Is Green Manure from Riparian Buffer Strip Species an Effective Nutrient Source for Crops?
| Autor: | Casey M. Ryan, Jenni A. Stockan, Cathy Hawes, Geoffrey R. Squire, Lawrie K. Brown, Timothy S. George, Marc Stutter, Charalampos Kazas |
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| Rok vydání: | 2019 |
| Předmět: |
Crops
Agricultural Environmental Engineering Riparian buffer Nitrogen Biomass Buffer strip 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Soil Green manure Nutrient Fertilizers Waste Management and Disposal 0105 earth and related environmental sciences Water Science and Technology Pollutant geography geography.geographical_feature_category business.industry food and beverages Agriculture Phosphorus 04 agricultural and veterinary sciences Pollution Manure Biodegradation Environmental Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Environmental science business |
| Zdroj: | Brown, L K, Kazas, C, Stockan, J, Hawes, C, Stutter, M, Ryan, C M, Squire, G R & George, T S 2018, ' Is Green Manure from Riparian Buffer Strip Species an Effective Nutrient Source for Crops? ', Journal of Environmental Quality, vol. 0, no. 0, pp. 0 . https://doi.org/10.2134/jeq2017.11.0422 |
| ISSN: | 0047-2425 |
| DOI: | 10.2134/jeq2017.11.0422 |
| Popis: | Agriculture needs to reduce inputs of inorganic fertilizers and close the loop on nutrients that can otherwise become environmental pollutants. This can be achieved by promoting recycling of nutrients within the agricultural landscape. We investigated the extent to which plants found in riparian buffer zones have the potential to provide nutrients to crops as a green manure, through plant growth and decomposition studies. Under controlled conditions, species typical of Scottish riparian buffer strips were tested for their ability to accumulate biomass and nutrients in tissue under N- and P-replete conditions and whether this ability enhanced the utility of the resulting green manure in promoting crop growth. In this proof-of-concept study, we found that green manure derived from riparian buffer strips did not effectively replace inorganic fertilizer and only had a significant positive effect on growth, yield, and nutrient accumulation in barley (Hordeum vulgare L.) when it was integrated with the addition of inorganic fertilizers. The individual species tested varied in the amount of P they accumulated in their tissue (1.38–52.73 mg P plant−1), but individual species did not differ in their ability to promote yield when used as a green manure. Our results indicate that selecting certain species in the buffer strip on the basis of their nutrient accumulating abilities is not an effective way to increase the utility of buffer strip green manure as a nutrient source for crops. |
| Databáze: | OpenAIRE |
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