Question

Mulching means
A. Raising the plants against the slope
B. shallow ploughing
C. Planting of crops in rows
D. Layer-formed by stubble and grass

Answer 1

Mulching is a material or layer applied to the soil surface to inhibit weed growth, provide shade and to reduce evaporation or transpiration. It is actually a soil amendment technique.

Complete answer: Mulching means to cover the soil by some means. Basically, a layer is laid on the soil to prevent erosion and sometimes to enrich the soil. So, mulching is a layer formed by stubble and grasses. It is a covering of the compost or manure, straw or plastic spread on the ground to prevent soil erosion and evaporation. A mulch can be the layer of dried old leaves and small pieces of wood as well. The mulching can be applied either directly in the bare soil or around the existing plants. Raising the plant against the slope can prevent soil erosion. Planting crops in rows is called a row crop. It is basically done seasonally through agricultural machinery. Row crops are grown on irrigated lands and crops that can be grown via this method includes cotton, wheat, sugarcane, corn, etc.
Hence, the correct answer is option D.

Note: An activity of an earthworm and other organisms naturally incorporate the mulches of the compost or manure. Mulching also enriches the soil and inhibits weed growth. Mulching can be done in summer to retain soil moisture by preventing evaporation. Long term mulching leads to the formation of new soil.