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Crop residues and management practices: effects on soil quality, soil nitrogen dynamics, crop yield, and nitrogen recovery
K Kumar, KM Goh - Advances in agronomy, 1999 - Elsevier
This review reveals that crop residues of common cultivated crops are an important resource
not only as a source of significant quantities of nutrients for crop production but also affecting …
not only as a source of significant quantities of nutrients for crop production but also affecting …
Crop rotations for the 21st century
DL Karlen, GE Varvel, DG Bullock… - Advances in …, 1994 - experts.illinois.edu
Advantages and disadvantages of crop rotation have undoubtedly been debated for
thousands of years, as documented by historians (White, 1970b) who have stated that …
thousands of years, as documented by historians (White, 1970b) who have stated that …
Conservation agriculture, improving soil quality for sustainable production systems
N Verhulst, B Govaerts, E Verachtert… - Advances in soil …, 2010 - api.taylorfrancis.com
Human efforts to produce ever-greater amounts of food leave their mark on our environment.
Persistent use of conventional farming practices based on extensive tillage, especially when …
Persistent use of conventional farming practices based on extensive tillage, especially when …
A framework for evaluating physical and chemical indicators of soil quality
DL Karlen, DE Stott - Defining soil quality for a sustainable …, 1994 - Wiley Online Library
This chapter focuses on physical and chemical indicators of soil quality as related to soil
erosion by water. It illustrates a procedure that can be tailored to site‐specific situations and …
erosion by water. It illustrates a procedure that can be tailored to site‐specific situations and …
Crop residue effects on soil quality following 10-years of no-till corn
DL Karlen, NC Wollenhaupt, DC Erbach… - Soil and Tillage …, 1994 - Elsevier
Numerous biological, chemical, and physical indicators of soil quality have been suggested,
but few have been evaluated using data from long-term field studies. Our objective was to …
but few have been evaluated using data from long-term field studies. Our objective was to …
[PDF][PDF] Significance of soil organic matter to soil quality and health
Soil scientists have developed the concept of soil quality (SQ) to describe the fitness of soils
to perform particular ecosystem functions (Karlen et al., 2001). SQ is usually defined as the …
to perform particular ecosystem functions (Karlen et al., 2001). SQ is usually defined as the …
Long-term soil management effects on crop yields and soil quality in a dryland Alfisol
A long-term experiment was conducted with the objective of selecting the appropriate land
management treatments and to identify the key indicators of soil quality for dryland semi-arid …
management treatments and to identify the key indicators of soil quality for dryland semi-arid …
[KÖNYV][B] Soil organic matter in sustainable agriculture
Recognition of the importance of soil organic matter (SOM) in soil health and quality is a
major part of fostering a holistic, preventive approach to agricultural management. Students …
major part of fostering a holistic, preventive approach to agricultural management. Students …
[HTML][HTML] Uma visão sobre qualidade do solo
FM Vezzani, J Mielniczuk - Revista brasileira de ciência do solo, 2009 - SciELO Brasil
No início da década de1990, a comunidade científica, consciente da importância do solo
para a qualidade ambiental e para a sustentabilidade agrícola, iniciou a abordagem sobre …
para a qualidade ambiental e para a sustentabilidade agrícola, iniciou a abordagem sobre …
Changes in soil biological and biochemical characteristics in a long-term field trial on a sub-tropical inceptisol
Soil organic carbon (SOC), microbial biomass carbon (MBC), their ratio (MBC/SOC) which is
also known as microbial quotient, soil respiration, dehydrogenase and phosphatase …
also known as microbial quotient, soil respiration, dehydrogenase and phosphatase …