crabgrass

简明释义

英[ˈkræbɡrɑːs]美[ˈkræbɡræs]

n. 马唐草

英英释义

单词用法

同义词

反义词

例句

1.There is no obvious difference among shandong main ginger production areas, the main weeds are: Common crabgrass, Goosegrass, Redroot amaranth, Purslane, Rice galingale.

山东省生姜主要产区杂草差异性不大，主要为马唐、牛筋草、反枝苋、马齿苋、香附子。

2.There is no obvious difference among shandong main ginger production areas, the main weeds are: Common crabgrass, Goosegrass, Redroot amaranth, Purslane, Rice galingale.

山东省生姜主要产区杂草差异性不大，主要为马唐、牛筋草、反枝苋、马齿苋、香附子。

3.The main plant is crabgrass and tail millet (soil salinity representative of plants) and other grass.

主要植物是马唐和鼠尾粟(盐碱土壤的代表植物)等茅草。

4.This will allow grass blades to shade the ground, and will help prevent crabgrass from sprouting.

这将允许基层叶片底纹地面，将有助于防止马唐从发芽。

5.His beard is of a medium length but seems to grow with the irrational abandon of crabgrass.

他的胡须长度中等，却好像马唐草一样，长得杂乱无章。

6.The compound has good herbicidal function to crabgrass and abutilon.

本发明的化合物对马唐、苘麻具有良好的除草作用。

7.Crabgrass is usually best handled by the use of a pre-emergent.

马唐通常是最好的处理由前使用紧急。

8.He was 44, divorced, his backyard overrun with crabgrass.

他44岁，离异，后院长满了杂草。

9.After a heavy rain, the lawn was overrun with crabgrass.

经过一场大雨，草坪上满是狗尾草。

10.I spent the weekend pulling out crabgrass from my garden.

我花了一个周末从我的花园里拔掉狗尾草。

11.To keep your lawn healthy, you need to control crabgrass growth.

为了保持草坪健康，你需要控制狗尾草的生长。

12.The landscaper recommended a pre-emergent herbicide to prevent crabgrass.

园艺师建议使用一种预防性除草剂来防止狗尾草。

13.In summer, crabgrass can spread quickly if not managed properly.

在夏天，如果不妥善管理，狗尾草会迅速扩散。

作文

The summer season often brings vibrant colors and lush greenery to our gardens and lawns. However, it also introduces a common nuisance for many homeowners: crabgrass. This invasive weed can quickly take over a lawn, choking out the desired grass and plants that we work so hard to cultivate. Understanding crabgrass and how to manage it is essential for maintaining a healthy and beautiful yard. Crabgrass (杂草) thrives in warm weather and is particularly prevalent in areas with full sun exposure. It typically germinates in late spring and early summer when soil temperatures rise. One of the reasons crabgrass is so successful is its ability to spread rapidly. Each plant can produce thousands of seeds, which can lie dormant in the soil for several years before germinating. This means that even if you think you've eradicated crabgrass from your lawn, it may still be lurking beneath the surface, ready to spring back to life when conditions are favorable. To effectively manage crabgrass, it is crucial to adopt a proactive approach. The first step is to maintain a healthy lawn. A thick, dense lawn can help prevent crabgrass from taking root by outcompeting it for sunlight and nutrients. Regular mowing, proper watering, and fertilization are key components of lawn care that can help keep your grass strong and resilient against weeds. Another effective strategy for controlling crabgrass is to use pre-emergent herbicides. These products create a barrier in the soil that prevents crabgrass seeds from germinating. Timing is critical when applying these herbicides; they should be applied before the soil temperature reaches 55 degrees Fahrenheit, which is when crabgrass typically begins to sprout. Additionally, it’s essential to follow the instructions on the product label carefully to ensure effectiveness and safety. If crabgrass has already established itself in your lawn, there are several methods for removal. Hand-pulling can be effective for small patches, but it’s important to remove the entire root system to prevent regrowth. For larger infestations, post-emergent herbicides can be used. These products target actively growing crabgrass and can help control its spread. However, caution should be exercised to avoid damaging desirable grass species in the process. In addition to chemical controls, cultural practices can also aid in managing crabgrass. For example, overseeding your lawn in the fall with desirable grass species can help fill in bare spots where crabgrass may take hold. Furthermore, reducing soil compaction through aeration can improve drainage and promote healthier grass growth, making it more difficult for crabgrass to thrive. In conclusion, while crabgrass can be a frustrating challenge for homeowners, it is not insurmountable. By understanding its growth habits and implementing effective management strategies, you can keep your lawn healthy and beautiful. Remember, a proactive approach is always better than a reactive one. With diligence and care, you can minimize the impact of crabgrass and enjoy a lush, green lawn all summer long.

夏季常常为我们的花园和草坪带来生机勃勃的色彩和郁郁葱葱的绿意。然而，它也给许多房主带来了一个常见的烦恼：crabgrass（杂草）。这种侵入性杂草可以迅速占领草坪，扼杀我们辛苦栽培的草和植物。理解crabgrass及其管理方法对于保持健康美丽的庭院至关重要。 Crabgrass（杂草）在温暖的天气中繁盛，特别是在阳光充足的地区尤为普遍。它通常在春末和夏初发芽，当时土壤温度上升。Crabgrass之所以如此成功，是因为它能够快速传播。每株植物可以产生数千个种子，这些种子可以在土壤中潜伏多年，直到适宜的条件下才会发芽。这意味着，即使你认为已经根除crabgrass，它仍可能潜伏在表面下，准备在条件合适时重新生长。 为了有效管理crabgrass，采取主动的方式至关重要。第一步是维护一个健康的草坪。茂密的草坪可以通过与杂草争夺阳光和养分来帮助防止crabgrass扎根。定期修剪、适当浇水和施肥是草坪护理的关键组成部分，可以帮助保持草的强壮和抵御杂草的能力。 控制crabgrass的另一个有效策略是使用预防性除草剂。这些产品在土壤中形成屏障，防止crabgrass种子发芽。施用这些除草剂的时机至关重要；应在土壤温度达到华氏55度之前施用，因为这通常是crabgrass开始发芽的时间。此外，务必仔细遵循产品标签上的说明，以确保有效性和安全性。 如果crabgrass已经在你的草坪上扎根，有几种去除方法。手动拔除对小块区域有效，但必须完全去除根系以防止再生。对于较大范围的感染，可以使用后发芽除草剂。这些产品针对活跃生长的crabgrass，可以帮助控制其扩散。然而，使用时需谨慎，以免损害所需的草种。 除了化学控制，文化实践也可以帮助管理crabgrass。例如，在秋季用所需草种进行草坪补播可以帮助填补crabgrass可能扎根的裸露区域。此外，通过通气减少土壤压实可以改善排水并促进更健康的草生长，从而使crabgrass更难生存。 总之，虽然crabgrass可能是房主们令人沮丧的挑战，但并非不可克服。通过了解它的生长习性并实施有效的管理策略，你可以保持草坪的健康和美丽。记住，主动的方法总比被动的方法好。只要勤奋和细心，就能最大限度地减少crabgrass的影响，享受整个夏天郁郁葱葱的草坪。