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Winter Annual Cover Crops in a Virginia No-till Cotton Production System: I. Biomass Production, Ground Cover, and Nitrogen Assimilation
Virginia No-till Cotton Winter Annual Cover Crops
2008/5/13
Cotton (Gossypium hirsutum L.) may not provide sufficient surface residue to reduce erosion and protect the soil between crops. A winter annual cover crop might alleviate erosion during the time betwe...
Nitrogen assimilation and short term retention in a nutrient-rich tidal freshwater marsh – a whole ecosystem 15N enrichment study
Nitrogen assimilation short term retention nutrient-rich tidal freshwater marsh
2010/1/14
An intact tidal freshwater marsh system (3477 m2) was labelled by adding 15N-ammonium as a tracer to the flood water inundating the ecosystem. The appearance and retention of 15N-label in different ma...
Changes of nitrogen assimilation and intracellular fluid pH in plants of barley depending on bulk density of compacted soils
soil compaction soil bulk density nutrients nitrogen assimilation cellular fluid pH
2010/1/12
The penetration resistance of different arable soils is quite different depending on the Estonian area. We are briefly introducing the results of our research on soil compaction, penetration resistanc...