Effects of weed control and manure application on nutrient fluxes in the shifting cultivation milpa system of Yucatán

Maize (Zea mays L.) cultivation under the shifting cultivation system of Yucatán, Mexico, is normally limited to 2–3 years due to nutrient depletion and weed pressure. This study was undertaken to evaluate the effect of manure application and weed control on partial nutrient budgets for maize, and assess the effect of grain-only or whole-plant harvest on nutrient removal. Two farms were selected near Mérida, Mexico, each including two cultivation years. Maize grain, stem, and leaf fractions were harvested and analyzed for N, P, and K concentrations, and compared to quantities added through manure, to generate partial nutrient budgets. Multiple years of cultivation did not change soil organic matter content while extractable P was reduced (53–62%) at both farms and extractable K was lower (22%) for farm 1. Plant fractions contained similar amounts of N, while P accumulated in grain, and stem and leaf contained the largest K pools. Applied treatments affected crop nutrient removal predominantly through crop yield. Partial nutrient budgets suggested that with stover removal, the lower rate of manure may be sufficient to maintain P, but not N or K; whereas with the higher rate of manure all partial budgets were positive, suggesting nutrient accumulation over time.

[1]  Anònim Anònim.  Keys to Soil Taxonomy , 2010 .

[2]  D. Parsons,et al.  Managing maize production in shifting cultivation milpa systems in Yucatán, through weed control and manure application , 2009 .

[3]  Meinolf Sellmann,et al.  Spatially-Balanced Complete Block designs for field experiments , 2007 .

[4]  S. Lagoke,et al.  Response of low-nitrogen tolerant maize genotypes to nitrogen application in a tropical Alfisol in northern Nigeria , 2006 .

[5]  H. Bruns,et al.  Nutrient Uptake of Maize Affected by Nitrogen and Potassium Fertility in a Humid Subtropical Environment , 2006 .

[6]  M. Akande,et al.  Effects of rock phosphate amended with poultry manure on soil available p and yield of maize and cowpea , 2005 .

[7]  W. K. Russell,et al.  Resource Allocation in a Breeding Program for Phosphorus Concentration in Maize Grain , 2004 .

[8]  R. Poss,et al.  Sustainable agriculture in the tropics: the case of potassium under maize cropping in Togo , 1996, Nutrient Cycling in Agroecosystems.

[9]  N. Claassen,et al.  Growth and phosphorus uptake of maize cultivated alone, in mixed culture with other crops or after incorporation of their residues , 2003 .

[10]  H. Tiessen,et al.  Soil organic C sequestration and stabilization in karstic soils of Yucatan , 2003 .

[11]  F. Tun-Dzul,et al.  Tropical dry forest recovery after long term Henequen (sisal, Agave fourcroydes Lem.) plantation in northern Yucatan, Mexico , 2002 .

[12]  H. Tiessen,et al.  Soil fertility during shifting cultivation in the tropical Karst soils of Yucatan , 2002 .

[13]  Ceccon,et al.  VEGETATION AND SOIL PROPERTIES IN TWO TROPICAL DRY FORESTS OF DIFFERING REGENERATION STATUS IN YUCATAN , 2002 .

[14]  E. Ceccon,et al.  Vegetación y propiedades del suelo en dos bosques tropicales secos de diferente estado regeneracional en Yucatán , 2002 .

[15]  P. Brookes,et al.  Development of an Indicator for Risk of Phosphorus Leaching , 2000 .

[16]  Irma Trejo Vázquez.  El clima de la selva baja caducifolia en México , 1999 .

[17]  A. Juo,et al.  Chemical dynamics in slash-and-burn agriculture , 1996 .

[18]  Keith Goulding,et al.  Phosphorus Leaching from Soils Containing Different Phosphorus Concentrations in the Broadbalk Experiment , 1995 .

[19]  T. Perry.  Appendix IV – Nutrient Requirements of Beef Cattle , 1995 .

[20]  C. L. van Es,et al.  Spatial Nature of Randomization and Its Effect on the Outcome of Field Experiments , 1993 .

[21]  V. Rico-Gray,et al.  Vegetation and soil seed bank of successional stages in tropical lowland deciduous forest , 1992 .

[22]  C. Kessler.  An Agronomic Evaluation of Jackbean (Canavalia Ensiformis) in Yucatan, Mexico. I. Plant Density , 1990, Experimental Agriculture.

[23]  C. Kessler.  An Agronomic Evaluation of Jackbean (Canavalia Ensiformis) in Yucatan, Mexico. III. Germplasm , 1990, Experimental Agriculture.

[24]  Paul A. Herzberg,et al.  B fibers are the best predictors of cardiac activity during Vagus nerve stimulation , 2018, Bioelectronic Medicine.

[25]  R. Detwiler,et al.  Land use change and the global carbon cycle: the role of tropical soils , 1986 .

[26]  A. Mehlich.  Mehlich 3 soil test extractant: A modification of Mehlich 2 extractant , 1984 .

[27]  D. A. Storer.  A simple high sample volume ashing procedure for determination of soil organic matter , 1984 .