Soil & Soil Layers
The process of eroding or being eroded by wind, water, or other natural agents.
What is erosion?
The supply of water to land or crops to help growth, typically by means of channels.
What is irrigation?
The process of clearing or thinning forests, either by humans or naturally, to convert them to other uses.
What is deforestation?
A substance or mixture of substances used to control, kill, or repel pests, which are organisms that are considered to be harmful or a nuisance.
What is pesticides?
A plant grown to cover soil and improve it as part of a crop rotation.
What is cover crops?
The organic component of soil, formed by the decomposition of leaves and other plant material by soil microorganisms.
What is humus?
An agricultural practice that involves building platforms, called terraces, into hillsides or mountains to create arable land.
What is terracing?
Economic development that is conducted without depletion of natural resources.
What is sustainable development?
A substance that is toxic to plants, used to destroy unwanted vegetation.
What is herbicides?
A sustainable agriculture practice that aims to protect the environment and Biodiversity, support animal welfare, and preserve natural resources.
What is organic farming?
A fertile soil of clay and sand containing humus.
What is loam?
The practice of planting different crops in a field or planting bed over time.
What is crop rotation?
The uncontrolled expansion of urban areas.
What is urban sprawl?
A substance used for killing insects.
What is insecticides?
The development of agricultural ecosystems intended to be sustainable and self-sufficient.
What is permaculture?
Surface soil usually including the rich upper layer in which plants have most of their roots and which the farmer turns over in plowing.
What is topsoil?
A farming technique that involves plowing or planting across a slope's elevation contour lines.
What is contour plowing?
The division of an area into smaller units based on environmental factors and characteristics.
What is zoning?
The control of a pest by the introduction of a natural enemy or predator.
What is biological control?
A farming practice that minimizes soil disturbance to protect water and soil resources.
What is conservation tillage?
The soil lying immediately under the surface soil.
What is subsoil?
The cultivation of a single crop in a given area.
What is monoculture?
The process of creating new land or restoring degraded land for various purposes.
What is land reclamation?
A science-based approach that uses a variety of techniques to manage pests while minimizing risks to people, property, and the environment.
What is integrated pest management?
Agriculture incorporating the cultivation and conservation of trees.
What is agroforestry?