Factors limiting microbial activities in soil
نویسندگان
چکیده
منابع مشابه
Rapid method of determining factors limiting bacterial growth in soil.
A technique to determine which nutrients limit bacterial growth in soil was developed. The method was based on measuring the thymidine incorporation rate of bacteria after the addition of C, N, and P in different combinations to soil samples. First, the thymidine incorporation method was tested in two different soils: an agricultural soil and a forest humus soil. Carbon (as glucose) was found t...
متن کاملSome Observathjns on Microbial Activities in Two Sugarcane Soil Groups
Introduction The nature of the processes reported here should not be regarded as occurring independently of other' reactions for the soil has a universe of its own in which a great number of different reactions are occurring simultaneously with one another. The type of investigations conducted below are thus only a part of a great number which can and do occur, and have 'been investigated in th...
متن کاملEffect of four organophosphorus insecticides on microbial activities in soil.
Laboratory tests were conducted with four organophosphorus insecticides, Bay 37289 (O-ethyl O-2,4,5-trichlorophenyl ethylphosphonothioate), diazinon [O,O-diethyl O-(2-isopropyl-4-methyl-6-pyrimidinyl) phosphorothioate], Dursban (O,O-diethyl O-3,5,6-trichloro-2-pyridyl phosphorothioate), and Zinophos (O,O-diethyl O-2-pyrazinyl phosphorothioate), applied to a sandy loam at rates of 10 and 100 mug...
متن کاملImpact of indigenous microorganisms on soil microbial and enzyme activities
The effect of Indigenous microorganisms (IMO’s) on the native soil was investigated in the present study. Supplementation of IMO’s suspension to the soil alters the physico-chemical, biological and enzyme properties of the soil. These alternations include decreases in P from 7.2 to 6.8, increase in electrical conductivity 0.36 to 1.21 (μmohs/cm), water holding capacity 0.36 to 2.2ml/g of soil o...
متن کاملTHE IMPORTANCE OF SOIL MICROBIAL ACTIVITIES Microbiology of Turf grass Soil
Turfgrass soils vary considerably in physical and chemical composition. However, regardless of their properties, most contain a vast array of living organisms, ranging from larger creatures such as earthworms and insects, to microscopic invertebrates, bacteria, fungi, actinomycetes, yeasts, algae and protozoa. All of these organisms affect turfgrass health in important ways. However, perhaps th...
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ژورنال
عنوان ژورنال: Archiv f�r Mikrobiologie
سال: 1961
ISSN: 0302-8933,1432-072X
DOI: 10.1007/bf00422051