2.1.3.3. Mulch tillage.A tillage system that ensures a maximum
retention of crop residues on soil surface is known as mulch tillage
or stubble mulch farming. The soil is prepared in such a way that
plant residue or other mulching materials are specifically left on or
near the surface. Mulch tillage is a broad term. It includes practices
such as no-till, disc plant system, chisel plant system, and strip
tillage systems. When a grain crop is seeded through the mulch of a
chemically killed cover crop, it is called sod seeding. If the cover
crop is untreated or only temporarily suppressed, the system is
called live mulch. When a cover crop is grown within the cropping
cycle to produce mulching material, the system is called fallow
planting. Mulch tillage is also within agro-forestry systems, a
common practice is alley cropping where annual crops are grown
within widely spaced hedges of perennial shrubs. The hedges are
planted on the contour and are regularly pruned to provide mulch.
The greater retention of crop residues in the surface soil under
chisel ploughing, compared to mouldboard ploughing, can increase
surface soil organic matter and biological activity, and soil
structural stability (Carter, 1992). Overtime such differences
2.1.3.3. Mulch tillage.A tillage system that ensures a maximum
retention of crop residues on soil surface is known as mulch tillage
or stubble mulch farming. The soil is prepared in such a way that
plant residue or other mulching materials are specifically left on or
near the surface. Mulch tillage is a broad term. It includes practices
such as no-till, disc plant system, chisel plant system, and strip
tillage systems. When a grain crop is seeded through the mulch of a
chemically killed cover crop, it is called sod seeding. If the cover
crop is untreated or only temporarily suppressed, the system is
called live mulch. When a cover crop is grown within the cropping
cycle to produce mulching material, the system is called fallow
planting. Mulch tillage is also within agro-forestry systems, a
common practice is alley cropping where annual crops are grown
within widely spaced hedges of perennial shrubs. The hedges are
planted on the contour and are regularly pruned to provide mulch.
The greater retention of crop residues in the surface soil under
chisel ploughing, compared to mouldboard ploughing, can increase
surface soil organic matter and biological activity, and soil
structural stability (Carter, 1992). Overtime such differences
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