根据上文“If several seedlings come up in one container, cut the weakest at the soil line using small scissors.”及常识可知,剪去最弱的是为了留下生长能力强 的幼苗。D项“The aim is to keep only one strong-looking plant.”符合题意,strong-looking呼应上文的weakest。故选D项。 反馈 收藏 ...
plants from seeds is timing. Knowing when to move seedlings outside is critical to a plant’s success. Wait too long and you risk a root bound plant and transplanting too soon means your plant may not be strong enough to survive the elements and shock from being moved to a new ...
While it's not comparable to using a grow light or the sun, it coul d offer plants extr a power.Some plants, including tomatoes, nee d more light than those like Arabidopsis; new seedlings nee d less light than fully-grown plants. As you choose your seeds an d seedlings, research ...
Strong seedlings are one of the keys to a successful flower garden. When to Plant Perennial Flowers Perennials are plants that are capable of surviving 2 or more years. While they may die back to the ground in winter, their roots survive underground and produce new foliage as the increased ...
These crops typically reach maturity quickly, so to determine when to plant, simply count back from your average first frost date and calculate days until maturity; add in what we refer to as “fall factor” for slower rate of growth due to shorter and cooler autumn days. ...
Whether you have a green thumb or are just starting out, knowing when to plant vegetables can be tricky. Here's a month by month guide on when to plant your vegetables!
They remove the need to transfer seedlings as often, minimizing root disturbance. Simply sow them into the plugs, then grow them until it’s time to plant them, though they may need transplanting into bigger plugs or pots if the roots fill their plugs before it’s time to plant them out...
Some facts about seeds Most plants have seeds. When you put a seed in the ground and water it, a new plant will grow from it. First, a seedling comes out of the soil. Then it grows into a plant.Seeds often travel to faraway places. If seeds don't travel, too many plants will gr...
seedlings seed stem roots What will astronauts(宇航员)eat when a space trip takes years?" Lots of fresh vegetables, " says Dr. Janet Williams, whose team have spent the last 10 years learning how to grow plants in a space station. And it's a good thing that she has already started he...
The brown middle of the sunflower will mature into a seed head after the petals fall off. You can harvest them and eat them (seeds make anutrient-rich snack), or save the seeds to replant next year’s garden. If you’re growing sunflowers to save and eat the seed, do the following...