- 行业: Agriculture
- Number of terms: 29629
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The uppermost part of the soil ordinarily moved in tillage, or its equivalent in uncultivated soils. Topsoil ranges from 8-10 cm to 20-25 cm in depth. It is frequently designated as the plow layer.
Industry:Agriculture
A sequence of soils in the landscape, from the crest to the valley bottom.
Industry:Agriculture
The application of fertilizer materials after seeding or transplanting or after the crop has been established.
Industry:Agriculture
A cross between a selection, line, or clone, and a common pollen parent which may be a variety, inbred line, or a single cross. The common pollen parent is called the topcross or tester parent.
Industry:Agriculture
Ability of a plant to withstand stress without yield reduction or injury.
Industry:Agriculture
A condition in which the yellowish seedlings die after the second foliage leaf is formed. The leaf apexes wither and die.
Industry:Agriculture
A technique of growing large pieces of tissue (explant) from different parts of a plant in semisolid or liquid medium under aseptic conditions. After the culture, masses of undifferentiated tissue are produced or plants are regenerated.
Industry:Agriculture
The physical condition of the soil as related to its ease of tillage, fitness as a seedbed, and its impedance to seeding emergence and root penetration.
Industry:Agriculture
Growth stage of the rice plant that extends from the appearance of the first tiller until the maximum tiller number is reached.
Industry:Agriculture
