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 ?
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.
Profitability seems to depend more on the cost of mulch material purchase and plant growth than labor cost for mulched plots, but not for unprotected control.
Fresh Sapium mulch was collected from a recently mulched Sapium restoration area at Armand Bayou Nature Center.
That's four times the runoff from a field mulched with material from a plant known as hairy vetch.
Dorothy Booher, Curtin, Oregon: "We grow everything from asparagus to strawberries, and all our crops are mulched.
Even plants that grow well enough in our climate without special treatment - from roses to tomatoes - will produce more flowers and fruit when mulched.
From the perspective of preserving its moisture, a plant might do better if it is mulched with white, which will give its leaves more wax, he says.
Stout did just one thing: She mulched and mulched and mulched some more.
This year's surprise, he says, he how well white mulch appears to be improving bell pepper and potato production over yields in sandy (light-colored) soil and plots mulched with straw painted yellow, red or blue.
Whether the weather stays warm or slides into autumnal temperatures, all your woody plantings will benefit from being mulched.
In the area to be mulched, you chop down any existing vegetation but leave it in place.