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Endogone Spores in Cultivated Soils
Nature, 1962USING nematological methods of wet sieving and decanting with agricultural soils in Illinois, Gerdemann1,2 extracted two types of large one-celled spores which gave endotrophic mycorrhiza of the phycornycetous type in inoculated plants. The larger of these spores, 183–812µ diam., produced arbuscules but not vesicles in infected roots.
J. W. GERDEMANN, T. H. NICOLSON
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2019
Abstract Upon the cancellation of the China portion of the proposed project, the organizers of Bernstein’s Asia tour had to quickly come up with an alternative plan. The city of Sapporo in Japan’s northern island of Hokkaido emerged as a possible site, and the organizers decided to create a music festival in which Bernstein would work ...
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Abstract Upon the cancellation of the China portion of the proposed project, the organizers of Bernstein’s Asia tour had to quickly come up with an alternative plan. The city of Sapporo in Japan’s northern island of Hokkaido emerged as a possible site, and the organizers decided to create a music festival in which Bernstein would work ...
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Characteristics of greenhouse tomatoes – substrate cultivation vs soil cultivation
Revista da UI_IPSantarém - Unidade de Investigação do Instituto Politécnico de Santarém, 2020The Portuguese Oeste region is responsible for the production of approximately 100,000 tons of tomatoes per year in greenhouse. The importance of the culture for the region is undeniable and the investment in the sector is essential. Soilless systems have been gaining increasing importance in a crop that is still predominantly conducted in soil, due to
Saraiva, Raquel +5 more
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Cultivation and the soil biomass
Soil Biology and Biochemistry, 1980Abstract The fumigation-respirometric determination of soil biomass was modified to assess the effects of cultivation on the biomass in the upper 5 cm of intact soil samples. We found the method suitable for comparative studies, but not for providing an absolute measure.
J.M. Lynch, Lynda M. Panting
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ORGANIC POLYMERS AND SOIL SEALING IN CULTIVATED SOILS
Soil Science, 1994The beating action of rain or sprinkler drops causes the breakdown of aggregates and clay dispersion, which subsequently leads to seal formation. Seal formation reduces infiltration rate and generates high levels of runoff.
I. SHAINBERG, G. J. LEVY
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Site-Specific Soil Cultivation
2013Site-specific soil cultivation has several objectives. In primary cultivation, the main objective is the control of the working depth. Signals for this control can be derived from the clay content, the organic matter content, the hydromorphic properties and the slope of the soil. An algorithm can combine these signals to control the working depth.
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Physical conditions in cultivated soils
Journal of the Science of Food and Agriculture, 1962AbstractAn account is given of physical conditions that have been found in the profiles of cultivated soils in the eastern region. The origin of some of them is discussed. Many are of pedological origin, others result from cultivation. The origin and causes of adverse physical conditions, e.g., slaked structures, drainage patterns and pans, should be ...
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Earthworm ecology in cultivated soils
1983Most cultivated soils in temperate regions support earthworms. Population densities vary widely and the species present differ in relation to climatic conditions, soil type and cropping. Cultivation by mechanical disturbance completely changes the environment in which earthwormslive, destroying the habitat and changing the soil temperature and moisture
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