On the Soil Acidity of Cultivated land, Miyagi Prefecture
نویسندگان
چکیده
منابع مشابه
Research on Throwing Soil Regular Pattern of Reversal Cultivated Land and Fertilization Seeder
The distribution of soil particles and planting tube space position affects reversal cultivated land and fertilization seeder seeding performance. Through the establishment of ratary tiller system coordinate system; Firstly giving the analysis of soil grain not heel cover shell collision and the first meeting with cover shell collisions motion situation, through Matlab found the first meeting w...
متن کاملManaging Soil Acidity
The minerals from which a soil is formed partly determine whether it is acid or alkaline. Soils formed from acidic rocks have a lower pH than those formed from basic rocks or alkaline parent material. Rainfall affects soil acidity development by leaching basic elements such as calcium, magnesium, potassium, and sodium from the soil profile, leaving the acidic elements: hydrogen, aluminum and ma...
متن کاملsurvey on the rule of the due & hindering relying on the sheikh ansaris ideas
قاعده مقتضی و مانع در متون فقهی کم و بیش مستند احکام قرار گرفته و مورد مناقشه فقهاء و اصولیین می باشد و مشهور معتقند مقتضی و مانع، قاعده نیست بلکه یکی از مسائل ذیل استصحاب است لذا نگارنده بر آن شد تا پیرامون این قاعده پژوهش جامعی انجام دهد. به عقیده ما مقتضی دارای حیثیت مستقلی است و هر گاه می گوییم مقتضی احراز شد یعنی با ماهیت مستقل خودش محرز گشته و قطعا اقتضاء خود را خواهد داشت مانند نکاح که ...
15 صفحه اولSoil Acidity and Liming
Soil pH, soil acidity, and their effects on plants The pH scale, ranging from 0 to 14, is used to indicate acidity and alkalinity. pH is a measure of the concentration of hydrogen ions (symbol = H) in the water contained in the soil. A pH of 7.0 is neutral, values below 7 are acidic, and those above 7 are alkaline (basic). The lower the pH, the more acid the soil. Each unit pH drop indicates te...
متن کاملThe presence of high and low incidence districts of Australia antigen in Miyagi prefecture.
ISHIDA, N., UMENAI, T., SHIRACHI, R., SHIRATORI, T. and KONNO, J. The Presence of High and Low Incidence Districts of Australia Antigen in Miyagi Prefecture. Tohoku J. exp. Med., 1972, 107 (2), 201-202 Age distribution of per cent positives of Australia (Au) antigen in several counties of Miyagi Prefecture was compared. Although the average incidence throughout the Prefecture was 1.7%, the high...
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ژورنال
عنوان ژورنال: Annals of The Tohoku Geographycal Asocciation
سال: 1959
ISSN: 0387-2777,1884-1244
DOI: 10.5190/tga1948.11.3-4_49