Opposing effects of different soil organic matter fractions on crop yields
نویسندگان
چکیده
منابع مشابه
Opposing effects of different soil organic matter fractions on crop yields.
Soil organic matter is critical to sustainable agriculture because it provides nutrients to crops as it decomposes and increases nutrient- and water-holding capacity when built up. Fast- and slow-cycling fractions of soil organic matter can have different impacts on crop production because fast-cycling fractions rapidly release nutrients for short-term plant growth and slow-cycling fractions bi...
متن کاملSoil Carbon and Nitrogen Fractions and Crop Yields Affected by Residue Placement and Crop Types
Soil labile C and N fractions can change rapidly in response to management practices compared to non-labile fractions. High variability in soil properties in the field, however, results in nonresponse to management practices on these parameters. We evaluated the effects of residue placement (surface application [or simulated no-tillage] and incorporation into the soil [or simulated conventional...
متن کاملCrop residue management and fertilization effects on soil organic matter and associated biological properties.
Returning crop residue may result in nutrient reduction in soil in the first few years. A two-year field experiment was conducted to assess whether this negative effect is alleviated by improved crop residue management (CRM). Nine treatments (3 CRM and 3 N fertilizer rates) were used. The CRM treatments were (1) R0: 100 % of the N using mineral fertilizer with no crop residues return; (2) R: cr...
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ژورنال
عنوان ژورنال: Ecological Applications
سال: 2016
ISSN: 1051-0761,1939-5582
DOI: 10.1890/16-0024.1