The productivity of coconut in Guerrero, Mexico has decreased substantially. The experts recommended a diagnosis of the soil fertility before launching a sound reforestation program. The introduction of Green Dwarf Coconut (GDC) due to its high productivity was suggested; however, nitrogen (N) was of higher interest since GDC is a highly demanding material. In this work, the contents, in parts per million (ppm), of nitrogen (N) as nitrate (N-NO3) as well as its chemical variability (Coefficient of Variation) and spatial distribution (Kriging method) was determined at 0 - 30 and 30 - 60 cm deep in the soil. Two GDC commercial plantations were selected and the study was complemented with foliar N (%) analysis. Two farms: Las Tunas (LT) of 9 hectares and Aguas Blancas (AB) of 5 hectares were sampled taking one point per hectare at both depths, one meter from the trunk. In LT, the overall average of N-NO3, at 0 - 30 cm, was rated as MEDIUM and at 30 - 60 cm as LOW. On the other hand, in AB the general average of N-NO3 was graded as LOW at both depths. The two farms showed important chemical heterogeneity as indicated by the HIGH CV’s (%). Regardless of the specific values of N, in LT the spatial distribution of N seems to be the same between both depths with an approximate area of 20% classified as LOW (14 - 18 ppm) and 80% as MEDIUM 20 - 28 (ppm). On the other hand, in AB the spatial distribution was contrasting between depths. At 0 - 30 cm deep, an approximate area of 15% was rated as LOW and 75% as MEDIUM whilst at 30 - 60 cm deep, 70% was LOW, 28% MEDIUM and just 2% HIGH. Although both farms showed LOW foliar N contents, as compared to the critical range of 1.8% - 2.0%, AB was the one reporting the lower N value of 1.16% vs. LT with 1.44%, both in deficiency levels.
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Ramírez-Silva, J. H. , Cortazar-Rios, M. , Ramírez-Jaramillo, G. , Oropeza-Salín, C. M. and Rondón-Rivera, D. N. (2022). Heterogeneity and Spatial Distribution of Inorganic Nitrogen as Nitrate (N-NO3) in Two Soils Dedicated to Green Dwarf Coconut in Guerrero, Mexico. Open Access Library Journal, 9, e9367. doi: http://dx.doi.org/10.4236/oalib.1109367.
Fierro, L.M. (2018) Estrategias de intervención del estado en la organización de la producción de coco en Guerrero. In: Teoría, impactos externos y políticas públicas para el desarrollo regional, Universidad Nacional Autónoma de México y Asociación Mexicana de Ciencias para el Desarrollo Regional A.C, Coeditores, México, 781-803.
http://ru.iiec.unam.mx/3767
Santos, A.L., Monnerat, P.H. and Carvalho, A.J.C. (2004) Estabelecimento de normas DRIS para o diagnóstico nutricional do coqueiro-anão verde na região norte fluminense. Revista Brasileira de Fruticultura, 26, 330-334.
Holanda, J.S., Ferreira, N.M., Silva, R.A., Chagas, M.C.M., Sobral, L.F. and Gheyi, H.R. (2007) Tecnologias para produção intensiva de coco-anão-verde. Natal: EMPARN. 40 p. Boletim de Pesquisa 34.
http://adcon.rn.gov.br/ACERVO/EMPARN/DOC/DOC000000000000575.PDF
Siqueira, E.R., Ribeiro, F.L. and Aragão, W.M. (1998) Melhoramento genético do coqueiro. In: Ferreira, J.M.S., Warwick, D.R.N. and Siqueira, L.A., Eds., A cultura do coqueiro no Brasil, 2nd Edition, Embrapa-SPI, Brasilia, Embrapa-CPATC, Aracaju, 73-98.
Srinivasa, R.D.V., Biddappa, C.C., Gopalasundaram, P., Upadhyay, A.K. and Zavier, T.V. (1999) Long Term Effect of Graded Fertilizer Levels on the Productivity of WCT Coconut in Littoral Sandy Soil of Kasaragod. Journal of Plantation Crops, 27, 201-206.
Ramírez Silva, J.H., Aguilar Duarte, Y., Ramírez Jaramillo, G., Oropeza Salín, C.M. and Cano González, A. (2017) Macro y micronutrientes en suelos dedicados a cocotero en el estado de Guerrero, México. Memoria de la XXX Semana Internacional de la Agronomía, FAZ-UJED, Venecia, Septiembre 2017, 767-772.
García, E. (2004) Modificaciones al sistema de clasificación climática de Köpen (para adaptarlo a las condiciones de la República Mexicana). México. UNAM, Instituto de Geografía.
http://www.publicaciones.igg.unam.mx/index.php/ig/catalog/view/83/82/251-1
Espinosa, R.M., Ortiz, C.H.F.E. and Vargas, V.E. (2012) Muestreo de suelos y preparación de muestras. Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias. Centro de Investigación Regional del Noreste. Campo Experimental Río Bravo. Desplegable para Productores Núm. 23.
http://www.inifapcirne.gob.mx/Biblioteca/Publicaciones/935.pdf
Sobral, L.F. (1998) Nutrição e adubação do coqueiro. In: Ferreira, J.M.S. and Warwich, A., Eds., A cultura do coqueiro no Brasil, 2nd Edition, Embrapa-SPI, Brasilia, Embrapa-CPATC, Aracaju, 129-157.
Phytomonitor (2019) Archivo de análisis de fertilidad de suelos-2019 del laboratorio Phytomonitor. Calzada Aeropuerto N° 7299-B. Colonia Bachigualato. Culiacán Sinaloa, México. CP. 80140.
Dahnke, W.C. and Vasey, E.H. (1973) Testing Soils for Nitrogen. In: Walsh, L.M. and Beaton, J.D., Eds., Soil Testing and Plant Analysis, Soil Science Society of America Inc., Madison, 97-114.
SEMARNAT (2002) Norma Oficial Mexicana NOM-021-RECNAT-2000, que establece las especificaciones de fertilidad, salinidad y clasificación de suelos, estudios, muestreo y análisis. Secretaria de Medio Ambiente y Recursos Naturales. Diario Oficial.
http://www.ordenjuridico.gob.mx/Documentos/Federal/wo69255.pdf
Sobral, L.F. and Santos, Z.G. (1987) Sistema de recomendaçóes de fertilizantes para o coqueiro (Cocos nucifera L.) com base na análise foliar. EMBRAPA-CNPCo. Documentos, 7, 23 p.
https://www.embrapa.br/busca-de-publicacoes/-/publicacao/355693/sistema-de-recomendacoes-de-fertilizantes-para-o-coqueiro-cocos-nucifera-l-com-base-na-analise-foliar
Negreiros, J., Painho, M., Aguilar, F. and Aguilar, M. (2010) Geographical Information Systems Principles of Ordinary Kriging Interpolator. Journal of Applied Sciences, 10, 852-867. https://doi.org/10.3923/jas.2010.852.867
Ver Hoef, J. (2018) Kriging Models for Linear Networks and Non-Euclidean Distances: Cautions and Solutions. Methods in Ecology and Evolution, 9, 1600-1613.
https://doi.org/10.1111/2041-210X.12979
Lin, L., Cao, G., Zhang, F., Ke, X., Li, Y., Xu, X., Li, Q., Guo, X., Fan, B. and Du, Y. (2019) Spatial and Temporal Variations in Available Soil Nitrogen—A Case Study in Kobresia Alpine Meadow in the Qinghai-Tibetan Plateau, China. Journal of Geoscience and Environment Protection, 7, 177-189.
https://doi.org/10.4236/gep.2019.73010
Yang, Z.O., Mei, X., Gao, F., Li, Y. and Guo, J. (2013) Effect of Different Nitrogen Fertilizer Types and Application Measures on Temporal and Spatial Variation of Soil Nitrate-Nitrogen at Cucumber Field. Journal of Environmental Protection, 4, 129-135. http://www.scirp.org/journal/gep.2013.41015
https://doi.org/10.4236/jep.2013.41015
Empresa Brasileira de Pesquisa Agropecuária (1993) Centro de Pesquisa Agropecuária dos Tabuleiros Costeiros. Aracaju, SE. Recomendações técnicas para o cultivo do coqueiro. Aracaju. 43 p. (EMBRAPA. CPATC. Circular Técnica, 01).
Sobral, L.F. (2015) Informe de Comisión a Brasil. Proyecto INIFAP-SAGARPA-EMBRAPA “Formación de técnicos especializados en agricultura, ganadería y silvicultura para el desarrollo de las zonas tropicales de México”. 33 p.