Fertigation is using your irrigator to fertilise the plants and soils as you water, which is the most efficient and advanced practice of fertilization. Aid of pressure system (or natural divide terrain), the soluble solid or liquid fertilizer, according to the soil nutrient content and crop fertilizer regularity and characteristics of species, with the fat of with irrigation water, through a controlled water supply pipeline system, supplying, the compatibility, water through the pipe and drop head form drip irrigation, uniform, regular, quantitative, infiltration area crop root growth and development, make the main root soil always stay loose and appropriate moisture content, at the same time according to different crop fertilizer characteristics, environment and soil nutrient content in soil; Crops in different growth phase water requirement, the different development stages of the fertilizer rule is the demand of design, the water and nutrient timing quantitative, provided directly in proportion to the crops. Greenhouse Drip Irrigation System Greenhouse Drip Irrigation System,Greenhouse Micro Irrigation System ,Plant Drip Irrigation JIANGSU SKYPLAN GREENHOUSE TECHNOLOGY CO.,LTD , http://www.spgreenhouse.com
New discovery of ant gene research
A study by Sara Helms Cahan and his colleagues found that the evolution of gene sharing between two ants makes it necessary for groups to depend on each other to survive. This finding shows that genetic exchange between species can lead to highly interdependent systems between biological groups. Before the advent of modern humans, many social behaviors such as division of labor, agriculture, and even slavery have emerged in the ant population. Recent studies have found that the two queens of the harvested ants will mate with other male ants to produce new worker ants. Research by Sara Helms Cahan and colleagues shows that these two ants are unable to produce pure-bred worker ants and therefore must rely on each other to survive. Female ants are usually two forms of fertility queens and infertile worker ants, which determine the form during development and are more affected by environmental factors rather than through genes. However, in the two harvested ant populations in southern New Mexico, the genes of the queen and the worker ants in the same settlement are extremely different; only the queens maintain the gene-specificity of the species, and the workers' genotypes are obtained by crossing two ants. At present, it is still not known what kind of benefits Ants can obtain, but researchers believe that this approach will help ants generate new features to maintain survival advantages, tolerance to the environment, and disease resistance. Researchers tried to stop the queen from mating with other kinds of ants and found that the entire population would decline. This finding shows that crosses between different species of worker ants have made these ant species dependent on each other to survive.