Plant and livestock waste compost compared with inorganic fertilizer: nutrient contribution to soil
Abstract: The use of livestock and plant wastes, as sources of nutrients and organic material to the soil, is a viable alternative to chemical fertilizers, which eventually cause serious risks to agroecosystems. The present study was conducted in 2013 in a greenhouse at FACIATEC-UACH, Chihuahua, México. Four composts made with (a) cow manure, (b) hen manure, (c) sawdust and (d) maize stover were evaluated for their contribution of the soil macronutrients NO3 -, P=, K+, Ca++, Mg++ and Na+ and compared with urea as a synthetic fertilizer and a control without fertilizer. The experiment was based on a completely randomized design; statistical analysis included an analysis of variance using the statistical package SAS (Statistical Analysis System) version 9.3.1 and comparison of means with the Tukey procedure (a = 0.05). Results suggest that five of the compost treatments increased the concentration of NO3 -. Hen manure significantly outperformed cow manure in providing NO3 - and P=. Likewise, the sawdust-based compost significantly affected the content of NO3 -, outperforming the treatment based on maize stover. The concentration of Ca++ and Mg++ in soils resulting from the applied composts was lower than in the treatment with inorganic fertilizer, but that of Na+ was statistically higher than in the inorganic fertilizer treatment. This evidence suggests that the use of organic fertilizers, of either animal or plant origin, is a beneficial source of soil nutrients with high potential in sustainable agriculture.
| Main Authors: | , , , , |
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| Format: | Digital revista |
| Language: | English |
| Published: |
Sociedad Mexicana de la Ciencia del Suelo A.C.
2017
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| Online Access: | http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0187-57792017000400321 |
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| Summary: | Abstract: The use of livestock and plant wastes, as sources of nutrients and organic material to the soil, is a viable alternative to chemical fertilizers, which eventually cause serious risks to agroecosystems. The present study was conducted in 2013 in a greenhouse at FACIATEC-UACH, Chihuahua, México. Four composts made with (a) cow manure, (b) hen manure, (c) sawdust and (d) maize stover were evaluated for their contribution of the soil macronutrients NO3 -, P=, K+, Ca++, Mg++ and Na+ and compared with urea as a synthetic fertilizer and a control without fertilizer. The experiment was based on a completely randomized design; statistical analysis included an analysis of variance using the statistical package SAS (Statistical Analysis System) version 9.3.1 and comparison of means with the Tukey procedure (a = 0.05). Results suggest that five of the compost treatments increased the concentration of NO3 -. Hen manure significantly outperformed cow manure in providing NO3 - and P=. Likewise, the sawdust-based compost significantly affected the content of NO3 -, outperforming the treatment based on maize stover. The concentration of Ca++ and Mg++ in soils resulting from the applied composts was lower than in the treatment with inorganic fertilizer, but that of Na+ was statistically higher than in the inorganic fertilizer treatment. This evidence suggests that the use of organic fertilizers, of either animal or plant origin, is a beneficial source of soil nutrients with high potential in sustainable agriculture. |
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