Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production
ABSTRACT Soil fertility is the key to agricultural production. The spatial correlation and location of nutrients may significantly affect the yields. The objective of this work was to evaluate the variability and spatial correlation of iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), and organic m...
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Universidade Federal de Campina Grande
2019-12-01
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| Series: | Revista Brasileira de Engenharia Agrícola e Ambiental |
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| _version_ | 1849700251374452736 |
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| author | Jaqueline O. Paris Ivoney Gontijo Fábio L. Partelli Alexandro G. Facco |
| author_facet | Jaqueline O. Paris Ivoney Gontijo Fábio L. Partelli Alexandro G. Facco |
| author_sort | Jaqueline O. Paris |
| collection | DOAJ |
| description | ABSTRACT Soil fertility is the key to agricultural production. The spatial correlation and location of nutrients may significantly affect the yields. The objective of this work was to evaluate the variability and spatial correlation of iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), and organic matter (OM) with macadamia nut yield. The study was conducted in an Oxisol cultivated for 20 years with macadamia nut in São Mateus, state of Espírito Santo, Brazil. A 100 point grid was used comprising an area of 144 × 140 m with a minimum distance between points of 5 m, in which a single composite soil sample was collected from 0-0.20 m layer for chemical analysis of Fe, Cu, Mn, Zn and OM. Nuts under the canopy’s projection were harvested from February to June, 2015. The data were evaluated by geostatistical analysis using semivariograms, and kriging was used to map spatial distributions of nutrients and nut yield. All evaluated attributes showed strong or moderate spatial dependence structure. The OM was correlated positively with micronutrients, but only Zn was positively correlated with nut yield. Crossed semivariograms adequately explained the maps of Zn and Mn; and Fe showed opposite tendency for macadamia nut yield. |
| format | Article |
| id | doaj-art-6bb359febdb747689770eac059274ea9 |
| institution | DOAJ |
| issn | 1807-1929 |
| language | English |
| publishDate | 2019-12-01 |
| publisher | Universidade Federal de Campina Grande |
| record_format | Article |
| series | Revista Brasileira de Engenharia Agrícola e Ambiental |
| spelling | doaj-art-6bb359febdb747689770eac059274ea92025-08-20T03:18:20ZengUniversidade Federal de Campina GrandeRevista Brasileira de Engenharia Agrícola e Ambiental1807-19292019-12-01241313610.1590/1807-1929/agriambi.v24n1p31-36Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut productionJaqueline O. Parishttps://orcid.org/0000-0002-8801-8146Ivoney Gontijohttps://orcid.org/0000-0002-4251-4689Fábio L. Partellihttps://orcid.org/0000-0002-8830-0846Alexandro G. Faccohttps://orcid.org/0000-0001-5496-1622ABSTRACT Soil fertility is the key to agricultural production. The spatial correlation and location of nutrients may significantly affect the yields. The objective of this work was to evaluate the variability and spatial correlation of iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), and organic matter (OM) with macadamia nut yield. The study was conducted in an Oxisol cultivated for 20 years with macadamia nut in São Mateus, state of Espírito Santo, Brazil. A 100 point grid was used comprising an area of 144 × 140 m with a minimum distance between points of 5 m, in which a single composite soil sample was collected from 0-0.20 m layer for chemical analysis of Fe, Cu, Mn, Zn and OM. Nuts under the canopy’s projection were harvested from February to June, 2015. The data were evaluated by geostatistical analysis using semivariograms, and kriging was used to map spatial distributions of nutrients and nut yield. All evaluated attributes showed strong or moderate spatial dependence structure. The OM was correlated positively with micronutrients, but only Zn was positively correlated with nut yield. Crossed semivariograms adequately explained the maps of Zn and Mn; and Fe showed opposite tendency for macadamia nut yield.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000100031&tlng=enMacadamia integrifoliaspatial variabilitygeostatisticsplant nutrition |
| spellingShingle | Jaqueline O. Paris Ivoney Gontijo Fábio L. Partelli Alexandro G. Facco Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production Revista Brasileira de Engenharia Agrícola e Ambiental Macadamia integrifolia spatial variability geostatistics plant nutrition |
| title | Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production |
| title_full | Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production |
| title_fullStr | Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production |
| title_full_unstemmed | Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production |
| title_short | Variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production |
| title_sort | variability and spatial correlation of soil micronutrients and organic matter with macadamia nut production |
| topic | Macadamia integrifolia spatial variability geostatistics plant nutrition |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662020000100031&tlng=en |
| work_keys_str_mv | AT jaquelineoparis variabilityandspatialcorrelationofsoilmicronutrientsandorganicmatterwithmacadamianutproduction AT ivoneygontijo variabilityandspatialcorrelationofsoilmicronutrientsandorganicmatterwithmacadamianutproduction AT fabiolpartelli variabilityandspatialcorrelationofsoilmicronutrientsandorganicmatterwithmacadamianutproduction AT alexandrogfacco variabilityandspatialcorrelationofsoilmicronutrientsandorganicmatterwithmacadamianutproduction |