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- W67214408 abstract "Microbial biomass, numbers, activity and diversity were measured in tropical agricultural soil in Tanzania throughout the growth season of maize (Zea maize). Four farmers each had three plots that were subject to three different methods of treatment to improve soil fertility: 1) Removal of plant residues and other organic material, tilling to 10 cm, and adding nitrogen (60 kg pr ha) and phosphorus (40 kg pr ha). 2) Tilling organic plant material, such as maize residues, 10 cm into the soil, without adding fertilizer. 3) Collecting residues in heaps and burning them. No added fertilizer and no tillage. During the growth season, the total biomass and activity of the microflora increased as a response to higher soil water levels due to the rainy season. The microflora was also investigated to see whether there was any difference between the four farmers’ soil types, and it was found that the total microbial biomass were in correlation with the organic carbon content in each of the four soil types. It was also found that the ratio between fungi, actinomycetes and bacteria was the same for all the four soils. The measurement of microbial activity by soil respiration was influenced by the different soil types’ texture. When comparing the three different methods of treatment, it was found that burning organic material on the soil without tilling gave the greatest numbers and biomass. The combination of removing residues, tilling and fertilizing with inorganic fertilizer decreased the soil microflora most. And tilling and incorporating plant residues gave numbers and biomass between the two extremes." @default.
- W67214408 created "2016-06-24" @default.
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- W67214408 date "2005-02-01" @default.
- W67214408 modified "2023-09-27" @default.
- W67214408 title "Measurement of microbial numbers, activity, biomass and diversity as a response to different methods of treatment of Tanzanian soil" @default.
- W67214408 hasPublicationYear "2005" @default.
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