Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farming
Nitrogen resulting from the mineralization of organic fertilizers is of great importance in organic farming and depends greatly on the type of fertilizer used. Two tests (incubation and pot test) were conducted on poor organic matter soil to assess mineralization and N release from different organic...
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Format: | Article |
Language: | English |
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Elsevier
2022-05-01
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Series: | Journal of the Saudi Society of Agricultural Sciences |
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Online Access: | http://www.sciencedirect.com/science/article/pii/S1658077X21001259 |
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author | Ahmed Harraq Kenza Sadiki Mohamed Bourioug Rachid Bouabid |
author_facet | Ahmed Harraq Kenza Sadiki Mohamed Bourioug Rachid Bouabid |
author_sort | Ahmed Harraq |
collection | DOAJ |
description | Nitrogen resulting from the mineralization of organic fertilizers is of great importance in organic farming and depends greatly on the type of fertilizer used. Two tests (incubation and pot test) were conducted on poor organic matter soil to assess mineralization and N release from different organic sources. The objective of the first test was the study of the mineralization under incubation conditions of four organic fertilizers commonly used doses (worm-compost: 5 t ha−1; compost: 5 t ha−1; sheep manure: 30 t ha−1; fishmeal: 3,5 t ha−1), while that of the second test was the study in pot experiment of the effect of adding worm-compost (0, 5, 10 and 15 t ha−1) and fishmeal (0, 1.75 and 3.5 t ha−1) on N mineralization, and growth and yield of potato. During incubation, N mineralized from the four organic fertilizers tested differ significantly. The maximum N mineralization apparent rates (NMAR) were 62.3%, 38%, 30% and 18%, for fishmeal, compost, worm-compost and sheep manure, respectively. At the end of the incubation, an N immobilization was observed for worm-compost and compost and was attributed to a C/N increase. For the pots test, the use of fishmeal had a significant effect on leaf number, plant height, plant dry matter, aerial nitrogen uptake, tuber number and tuber yield, while the addition of worm-compost had an effect, on leaf number and tuber yield only. The combination of these two fertilizers (10 t ha−1 of worm-compost and 1.75 t ha−1 of fishmeal) generated at harvest a maximum of underground N uptake (2.96 g plant−1; 123 kg ha−1) and total N uptake (3.26 g plant−1; 136.5 kg ha−1). This was favored by NMAR of 71% and 64.3% for fishmeal and worm-compost, respectively, generating the optimal yield (554.4 g plant−1; 23.1 t ha−1). |
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spelling | doaj.art-1c0d1b3ea25b4488a2052c4eb029d6892022-12-22T00:19:13ZengElsevierJournal of the Saudi Society of Agricultural Sciences1658-077X2022-05-01214255266Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farmingAhmed Harraq0Kenza Sadiki1Mohamed Bourioug2Rachid Bouabid3Department of Agronomy and Plant Breeding, National School of Agriculture, km 10, Route Haj Kaddour, B.P. S/40, 50001 Meknes, Morocco; Corresponding author.Department of Agronomy and Plant Breeding, National School of Agriculture, km 10, Route Haj Kaddour, B.P. S/40, 50001 Meknes, Morocco; Regional Center for Agricultural Research, INRA, Tadla, MoroccoDepartment of Agronomy and Plant Breeding, National School of Agriculture, km 10, Route Haj Kaddour, B.P. S/40, 50001 Meknes, MoroccoDepartement of Soil Sciences and Agricultural Machinery, National School of Agriculture, km 10, Route Haj Kaddour, B.P. S/40, 50001 Meknes, MoroccoNitrogen resulting from the mineralization of organic fertilizers is of great importance in organic farming and depends greatly on the type of fertilizer used. Two tests (incubation and pot test) were conducted on poor organic matter soil to assess mineralization and N release from different organic sources. The objective of the first test was the study of the mineralization under incubation conditions of four organic fertilizers commonly used doses (worm-compost: 5 t ha−1; compost: 5 t ha−1; sheep manure: 30 t ha−1; fishmeal: 3,5 t ha−1), while that of the second test was the study in pot experiment of the effect of adding worm-compost (0, 5, 10 and 15 t ha−1) and fishmeal (0, 1.75 and 3.5 t ha−1) on N mineralization, and growth and yield of potato. During incubation, N mineralized from the four organic fertilizers tested differ significantly. The maximum N mineralization apparent rates (NMAR) were 62.3%, 38%, 30% and 18%, for fishmeal, compost, worm-compost and sheep manure, respectively. At the end of the incubation, an N immobilization was observed for worm-compost and compost and was attributed to a C/N increase. For the pots test, the use of fishmeal had a significant effect on leaf number, plant height, plant dry matter, aerial nitrogen uptake, tuber number and tuber yield, while the addition of worm-compost had an effect, on leaf number and tuber yield only. The combination of these two fertilizers (10 t ha−1 of worm-compost and 1.75 t ha−1 of fishmeal) generated at harvest a maximum of underground N uptake (2.96 g plant−1; 123 kg ha−1) and total N uptake (3.26 g plant−1; 136.5 kg ha−1). This was favored by NMAR of 71% and 64.3% for fishmeal and worm-compost, respectively, generating the optimal yield (554.4 g plant−1; 23.1 t ha−1).http://www.sciencedirect.com/science/article/pii/S1658077X21001259Solanum tuberosumOrganic farmingWorm-compostFishmealN mineralizationN uptake |
spellingShingle | Ahmed Harraq Kenza Sadiki Mohamed Bourioug Rachid Bouabid Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farming Journal of the Saudi Society of Agricultural Sciences Solanum tuberosum Organic farming Worm-compost Fishmeal N mineralization N uptake |
title | Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farming |
title_full | Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farming |
title_fullStr | Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farming |
title_full_unstemmed | Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farming |
title_short | Organic fertilizers mineralization and their effect on the potato 'Solanum tuberosum' performance in organic farming |
title_sort | organic fertilizers mineralization and their effect on the potato solanum tuberosum performance in organic farming |
topic | Solanum tuberosum Organic farming Worm-compost Fishmeal N mineralization N uptake |
url | http://www.sciencedirect.com/science/article/pii/S1658077X21001259 |
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