The mass formed by the roots of a plant and the soil surrounding them.
根团（指植物的根部及其周围的土构成的团块）
Example sentencesExamples
If a perennial has been in the same location for several years and you've noticed a decline in its flower output, dig up the plant and divide the root ball with a spade or hatchet into two, three or four pieces.
Loosen any roots that are encircling the root ball, replant at same depth as originally planted.
You can also drill several holes in the trunk, near the root ball, and inject stump killer into the holes with a baster.
But have you considered a live tree with the root ball intact that you can plant after the holidays?
Move the entire root ball to the new planting spot, plant as usual, and mound the entire plant with soil.
To set out transplants, he simply makes a hole in the mulch and digs out enough soil to accommodate the root ball.
Backfilling with the clay soil that you removed is actually like building a dam to keep excess water from permeating the root ball of your newly planted tree.
Place good soil under root ball so that the plant will be the same depth it grew as before.
Tie the ends of the burlap to keep the root ball and soil intact, then lift the shrub - by the burlap and the bottom - into a wheelbarrow and move it to the new spot.
To make the moving easier, slip a large piece of sturdy plastic under the heavy, soil-laden root ball.
Then ease the rose from its container, taking great care to plant the entire root ball intact, cover with soil and firm in.
They should easily survive transplanting as long as the soil around the root ball is not unduly disturbed as you lift the clumps from the garden.
Dig as large a root ball as is possible (make sure soil is moist); the more roots preserved, the less the transplanting process will hinder the plant's growth.
Remove the jasmine from its old pot and plant it in the new container, being careful not to damage the root ball, and firm the potting soil down with your fingers.
Add more potting medium around the root ball, and tamp out air pockets.
Care for them as you do any other house plant until mid-April when they can be slipped with root balls undisturbed into garden soil.
Use your chopstick to work soil under the root ball and down to the bottom of the container; this eliminates air pockets that can dry out your roots and kill them.
You might want to put a rock or brick pedestal under the root ball to keep the root ball from sinking.
For best results, water a young, unestablished tree directly over the root ball.
Staking in this way prevents the root ball of the tree from being rocked and loosened but allows the head of the tree to move with the wind - this encourages strong trunk growth.