Biology & Soil Science

https://ezgif.com/maker/ezgif-1-77716931-gif Agricultura de Precisão

https://ezgif.com/maker/ezgif-1-9fe89976-gif Importância dos Solos

https://ezgif.com/cut/ezgif-1-aaa2fd2fefd1.gif Solo e Meio Ambiente

Fundamentals of the No-tillage System No-tillage is a technique of conservationist cultivation in which planting is carried out without the steps of conventional tillage and harrowing. In this technique, it is necessary to keep the soil always covered by developing plants and by plant residues. This cover is intended to protect the soil from the direct impact of raindrops, surface runoff and water and wind erosion. No-tillage can be considered as a modality of minimum cultivation, since soil preparation is limited to the sowing furrow, sowing, fertilization and, eventually, herbicide application in a single operation. No-tillage, defined as the process of sowing in unroot soil, in which the seed is placed in grooves or pits, with sufficient width and depth for adequate cover and contact of the seeds with the soil, is understood as a system with the Following grounds: Elimination / reduction of soil preparation operations; Use of herbicides to control weeds; Training ...

Soil & Biodiversity Soil biodiversity is the variety of life that exists within the soil, including bacteria, fungi, earthworms and termites. A teaspoon of topsoil typically contains a vast range of different species and up to 6 billion microorganisms.The maintenance of soil biodiversity is essential to both the environment and to agricultural industries. 1).Soil is by far the most biologically diverse material on Earth. 2).Soil contains a large variety of organisms which interact and contribute to many global cycles, including the carbon and nitrogen cycles. 3).Soil provides vital habitats for micro-organisms such as bacteria, fungi, as well as insects and other organisms. Importance The diversity of organisms living within soils is critical to all earth ecosystems because soil organisms: are essential for the cycling of ecosystem nutrients are necessary for plant growth and plant nutrition improve the entry of water into soil and its storage...

Weathering is the process where rock    is dissolved, worn away or broken down into smaller and smaller pieces. There are mechanical, chemical and organic weathering processes.  Organic weathering happens when plants break up rocks with their growing roots or plant acids help dissolve rock.

Soil Horizons... A soil horizon is a layer of soil parallel to the earth’s surface. It has a unique set of physical, chemical, and biological properties. The properties of soil horizons, such as texture, color, and structure, are the results of the soil-forming processes, and they distinguish each horizon from other horizons above and below it. When soil horizons are studied, the student needs to know how much of the soil must be observed or studied. The smallest volume that can be called “soil” is a pedon (peh-don). A pedon is three dimensional and large enough to permit study of all horizons. Its area ranges from 10 to 100 square feet (1–10 square meters), depending on the variability of the soil.