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What are the control methods for navel orange fruit cracking?
I. Causes 1. Climate: high temperature and drought in summer damage the peel tissue and cells; excessive rainfall after a long drought causes water uptake, creating excessive turgor pressure that damages the peel; 2. Peel factors: the peel tends toward maturity, the peel becomes thinner, and the flesh becomes softer; sugars in the juice continuously accumulate, accelerating water uptake and increasing turgor pressure; 3. Cultivation...
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Cultivation Technical Key Points for the Late Navel Orange Variety
1. Adaptability and suitable cultivation areas: It has relatively wide adaptability and can be planted in all navel orange suitable areas in China, but after planting there have been reports of low or unstable yields. 2. Cultivation technical key points and precautions: (1) Suitable rootstock and strong seedlings, rational planting: In acidic and neutral soils, trifoliate orange rootstock can be used; but in alkaline [soils], it is advisable to use...
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Detailed Explanation of Summer Pruning Techniques and Methods for Navel Oranges
I. Variety Selection and Orchard Establishment. Through our comparative observation of 15 navel orange strains introduced and suitable for the subtropical humid climate, we found that Newhall, Linna, Frost, Fukumoto, and New-79 displayed high and stable yields, excellent quality, and strong marketability, making them valuable for promotion and development. The selection of navel orange seedlings should ensure...
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Detailed Explanation of Control Methods for the Three Major Diseases of Navel Orange
When navel orange was top-grafted onto mature Satsuma mandarin trees, the fruiting characteristics appeared normal in the first two years, but thereafter varietal degeneration symptoms appeared year by year: shorter shoots, smaller leaves, lighter leaf color, weaker tree vigor; lower fruiting rate, smaller fruit size, dull and lusterless peel, weaker flavor, and declining fruit quality. In production practice...
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Do Oranges Also Have "Male" and "Female"? 3 Tricks to Pick Thin-Skinned, Juicy, Extra-Sweet Oranges
When it comes to the taste of oranges, everyone surely thinks of that sweet-and-sour flavor, but as a fruit we all quite enjoy eating, plenty of people are still willing to buy them. After all, oranges are not expensive, but when we buy them we always have to pick through them a bit...
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Key management techniques for navel oranges in June-July
How should navel oranges be managed in June-July? Please provide an introduction to the management methods. Navel orange is one of the important varieties in citrus production, especially the preferred variety for processing orange juice. Therefore, in recent years, the planting area of navel oranges has shown an increasing trend. June-July is one of the key periods in high-quality, high-yield cultivation of navel oranges, and cultivation management must be effectively strengthened...
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Causes of Navel Orange Fruit Cracking and Control Methods
Why do navel oranges crack? How should they be prevented and controlled? Please give guidance. Generally, navel orange fruit cracking mostly occurs during the rapid fruit expansion stage and the fruit ripening stage. This is caused by the combined effects of fluctuations in soil moisture, temperature and relative air humidity, which make the flesh grow faster than the peel. Preventing and controlling navel orange fruit cracking...
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What are the main diseases of navel oranges? A detailed explanation
What are the main diseases of navel oranges? How should these diseases be prevented and controlled? Please introduce them. Fruit cracking, sunburn and navel yellow are the three major physiological diseases of navel oranges, and many first-time growers lack experience in preventing and controlling them. After years of trials, the author has accumulated rich experience in preventing and controlling navel orange fruit cracking, sunburn and navel yellow, and has effectively controlled...
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Introduction: Why do navel oranges need "thinning spring shoots and removing summer shoots"
Scientifically "thinning spring shoots and removing summer shoots" on navel orange trees in the year before they come into production or after they have come into production is an important measure for retaining fruit and increasing yield. However, because many fruit growers do not know how to use it or apply it improperly, they not only fail to achieve the expected goal of a bumper harvest, but instead end up with small navel orange tree canopies, few branches and leaves, and low yields. The following is "thinning spring shoots...
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What are the respective effects of applying various fertilizers to navel oranges?
What effects do various fertilizers have on navel oranges? Please provide a detailed introduction. Like other citrus, navel oranges require an adequate supply of nutrients for growth and fruiting, and there are sixteen essential nutrient elements. According to the required amounts of mineral elements, they can be divided into macronutrients (nitrogen, phosphorus, potassium), secondary nutrients (calcium, magnesium, sulfur) and micronutrients...
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