sunscald

简明释义

英[ˈsʌnˌskɔld]美[ˈsʌnˌskɔld]

n. [植保] 日灼病

英英释义

单词用法

同义词

反义词

例句

1.These leaves may drop prematurely and as with bacterial spots can then cause sunscald.

这些叶子可能会过早掉落，并像细菌斑一样会导致日灼病。

2.These leaves may drop prematurely and as with bacterial spots can then cause sunscald.

这些叶子可能会过早掉落，并像细菌斑一样会导致日灼病。

3.After the heatwave, many gardeners reported cases of sunscald on their plants.

在热浪过后，许多园丁报告他们的植物出现了日灼的情况。

4.Applying a protective barrier can help reduce the risk of sunscald on your crops.

施加保护屏障可以帮助减少作物受到日灼的风险。

5.The young tomato plants showed signs of sunscald as their leaves turned brown under the intense sun.

由于强烈的阳光，年轻的番茄植物的叶子变成棕色，显示出日灼的迹象。

6.The fruit on the tree was damaged by sunscald, leading to a significant loss in harvest.

树上的果实因受日灼而受损，导致收成大幅减少。

7.To prevent sunscald, it's important to provide shade for delicate seedlings during the hottest part of the day.

为了防止日灼，在一天中最热的时候为娇嫩的幼苗提供阴凉是很重要的。

作文

As the summer sun blazes down, many gardeners take pride in their beautiful plants and flowers. However, there is a hidden danger that can threaten the health of these beloved specimens: sunscald. This term refers to the damage that occurs when plants are exposed to intense sunlight, particularly after a period of cold weather. The sudden change in temperature can cause the plant's tissues to become damaged, leading to unsightly brown patches on leaves or even the death of the plant. Understanding sunscald is crucial for any gardener who wants to maintain a thriving garden.One of the most common victims of sunscald are young trees. When a tree is newly planted, its bark is often thin and not yet fully developed. If a young tree experiences a warm winter day followed by a sudden drop in temperature at night, the cells in its bark can become damaged due to rapid expansion and contraction. This can lead to cracks forming in the bark, which not only detracts from the tree's appearance but also makes it vulnerable to pests and diseases. Therefore, protecting young trees from sunscald is essential for their long-term health and survival.To prevent sunscald, gardeners can take several proactive measures. One effective strategy is to provide shade for vulnerable plants during the hottest parts of the day. This can be done using shade cloths or strategically placing taller plants nearby to block direct sunlight. Additionally, wrapping the trunks of young trees with protective materials can help insulate them from extreme temperature fluctuations. Another important aspect of preventing sunscald is ensuring that plants are properly hydrated. When plants are well-watered, they are better equipped to handle stress from environmental changes.Moreover, it is essential to recognize the signs of sunscald early on. Gardeners should regularly inspect their plants for any signs of damage, such as discoloration or wilting. If sunscald is detected, it is crucial to take immediate action to mitigate further damage. This may include providing additional shade, adjusting watering schedules, or even pruning affected areas to promote new growth.In conclusion, sunscald is a significant concern for gardeners everywhere. By understanding what sunscald is and how it affects plants, gardeners can take the necessary precautions to protect their green spaces. With proper care and attention, it is possible to enjoy a vibrant and healthy garden, free from the damaging effects of sunscald. As we continue to face changing climate conditions, awareness of such phenomena becomes even more critical. With knowledge and diligence, we can ensure that our gardens flourish under the sun rather than suffer from its harsh rays.

随着夏季阳光的炙烤，许多园丁为他们美丽的植物和花卉感到自豪。然而，有一种潜在的危险可能威胁到这些心爱的植物的健康：日灼。这个术语指的是当植物暴露在强烈阳光下时发生的损害，特别是在经历了一段寒冷天气之后。温度的突然变化可能导致植物组织受损，导致叶子上出现难看的棕色斑块，甚至植物的死亡。理解日灼对任何想要维持繁荣花园的园丁来说都是至关重要的。日灼最常见的受害者之一是年轻的树木。当一棵树刚种植时，它的树皮通常较薄，尚未完全发育。如果一棵年轻树经历了一个温暖的冬天，然后在夜间突然降温，树皮中的细胞可能由于快速的膨胀和收缩而受到损害。这可能导致树皮开裂，不仅影响树木的外观，还使其容易受到害虫和疾病的侵袭。因此，保护年轻树木免受日灼的影响对于它们的长期健康和生存至关重要。为了防止日灼，园丁可以采取几项积极措施。一种有效的策略是在最热的时段为易受伤植物提供阴凉。这可以通过使用遮阳布或将较高的植物放置在附近以阻挡直射阳光来实现。此外，用保护材料包裹年轻树木的树干可以帮助隔离它们免受极端温度波动的影响。预防日灼的另一个重要方面是确保植物得到适当的水分。当植物充分浇水时，它们更能应对环境变化带来的压力。此外，识别日灼的早期迹象也至关重要。园丁应定期检查他们的植物，寻找任何损害的迹象，例如变色或枯萎。如果发现日灼，则必须立即采取行动以减轻进一步的损害。这可能包括提供额外的阴凉、调整浇水时间表，甚至修剪受影响的区域以促进新生长。总之，日灼是全球园丁面临的一个重大问题。通过了解日灼是什么以及它如何影响植物，园丁可以采取必要的预防措施来保护他们的绿地。通过适当的护理和关注，我们可以享受一个充满活力和健康的花园，免受日灼的破坏性影响。随着我们继续面临气候条件的变化，对这种现象的认识变得更加重要。通过知识和勤奋，我们可以确保我们的花园在阳光下茁壮成长，而不是遭受其严酷阳光的折磨。