The porous structure or condition of soil when its particles are moderately aggregated.
（土壤的）团块状结构（或状况）
good crumb structure depends on the amounts of clay and organic matter in the soil
Example sentencesExamples
The sponginess of the crumb structure is extremely conducive to soil aeration, and to infiltration of water and dissolved nutrients into the soil.
Soils which have lost crumb structure need mulch cover to re-build.
It usually has granular or crumb structure, but it has subangular blocky structure in some pedons.
Amongst all kind of structures described above the crumb structure is the most ideal for crops.
However, even heavy soils and subsoils can drain adequately if they have good crumb structure.
It has weak subangular blocky to weak granular or crumb structure or it is massive.
Prairie soil, having a crumb structure of bigger constituent parts, is ‘fluffier’ than agricultural soil, which is another way of saying it's less dense.
The crumb structure also allows water to soak into the soil from rain, especially heavy rains.
A soil with good crumb structure usually has some clay, some sand and some organic matter.
Definition of crumb structure in US English:
crumb structure
noun
The porous structure or condition of soil when its particles are moderately aggregated.
（土壤的）团块状结构（或状况）
good crumb structure depends on the amounts of clay and organic matter in the soil
Example sentencesExamples
Prairie soil, having a crumb structure of bigger constituent parts, is ‘fluffier’ than agricultural soil, which is another way of saying it's less dense.
The crumb structure also allows water to soak into the soil from rain, especially heavy rains.
However, even heavy soils and subsoils can drain adequately if they have good crumb structure.
It has weak subangular blocky to weak granular or crumb structure or it is massive.
A soil with good crumb structure usually has some clay, some sand and some organic matter.
The sponginess of the crumb structure is extremely conducive to soil aeration, and to infiltration of water and dissolved nutrients into the soil.
It usually has granular or crumb structure, but it has subangular blocky structure in some pedons.
Soils which have lost crumb structure need mulch cover to re-build.
Amongst all kind of structures described above the crumb structure is the most ideal for crops.