The perimeters of the Oued-Souf region are irrigated by salty water coming from phreatic and thus progressive salinization soil occurs. This study aims at a qualitative analysis evolution salinity in soils pivot irrigation for several years. For this, three plots were pivots each agricultural region. choice these 3 is justified number years their cultivation: plot 1 has been cultivated 2 (2016–...

according to the irrigation systems design standards, allowed pressure variation in lateral pipes is 20 percent. reasons for this rate selection, which since the 60's is performed, are not known. the increased changes in allowed pressure tubes to lateral pipes design, the increased sprinkling system required pressure and the increased nonuniform sprinkler distribution, so energy supply cos...

The article presents the results of research on effect sprinkling structural and aggregate composition soil its density. high quality irrigation is achieved with uniform distribution rain over area, acceptable intensity drop diameter impact force, at which plants structure are not damaged, puddles surface runoff formed. For complete absorption water into preservation low intensity, small drops ...

The article presents the results of monitoring availability and state production irrigation machinery equipment in Russia. Based on information analytical studies carried out, data structure fleet are presented, taking into account supplies Russian imported equipment. A complex engineering, technical, organizational, managerial measures has been developed, aimed at providing agricultural produc...

This paper concerns sprinklings into Minkowski space (Poisson processes). It proves that there exists no equivariant measurable map from sprinklings to spacetime directions (even locally). Therefore, if a discrete structure is associated to a sprinkling in an intrinsic manner, then the structure will not pick out a preferred frame, locally or globally. This implies that the discreteness of a sp...

Agricultural land reclamation is of great importance in the creation and life grass ecosystems. Even V.R. Williams his book "Meadow Farming" (1901) wrote about need for meadows by drainage irrigation, which a necessary condition obtaining high stable yields. In 1969, an irrigation system on area 85 hectares was put into operation at Forage Research Institute, 1970 — (closed drainage) 25 hectare...

In text classification, one key problem is its inherent dichotomy of polysemy and synonym; the other problem is the insufficient usage of abundant useful, but unlabeled text documents. Targeting on solving these problems, we incorporate a sprinkling Latent Semantic Indexing (LSI) with background knowledge for text classification. The motivation comes from: 1) LSI is a popular technique for info...

Imidacloprid (IM) is used to control the Asian Citrus Psyllid (ACP) and citrus leafminer (CLM), which are related to the spread of huanglongbing (HLB or citrus greening) and citrus canker diseases, respectively. In Florida citrus, imidacloprid is mainly soil-drenched around the trees for proper root uptake and translocation into plant canopy to impact ACP and CLM. The objective of this study wa...