Atmometer and crop coefficient use in irrigation scheduling in silage corn

Authors

  • Arturo Reyes-González Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias . Campo Experimental La Laguna. Blvd. José Santos Valdez No. 1200 pte Col. Centro. 27440 Matamoros Coahuila, México.
  • David Guadalupe Reta-Sánchez INIFAP
  • Juan Isidro Sánchez-Duarte INIFAP
  • Pablo Preciado-Rangel Tecnológico Nacional de México/Instituto Tecnológico de Torreón
  • Victor Manuel Rodríguez-Moreno INIFAP
  • Osias Ruiz-Álvarez INIFAP

DOI:

https://doi.org/10.19136/era.a10n1.3160

Abstract

Irrigation scheduling is a key factor for efficient water management in agriculture. The objective of the study was to program the irrigations with
the use of the atmometer and the crop coefficient (Kc) in forage corn (Zea mays L.) to evaluate its effect on plant height, leaf area index, dry matter yield (DM) and
water use efficiency (WUE) under different irrigation treatments. The study was carried out in the Experimental Field La Laguna of INIFAP located in Matamoros,
Coahuila, Mexico. Three corn hybrids (H-431, H-383 and SB-302) were used with a subsurface drip irrigation system, applying 60, 80 and 100% evapotranspiration (ET) treatments and a control (gravity irrigation). The experimental design was completely randomized blocks with divided plots and four replications. Irrigation scheduling with the atmometer and Kc of corn led to a higher DM yield (18.83 t ha−1) and WUE (3.66 kg DM m−3) in the three hybrids with 100% ET. The WUE in 100% ET was 1.36, 1.63 and 40% higher with respect to 60%, 80% ET and irrigation by gravity, respectively. Therefore, scheduling irrigation using the atmometer and crop Kc in a subsurface drip irrigation system helps to obtain more efficient water use in forage corn.

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Published

2023-03-29

Issue

Section

SCIENTIFIC ARTICLE

How to Cite

Reyes-González, A., Reta-Sánchez, D. G., Sánchez-Duarte, J. I., Preciado-Rangel, P., Rodríguez-Moreno, V. M., & Ruiz-Álvarez, O. (2023). Atmometer and crop coefficient use in irrigation scheduling in silage corn. Ecosistemas Y Recursos Agropecuarios, 10(1). https://doi.org/10.19136/era.a10n1.3160

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