The bare ground between plants is covered with a layer of organic matter like a straw is called as

Correct option is D

The correct answer is (d).
Explanation
Mulching is the practice of covering the bare soil around plants with organic materials such as straw, dry leaves, grass, or compost, or with inorganic materials like plastic sheets. It helps conserve soil moisture, suppress weeds, regulate soil temperature, and improve soil fertility as the organic mulch decomposes.
Additional Information
· Option {a} is incorrect because {Shelter belts are rows of trees or shrubs planted to reduce wind speed and protect crops from wind erosion}.
· Option {b} is incorrect because {Intercropping is the practice of growing two or more crops simultaneously in the same field in a definite row pattern}.
· Option {c} is incorrect because {Terrace farming is practiced on hill slopes by converting the land into step-like terraces to reduce soil erosion and runoff}.
· {Organic mulching materials include straw, dry leaves, wood chips, compost, and crop residues, while plastic mulch is commonly used in commercial horticulture.}