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Navel Orange Cultivation Techniques: How to Prevent and Control Physiological Diseases of Navel Oranges?
How to prevent and control physiological diseases of navel oranges? Please provide an introduction. The main physiological diseases of navel oranges are fruit cracking, sunburn, and navel yellowing. For control methods, please refer to the following list: Control methods for navel orange fruit cracking. For navel orange fruit cracking, first select varieties (lines) with strong cracking resistance. Generally, varieties (lines) with oval fruit shape, small navel or closed navel have better cracking resistance, such as Newhall and others. Second, strengthen scientific management to enhance tree vigor. Especially during the drought period after the plum rain and before the autumn rains arrive, water management must be done particularly well, with timely irrigation or watering (sprinkling) to keep the soil moist and promote normal fruit growth and development. Third, during the rapid fruit expansion period, spray foliar potassium fertilizer 2 to 3 times consecutively.
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What diseases need to be prevented and controlled when growing cucumbers? A detailed guide to cultivation techniques
What diseases need to be prevented and controlled when growing cucumbers? We ask friends with experience to help explain. The main diseases that occur during cucumber cultivation are downy mildew, powdery mildew, phytophthora blight, and bacterial angular leaf spot; below is a detailed introduction to these diseases and their control methods (for everyone's reference). 1. Cucumber downy mildew...
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What causes irregular pinning in white lingzhi mushrooms (Pleurotus nebrodensis), and how can it be prevented and controlled?
What is irregular pinning in white lingzhi mushrooms (Pleurotus nebrodensis), and how should it be prevented and controlled? Please provide an introduction and control methods. Irregular pinning in white lingzhi mushrooms means that mushroom primordia do not form normally at the two ends of the mushroom bag, but instead appear in the middle of the bag, which has a major impact on yield. The following four points can effectively prevent irregular pinning in white lingzhi mushrooms: First, the mushroom bag filling must be standardized. Try to fill the bags evenly and tightly...
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Common soybean diseases and how to prevent and control them
What diseases need to be prevented and controlled when growing soybeans? Here is an introduction. The diseases that need to be prevented and controlled when growing soybeans are: 1. Soybean root rot: This disease can occur and cause damage throughout the entire growth period of soybeans, reducing yields by 25-75% or more. The protein content of affected seeds is significantly reduced. The main symptom is the appearance of dark brown...
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What are the key measures to prevent low yields in soybean cultivation?
How can low yields be prevented in soybean cultivation? Please give guidance. In current agricultural production, soybeans are basically grown without fertilizer (especially in summer soybean production areas). The main reason is that most people believe soybeans can fix nitrogen, so growing soybeans does not require fertilizer, and they can also leave a certain amount of nitrogen for the following crop. It is precisely because of this mistaken understanding that gr...
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What management techniques are there to prevent and control grape berry cracking?
Grapes are ready for market now, but berry cracking is severe. How can grape berry cracking be prevented and controlled? We asked friends for help and have gathered a few points from Zhongdi Network on preventing and controlling grape berry cracking. The following is a detailed introduction for your reference. 1. Due to the heavy rainfall this year, during the fruit coloring stage the berries absorb water through the berry surface and roots, creating great turgor pressure inside the fruit, which has caused varying degrees of berry cracking in many grapes. Timely cultivating and loosening the soil after rain reduces fluctuations in soil moisture and can effectively prevent cracking at the top of the grapes.
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How to prevent and control gray mold in lettuce cultivation?
It is lettuce planting season once again. In previous years, gray mold has caused damage every time. How should lettuce gray mold be prevented and controlled this year? We also ask fellow growers to share their methods. The harm gray mold causes to lettuce: gray mold mainly damages lettuce leaves and the base of the stem. Seedlings are mostly affected on the stem and leaves near the ground, and after transplanting, the disease starts from the old leaves...
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Lettuce Cultivation: How to Prevent and Control Lettuce Brown Spot and Black Spot?
Last year, brown spot and black spot were found in lettuce cultivation. How to prevent and control lettuce brown spot and black spot? Are there any netizens' guidance methods to prevent and control the harm of brown spot and black spot to lettuce: Both lettuce brown spot and black spot mainly damage the leaves. Lettuce leaves harmed by brown spot show two types of symptoms: one...
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What diseases need to be prevented and controlled in white fungus (Tremella fuciformis) cultivation?
What diseases need to be prevented and controlled in white fungus cultivation? Please give an introduction. The diseases that need to be prevented and controlled in white fungus cultivation are: 1. Powdery mildew, also called white rot, the pathogen is Acremonium. Control methods: strengthen ventilation and reduce humidity in the mushroom house; when young fungi appear, spray lime-sulfur mixture, and harvest early, scrape off with a sharp knife including the roots, the fungus base can be smeared with...
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How to prevent and control eucalyptus leaf blight? Detailed control methods
How to prevent and control leaf blight in eucalyptus? What does eucalyptus leaf blight look like after it develops? Eucalyptus leaf blight is distributed throughout South China. It damages Eucalyptus exserta, Eucalyptus grandis, Eucalyptus rudis, and Eucalyptus torelliana, among others. Symptoms: The disease often occurs at the leaf tip and leaf margin. In the early stage of the disease, chlorotic spots appear on infected leaves, then gradually expand into...
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