In our early experimental inquiries1 on the growth of swine we soon learned that restriction to any one grain and its protein concentrate or a mixture of grains and seed protein concentrates would lead to nutritional failure. Growth would cease and evidences of serious malnutrition appear. It was found that certain supplements to the grains must be made if physiological soundness was to be main...

Plant responses to physiological function disorders are called symptoms and they are caused principally by pathogens and nutritional deficiencies. Plant symptoms are commonly used as indicators of the health and nutrition status of plants. Nowadays, the most popular method to quantify plant symptoms is based on visual estimations, consisting on evaluations that raters give based on their observ...

On the experimental basis of Chuvash Research Agricultural Institute-a branch Federal State Budgetary Institution “Federal Center North-East named after N. V. Rudnitsky “, influence microbiological growth regulators on biometric indicators, yield and its structural elements seed plantings potatoes Chaika variety was studied. The use leaf nutrition preparations agrotechnology combine “Azur-Niva ...

The infl uence of cadmium (Cd) on physiological processes in wheat (Triticum aestivum L.) and maize (Zea mays L.) plants exposed to either optimal mineral nutrition or the absence of magnesium (Mg) as well as the accumulation of cadmium and magnesium in plant organs were studied using the method of water culture in a greenhouse. Cd treatment reduced shoot fresh mass more strongly in Mg-supplied...

In our early experimental inquiries1 on the growth of swine we soon learned that restriction to any one grain and its protein concentrate or a mixture of grains and seed protein concentrates would lead to nutritional failure. Growth would cease and evidences of serious malnutrition appear. It was found that certain supplements to the grains must be made if physiological soundness was to be main...

BACKGROUND: Vermicompost has many characteristics such as high porosity, ventilation and proper drainage, high moisture absorption and maintenance power, high uptake level for water and food stuffs, and its use in sustainable agriculture is very useful to improve soil porosity and thus more availability of nutrient elements required by plants. Manure plays an important role in ...

one of the main problems in crop production in iran is the difference between actual yield and attainable yield which is called yield gap. thus, identifying yield constraints and yield gap are important. to do this, a study was conducted in 95 farms gorgan of in five villages, during two years 2007 and 2008. in this study, all of the information about management operations, soil and crop charac...