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How to prevent and control rose rust? These methods you need to master
I. Symptoms Rose rust is a major disease of roses, common throughout southwest China, and more severe in areas with warm weather year-round and rainy, foggy winters. According to the author's surveys over many years, the incidence rate in some areas of our province is as high as 80%. White-flowered and purple-flowered roses are both infected, causing leaf drop, affecting growth and flowering, and it also...
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How to fertilize mulberry trees for high yields? These methods you need to master
What kind of fertilization method can make mulberry trees high-yielding? Please advise. Mulberry is a crop with a high fertilizer requirement, and sufficient fertilizer must be applied to obtain high yields. The annual fertilizer amount for one mu of mature mulberry forest is 240 jin of urea, 200 jin of superphosphate, 40 jin of potash fertilizer, and 2000 jin of organic fertilizer. It is applied in 4 rounds throughout the year, with spring fertilizer in mid-March...
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How to manage bitter melon in summer high temperatures? These methods you need to master
How to manage bitter melon in summer high temperatures? Please give an introduction to the management methods. Bitter melon roots prefer moisture and dislike waterlogging, so pay attention to digging drainage ditches normally; if heavy rain occurs, drain the field water promptly. Water use can be based on soil moisture conditions. Generally, on sunny days with strong sun and high evaporation, moisture disappears quickly, so it needs to...
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How to prevent empty sunflower seeds? You need to master these control methods
How to prevent empty sunflower seeds? Let me explain: empty seeds around the outer ring of the sunflower are mainly caused by poor pollination; empty seeds in the center of the sunflower are mainly caused by insufficient fertilizer and water and a lack of nutrients. Therefore, preventing empty sunflower seeds first means ensuring adequate fertilizer and water, and second means artificial supplementary pollination. First, strengthen fertilizer and water management. Sun...
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How to prevent yield loss during wheat harvest? Practical measures you need to know
How to prevent yield loss during wheat harvest? What factors can cause yield loss? The maturation process of wheat includes two stages: the dough stage and the full-ripe stage, and the best time to harvest is the late dough stage. This is because the thousand-grain weight of the kernels reaches its maximum at the late dough stage, and harvesting at this time gives the highest yield. If the harvest time is improper, too early or too late...
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How to prevent and control Osmanthus brown spot disease? These methods you need to know
Osmanthus brown spot disease is a common disease of osmanthus, caused by infection with fungi of the subphylum Deuteromycotina. It occurs in both field-planted and potted osmanthus plants. When it strikes, mild cases affect the ornamental effect, while severe cases cause plant death. Symptoms mostly occur on leaves, mostly spreading from the leaf tip and leaf margin toward the entire leaf. In the early stage, the lesions are light...
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What diseases need to be prevented and controlled in the cultivation of yardlong beans?
What diseases need to be prevented and controlled in the yardlong beans being grown? Please give an introduction. The main diseases of cultivated yardlong beans are as follows: 1. Identification and control of cercospora leaf spot. 1. Symptoms: It mainly damages leaves, stems and vines, and pods. In the early stage of the disease, purple-brown spots appear on both sides of the leaves. After they expand, they become nearly round dark brown lesions, 1~2 cm in diameter...
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How to harvest wheat after it lodges? These methods you need to master
How to harvest lodged wheat? Here are the methods. When wheat is affected by wind and rain or improper fertilization, lodging at maturity occurs every year. If harvested by conventional methods, it will cause about 13% grain loss. So how do you harvest lodged wheat: 1. Install lifter guards. Some harvesters are already equipped with lifter guards at the factory...
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What diseases need to be prevented and controlled during lotus root cultivation?
What diseases need to be prevented and controlled when growing lotus root? Please give an introduction. Lotus root is a high-yield, high-efficiency aquatic cash crop and a vegetable variety commonly eaten by the general public. It is widely cultivated in various regions, and with the adjustment of industrial structures in various places, its cultivation area tends to keep expanding. In recent years, lotus root diseases have become increasingly serious...
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How to prevent and control kiwifruit chlorosis? These cultivation techniques you need to master
How to prevent and control kiwifruit chlorosis? Please introduce the prevention and control methods. Kiwifruit chlorosis can be prevented and controlled by referring to the following methods: Build the orchard in a suitable location and choose a good site. The soil pH of a production orchard should be between 5.5 and 7.5. The soil should preferably be light loam, medium loam, or well-aerated sandy loam, with organic matter content in the topsoil above 1.5%, and the groundwater level below 1 m. Avoid establishing an orchard on replanted land where perennial trees such as apple, pear, and peach have already been grown, or on heavy clay soil. It should also not be established in areas with a high groundwater level that are prone to waterlogging.
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