A comparative test was undertaken in order to identify the potential of existing mathematical models, including the rice water quality (RICEWQ) 1.6.4v model, the pesticide concentration in paddy field (PCPF-1) model and the surface water and groundwater (SWAGW) model, for calculating pesticide dissipation and exposure in rice paddies in Europe. Previous versions of RICEWQ and PCPF-1 models had ...

The broad correspondence between the sclerophyllous shrub form and the climate in mediterranean-type ecosystems indicates a climatic control over the vegetation particularly with respect to the summer drought, but all five regions are noted for nutrient deficiencies, especially Australia and South Africa. As studies of these ecosystems are completed, divergences related to the control of commun...

Building construction is influenced by the existing soil conditions. Clay one of soils that have deficiencies, both in bearing strength and nature itself, so stabilization needed. Soil an attempt to improve properties. The purpose this study was analyze physical mechanical properties effect wood ash, lime, styrofoam on CBR value. samples were located Tumbang Liting Village, Kasongan Lama Kating...

The basic physiology of leucocyte emigration from the intravascular space into the tissues is now known to be dependent on a class of cell surface molecules that have come to be known as adhesion molecules. Many cell-cell interactions are dependent on adhesion and signal transduction via the various adhesion molecules, particularly the integrins. The study of the functions of these molecules ha...

on this site led to the discovery of K deficiency in cotton, which had been referred to earlier as “cotton rust” (Atkinson, 1891, 1892). Today, the experiment is a 3-year rotation of: 1) cotton followed by crimson clover, 2) corn harvested for grain and followed by winter wheat, and 3) soybeans double-cropped after the small grain is harvested. The soil is a Marvyn loamy sand (fine-loamy, silic...

Sustainable agriculture, which is characterized by farming profitably while minimizing damage to the environment, is not easy to practice. “Conventional” agriculture in the USA is commonly considered to involve practices that have potential to damage the environment. These include tilling the soil excessively, overapplying readily soluble inorganic fertilizers (“chemical fertilizers”), and over...

Cropping systems models have evolved over the last four decades in response to the demand for modeling to address more complex questions, including issues on sustainable production, climate change, and environmental impacts. Early models, which were used primarily for yield gap analysis, have increased in complexity to include not only nutrient and water deficiencies, but also pest and disease ...

Micronutrient malnutrition is a major health problem in China. According to a national nutritional survey, approximately 24% of all Chinese children suffer from a serious deficiency of iron (Fe) (anemia), while over 50% show a sub-clinical level of zinc (Zn) deficiency. More than 374 million people in China suffer from goiter disease, which is related to iodine (I) deficiency, and approximately...

Over-irrigation without considering the soil property reduce product yield and variety in many agricultural areas. In this study, it is aimed to produce a more useful, user-friendly 3D moisture detection system by using wireless communication across The deficiencies of land can be eliminated terms irrigation, variety, yield. information obtained from transferred database farmers use cultivate c...

Research on esophageal cancer in the People's Republic of China is reviewed. Massive epidemiological studies revealed the prevalence of this disease in China, especially in the Taihang Mountain range areas in the north. Gullet cancer in chickens was also observed in the high-incidence area of Linxian in Henan, suggesting the presence of cancer-causing substances in the environment. Research on ...