Mulch

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mulch,

any material, usually organic, that is spread on the ground to protect the soil and the roots of plants from the effects of soil crusting, erosion, or freezing; it is also used to retard the growth of weeds. A mulch may be made of materials such as straw, sawdust, grass clippings, peat moss, leaves, or paper. For large areas under cultivation a tilled layer of soil serves the purpose of a mulch.

Mulch

A layer of material such as wood chips, straw, and/or leaves, placed around plants to hold moisture, prevent weed growth, and enrich or sterilize the soil.

Mulch

 

a cover made of straw, reeds, and other longstemmed plants. A mulch is used to protect plants in greenhouses from cold temperatures at night; in very cold weather it is also used during the day. Mulches are made with a hand-operated tool or by a matting machine.


Mulch

 

a complete or interrow covering (as of mulch paper, crumbled peat, pulverized manure, humus, compost, or fallen leaves) on the soil. Mulching materials are used in agriculture in the cultivation of vegetables, fruits, berries, ornamentals, and other crops. Mulch reduces labor expenditures on interrow tilling and improves plant-growing conditions and soil fertility by conserving soil moisture, reducing the amplitude of soil temperature fluctuation, protecting the soil surface against scouring, preventing the formation of a soil crust, and preventing weed growth. As a rule, mulch increases the harvest of agricultural crops, particularly in arid regions. It is less effective on heavy and overly moist soils, on which it may even reduce the harvest.

The stubble of cereal grasses left on the fields for the winter plays the same role as mulch by protecting the soil against erosion. This procedure is of particular importance in the steppe regions of the USSR, where strong winds often prevail (Altai and Krasnoiarsk krais, Novosibirsk and Omsk oblasts, the northern part of the Kazakh SSR).

REFERENCES

Plodovodstvo, 2nd ed. [Edited by V. A. Kolesnikov.] Moscow, 1966. Pages 261–63.
Rubtsov, M. I., and V. P. Matveev. Ovoshchevodstvo. Moscow, 1970. Pages 181–82.

mulch

[məlch]
(materials)
A mixture of organic material, such as straw, peat moss, or leaves, that is spread over soil to prevent evaporation, maintain an even soil temperature, prevent erosion, control weeds, and enrich soil.

mulch

Material such as leaves, hay, straw, or the like, spread over the surface of the ground to protect the roots of newly planted shrubs or trees, of tender plants, etc., from the sun or from the cold.
References in periodicals archive ?
The soil temperature was significantly different between the mulched and control treatments in the early growing stages of maize.
2 times higher in the plots mulched with a 10 cm thick mulch layer compared with a 5 cm thick mulch layer.
Mulched sunflower crops gave significantly higher leaf area than bare ground.
It produces a fruiting body that orients toward bright surfaces, such as light-colored houses or even parked cars in mulched parking lots.
All input requirements for mulched and unmulched plots were determined.
Mulch is also effective in keeping the ground temperature consistent in spring, and slowing the thawing process so that the mulched lilies will emerge a little later than those without mulch, and perhaps escape late spring frosts.
The pellets did not break down and spread out to cover the soil surface as much as was expected, resulting in discrete spots of mulched and unmulched soil.
Temperature treatments were chosen based on field soil temperatures measured during spring 2003 in the field that was mulched in late 2002 (Fig.
There were some sediment surges coming from the mulched plots, but U.
Department of Agriculture compared runoff from differently mulched fields that were planted with tomatoes.
Mulching times vary depending on the type and condition of the material being mulched, the company said.
5-7[degrees]F) warmer in stone mulched soils compared to bare soils.