Humic substances or humus are complex molecules of black or dark brown color, with high molecular weight, colloidal and hydrophilic properties, ionic adsorption and desorption capacity, release of nutrients in the medium and long term. These humic substances are classified based on the solubility of their components in solutions of different pH. This results in …
Soils often have poor oxygen levels on farmland. Poor performance in the field and reduced plant yield. Therefore, to aid cultivation in soils with optimal water use, the application of hydrogen peroxide (H2O2) is efficient in imparting oxygenated environments. Plant roots like plants obtain oxygen from the gaseous phase of the soil and from dissolved …
Sodium is an abundant element in nature, so abundant that it is part of the “minerals” of seawater and we have daily contact with it in table salt, which is a compound called Sodium Chloride. In agriculture, many elements are necessary for the development of plants, around 16 are essential, between macro and micronutrients. Sodium …
The soil is a very fragile natural resource, contrary to what we might think, it is affected by many factors. One of the great disadvantages that the use of land for agriculture has is its slow, very slow creation and almost impossible regeneration; Soil has been formed throughout the Earth’s history from bedrock and weathering …
The following table shows the damage caused by salinity and sodicity in different areas of agriculture: Salinity Sodicity Environmental Effects: Salinity processes due to the water table can take place in arid and semi-arid environments (imbalance in the hydric regime). Salts generally tend to accumulate in bottom topographical positions with poor drainage where they have …
Saline and sodic soils are the result of the accumulation of soluble salts and exchangeable sodium. For these problems to occur, there must be a generally constant rate of accumulation of salts and sodium; phenomenon that usually occurs in lowlands, where there is accumulation of runoff and poor drainage at one time of the year …
Saline and sodic soils are the result of the accumulation of soluble salts and exchangeable sodium. For these problems to occur, there must be a generally constant rate of accumulation of salts and sodium; phenomenon that usually occurs in lowlands, where there is accumulation of runoff and poor drainage at one time of the year …
There is a growing need in the world to produce more food for the growing population; this, of course, is not an easy task since we are facing a trend of scarcity of natural resources available to carry out this work, from lack of water, pollution, climate change, the frequent scourge of pests and diseases …
Calcium is an element that is absorbed in the form of divalent Calcium cation (Ca2+) and is abundant in the soil, however, at certain stages of crop development, plants may express symptoms of deficiency of said element. Calcium is absorbed through the tissue of “tender” roots. This is one of the main reasons for calcium …
Sodic saline soils It is important to differentiate between saline and sodic soils. Saline soils are those that contain significant amounts of salts more soluble than gypsum, which interferes with the growth of most sensitive crops and plants. Salinity is measured by Electrical Conductivity (EC). In contrast, sodium soils originate when the monovalent sodium ion …
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