منابع مشابه
Alum-Treated Poultry Litter as a Fertilizer Source
Alum used for poultry houses is sold under the commercial name of “Al+ Clear” in either liquid or dry form. Alum should not be confused with other litter treatment chemicals such as “PLT” (poultry litter treatment), as PLT is comprised mainly of sodium bisulfate (NaHSO4). Although PLT is effective at reducing ammonia levels, pathogens in house, energy costs, and potentially increasing forage yi...
متن کاملNitrogen Response Index as a Guide to Fertilizer Management
The efficiency with which fertilizer-nitrogen (N) is transferred to grain-N in cereals is usually less than 50% and averages 33% worldwide. Two long-term N fertility experiments were evaluated to examine temporal changes in nitrogen use efficiency (NUE) and their causes. Averaged over 30-yr, non-irrigated winter wheat NUE was 49% at a 22.4 kg N ha 1 yr 1 rate and decreased to 34% at a rate of 1...
متن کاملUsing Scrap Tires in EAFs as a Substitute for Carbon
EAF plants normally consume coal and coke as reactants, alloying elements, or fuel. The price of these materials varies from € 0.20-0.35/kg. This is while nearly 10 million pieces of tires are annually discarded in Iran. The present study shows that scrap tires can be used as a substitute for coal and coke in EAF plants. Thirteen grades of steel including low, medium, and high carbon steels as ...
متن کاملA Variable-Rate Fertilizer Control System for Disc Fertilizer Spreaders
Fertilizer application control in reason is the key technology to improve operation quality, reduce fertilizer pollution, and cut down costs of production. A control system of variable rate fertilizer is developed based on microcontroller chip in the paper. The system can automatically control flow dosage by adjusting feed gate opening size and changing hydraulic motor speed of fertilizer conve...
متن کاملThe Effect of Oil Meal as a Micronutrient Fertilizer in Saline and Non-Saline Soils
A significant amount of the oil meal is produced annually in the oil industry. Oil meal addition into the soil can improve the soil organic matter and micronutrients concentration. This study was conducted to investigate the effect of olive, sesame and black cumin meal (0, 2 and 5 g 100g-1 soil) on the soil Cu, Zn and Fe concentration in saline and non-saline soils by a greenhouse experiment. T...
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ژورنال
عنوان ژورنال: Botanical Gazette
سال: 1910
ISSN: 0006-8071
DOI: 10.1086/330397