Important Terms Related to DryLand Agriculture for different competitive Exams

Agri-silviculture: Conscious and deliberate use of land for the concurrent production of agricultural and forest crops is called agri-silviculture.

Agri-silvi-pastural system: System in which land is managed for the concurrent production of agriculture and forest crops and for the rearing of domesticated animals is called agri-silvi-pastural system.

Agroforestry: Self-sustaining land management system which combines production of agricultural crops with that of tree crops as also with that of livestock simultaneously or sequentially on the same unit of land is called agroforestry.

Atmospheric drought: Drought caused by low air humidity accompanied by hot and dry winds and when the rate of transpiration is more than the rate of moisture absorption by plants is called atmospheric drought.

Basin listing: Tillage that forms lister furrows at regular intervals to create small basins to capture and store rain or applied water.

Dead furrows: Plough furrows made between the crop rows at an interval of 3-4 m depending on the crop as a means of moisture conservation are called dead furrows.

Drought escaping: Plants escaping the drought by way of early maturity before the available water is exhausted is called drought escaping.

Drought evading: Plant evading drought by way of limited amount of growth giving reduced transpiring surface is called drought evading.

Drought year: When the annual rainfall is less than normal by more than twice the mean deviation, it is called drought year.

Minimal irrigation: Irrigation of rabi crops which do not receive rains after sowing is called minimal irrigation.

Soil drought: Drought that occurs when the moisture present in the soil absorbed by the plant is less than the potential evapotranspiration of the crop is called soil drought.

Soil or dust mulch: Thin layer of loose soil surface that can be created by frequently stirring the soil with surface tillage implements to conserve moisture is called soil or dust mulch.

Watershed: Any surface area from which rainfall is collected and drains through a common point is called a watershed.

Watershed management: Integration of technologies within the natural boundaries of a drainage area for optimum development of land, water and plant resources to meet the basic needs of the people and animals in a sustained manner is watershed management.

Wind breaks: Any structure that obstructs wind flow and reduces wind speed for protection of crop fields are called wind breaks.

Wind shelter belts: Rows of trees planted across the direction of wind for protection of crops against wind are called wind shelter belts.

Year-round tillage: Refers to tillage after harvest or as soon thereafter, as is possible, tilling with pre monsoon showers to finish seed bed work at optimum time is referred to as a year-round tillage.

Zing terracing: Practice to cut down the length of slope (3-10%) to harvest run off from upper area for the benefit of crops grown in lower side and to ensure adequate drainage during the periods of heavy down pours is called zing terracing.

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