pull the bamboo skewer inserted in the rootstock out, then insert the trimmed scion into the hole, with the scion cotyledons and rootstock cotyledons forming a "cross" shape. Approach grafting method: Insert the scion cut into the rootstock stem cut, the two cuts need to fit tightly together, then use a grafting clip ⟦4 <p class="cintro"><span>Abstract</span>Top-insertion grafting method: Pull the bamboo skewer inserted in the rootstock out, then insert the trimmed scion into the hole, with the scion cotyledons and rootstock cotyledons forming a "cross" shape. Approach grafting method: Insert the scion cut into the rootstock stem cut, the two cuts need to fit tightly together, then use a grafting clip to secure the joint. Cleft grafting method: Insert the trimmed scion into the cleft, keeping the rootstock and scion surfaces level, then use a grafting clip for securing.</p> <p></p> <p><strong>I. Vegetable Grafting Techniques</strong></p><p>1. Top-insertion grafting method</p><p>(1) Removing the rootstock growing point: A blade or bamboo skewer can be used to cut off the true leaves and growing point of the rootstock.</p><p>(2) Cutting the rootstock: A bamboo skewer with the same thickness as the scion hypocotyl and a wedge-shaped tip can be used, then insert it at a downward slant from the main vein of one cotyledon of the rootstock toward the other cotyledon to a depth of 1cm; generally, it is best if the outer epidermis is not pierced and the bamboo skewer is faintly visible.</p><p>(3) Cutting the scion: At 1-1.5cm below the cotyledon node, use a blade to cut it into a wedge-shaped face with a bevel length of 1cm.</p><p>(4) Grafting: Pull the bamboo skewer inserted in the rootstock out, then insert the trimmed scion into the hole, with the scion cotyledons and rootstock cotyledons forming a “cross” shape.</p><p></p><p>2. Approach grafting method</p><p>(1) Removing the rootstock growing point: A blade or bamboo skewer can be used to cut off the true leaves and growing point of the rootstock.</p><p>(2) Cutting the rootstock: At 0.5-1cm below the cotyledons, use a blade to make a downward slanting cut, with the depth needing to reach 1/2 of the stem thickness.</p><p>(3) Cutting the scion: Make an upward slanting cut at the corresponding part of the scion, generally with the depth reaching 1/2 of the stem thickness, and the cut length the same as the rootstock cut.</p><p>(4) Grafting: Insert the scion cut into the rootstock stem cut, the two cuts need to fit tightly together, then use a grafting clip to secure the joint.</p><p>(5) Root cutting: After grafting, plant the rootstock and scion together into a nutrient pot, about 1cm apart, with the joint about 3cm from the soil surface; wait 7 days for the joint to heal, then cut off the scion root; generally after 10-15 days, the grafting clip can be removed.</p><p></p><p>3. Cleft grafting method</p><p>(1) Removing the rootstock growing point: A blade or bamboo skewer can be used to cut off the true leaves and growing point of the rootstock.</p><p>(2) Cutting the rootstock: From between the 2 cotyledons, split the young stem downward, with a length of 1-1.5cm.</p><p>(3) Cutting the scion: Cut the scion young stem into a wedge shape, with a cut surface length of 1-1.5cm.</p><p>(4) Grafting: Insert the trimmed scion into the cleft, keeping the rootstock and scion surfaces level, then use a grafting clip for securing.</p><p></p><p><strong>II. Suitable Grafting Time for Vegetables</strong></p><p>1. Cucurbits: When the cotyledons are fully expanded and when the true leaves appear, this is the suitable grafting period.</p><p>2. Eggplant: When the rootstock has grown 3-4 true leaves and the scion has grown 2-3 true leaves, grafting requires retaining 1 true leaf.</p><p>3. Tomato: When the rootstock has grown 4-5 true leaves and the scion has grown 2-3 true leaves, grafting requires retaining 1 true leaf.</p>
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Detailed Explanation of Eggplant Grafting Techniques, with Operation Process
Abstract Rootstock introduction: Ping eggplant rootstock, prickly eggplant rootstock, and Torubamu rootstock have relatively high disease resistance and grafting survival rates. Scion selection: Nongyou long eggplant, Hangzhou red eggplant, Xi'an green eggplant, etc. Grafting seedling cultivation: sow the rootstock first, then the scion. Cleft grafting: when the rootstock grows to
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Detailed Guide to the Planting Time and Methods of Danshen (Salvia miltiorrhiza)
Summary Danshen root propagation time: March to April in spring. Danshen cutting propagation time: June to July in northern regions, April to May in southern regions. Danshen seed propagation time: sow in March. Danshen planting method: suitable for planting in slightly acidic or slightly alkaline
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How to Grow Yugoslavian Snow Lotus Root from Seed
Summary The cultivation of Yugoslavian snow lotus root from seed is divided into sexual reproduction and asexual reproduction. Sexual reproduction: refers to directly growing seedlings from lotus root seeds; first, break a hole in the seed coat at the end of the lotus seed that has a groove, then soak it in water at 20-30°C to promote germination, during which the water needs to be changed several
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How to Grow Ardisia crenata? Detailed Guide to Cultivation Methods and Precautions
Summary Cultivation methods: Ardisia crenata requires a mixed soil formulated into a loose, well-aerated nutrient medium; water it in a timely manner to keep the potting soil moist; water sparingly in winter to prevent frost damage; the suitable growing temperature is around 16-28°C; during growth, nitrogen fertilizer, phosphorus fertilizer, potassium fertilizer and an appropriate amount of organic fertilizer can be applied.
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How to Remove Cogongrass Roots? Learn How to Completely Eliminate Cogongrass
Summary There are three methods for removing cogongrass roots: the first is to use a digging tool to remove the cogongrass together with its roots; the second is to apply 10.8% haloxyfop-R-methyl or 15% quizalofop-p-ethyl to the cogongrass; the third is to burn the cogongrass and then dig out its roots. Cogongrass is
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Saposhnikovia divaricata planting technology: root segment propagation harvested in the same year, seed sowing harvested in two years
Abstract Environment: It is suitable to plant in warm and humid areas, choosing sandy soil with deep soil layers, good drainage and irrigation conditions, and loose and fertile texture. Planting method: Raise seedlings and plant after the beginning of spring, plant upright into the holes, and water after planting. Direct sowing: The sowing rate is about 1.5 kg per mu.
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Asparagus cochinchinensis yields 6,000 to 8,000 jin of fresh roots per mu, and 600 to 800 jin of dried roots.
Abstract The yield per mu of Asparagus cochinchinensis is mainly determined by its growing environment and cultivation techniques. Generally, Asparagus cochinchinensis needs to be grown for 2-3 years before it can be dug up. The yield of fresh Asparagus cochinchinensis roots per mu is about 6000-8000 jin, and the yield of dried Asparagus cochinchinensis roots per mu is about 600-800 jin. I. Yield per mu of Asparagus cochinchinensis
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