Impact of Tillage and Fertilization on CO 2 Emission from Soil under Maize Cultivation

Liliana Salinas-Alcántara, Rocio Vaca, Pedro del Águila, Nadia de la Portilla-López, Gustavo Yáñez-Ocampo, Laura A. Sánchez-Paz and Jorge A. Lugo
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Liliana Salinas-Alcántara: Laboratorio de Edafología y Ambiente, Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Toluca 50000, Mexico
Rocio Vaca: Laboratorio de Edafología y Ambiente, Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Toluca 50000, Mexico
Pedro del Águila: Laboratorio de Edafología y Ambiente, Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Toluca 50000, Mexico
Nadia de la Portilla-López: Laboratorio de Edafología y Ambiente, Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Toluca 50000, Mexico
Gustavo Yáñez-Ocampo: Laboratorio de Edafología y Ambiente, Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Toluca 50000, Mexico
Laura A. Sánchez-Paz: Laboratorio de Edafología y Ambiente, Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Toluca 50000, Mexico
Jorge A. Lugo: Laboratorio de Edafología y Ambiente, Facultad de Ciencias, Universidad Autónoma del Estado de México, Instituto Literario No. 100, Toluca 50000, Mexico

Agriculture, 2022, vol. 12, issue 4, 1-12

Abstract: Agriculture is in a constant state of change. Its new practices and technologies represent impacts that are difficult to predict. The transition from animal traction to tractors and the substitution of manure for synthetic fertilizers are changes that are taking place particularly in developed countries, yet they are increasing in developing ones. However, the effect of these changes on agriculture and soil CO 2 emissions remains controversial. The objective of this study was to measure the effects of two tillage systems and fertilization on the CO 2 emissions from the soil under maize cultivation. Therefore, it consisted of two tillage systems, namely tractor (T) and animal (A) traction, and four fertilization methods. The fertilization treatments tested were: (CH) application of N, P, K chemical fertilizer; (HM) application of horse manure; (CM) application of chicken manure; and (CT) unfertilized control. We found that the soil CO 2 emission rates in the maize growing season was higher than those in the tillage before the harvest season. Soil respiration peaked in June after the second fertilizer application (9394.59–12,851.35 mg CO 2 m −2 h −1 at tractor and 7091.89–12,655.86 mg CO 2 m −2 h −1 at animal traction). The production of corn grain only presented differences between the treatments with and without application of fertilizers.

Keywords: animal traction; tractor; manure; fertilizer; agriculture (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
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