soil-water-plant relationship

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• Soil life — or soil biota is a collective term for all the organisms living within the soil.OverviewIn a balanced soil, plants grow in an active and vibrant environment. The mineral content of the soil and its physical structure are important for their well… …   Wikipedia

• Water potential — is the potential energy of water per unit volume relative to pure water in reference conditions. Water potential quantifies the tendency of water to move from one area to another due to osmosis, gravity, mechanical pressure, or matrix effects… …   Wikipedia

• Water content — Soil composition by phase: s soil (dry), v void (pores filled with water or air), w water, a air. V is volume, M is mass. Water content or moisture content is the quantity of water contained in a material, such as soil (called soil moisture),… …   Wikipedia

• soil — soil1 soilless, adj. /soyl/, n. 1. the portion of the earth s surface consisting of disintegrated rock and humus. 2. a particular kind of earth: sandy soil. 3. the ground as producing vegetation or as cultivated for its crops: fertile soil. 4. a… …   Universalium

• Plant tissue test — The nutrient content of a plant can be assessed by testing a sample of tissue from that plant. These tests are important in agriculture since fertilizer application can be fine tuned if the plants nutrient status is known. Nitrogen most commonly… …   Wikipedia

• Soil conservation — is set of management strategies for prevention of soil being eroded from the earth’s surface or becoming chemically altered by overuse, salinization, acidification, or other chemical soil contamination. The principal approaches these strategies… …   Wikipedia

• Soil biodiversity — This discussion looks at the relationship of the soil to biodiversity, at some aspects of the soil that can be managed in relation to biodiversity, and raises some catchment management considerations.oil and biodiversityBiodiversity is “the… …   Wikipedia

• Plant — For other uses, see Plant (disambiguation). Plants Temporal range: Early Cambrian to recent, but see text, 520–0 Ma …   Wikipedia

• Soil food web — The soil food web is the community of organisms living all or part of their lives in the soil. It describes a complex living system in the soil and how it interacts with the environment, plants, and animals. Introduction Food webs describe the… …   Wikipedia

• Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis …   Wikipedia

• soil organism — ▪ biology  any organism inhabiting the soil during part or all of its life. Soil organisms, which range in size from microscopic cells that digest decaying organic material to small mammals that live primarily on other soil organisms, play an… …   Universalium