Morphological quality of sweet corn (Zea mays L.) ears as response to soil moisture tension and phosphate fertilization in Campeche, Mexico

B. Rivera-Hernández, E. Carrillo-Ávila, J.J. Obrador-Olán, J.F. Juárez-López and L.A. Aceves-Navarro

Agricultural Water Management, 2010, vol. 97, issue 9, 1365-1374

Abstract: In Mexico, corn production, part of which is sweet corn, is mainly destined for human consumption. In the present work, the morphological quality of sweet corn ears was assessed in response to four levels of soil moisture tension indicating irrigation start (-5, -30, -55, and -80kPa) and three levels of phosphate fertilization (60, 80 and 100kgha-1) in carstic soils in the south-east of Mexico. A factorial experimental design with three replicates was used. The following variables were determined: fresh weight (SCFWh), dry weight (SCDWh), diameter (SCDh), and length (SCLh) of sweet corn ears, all without husk, as well as number of kernels (NKxE), number of unfilled kernels (NUK), number of rows (NRxE), and dry kernel weight per ear (DKW). Yield of fresh (YFSCh) and dry (YDSCh) sweet corn ears, both without husk, and the harvest index (HI) were also determined. HI did not show significant statistical differences among irrigation or fertilization treatments. Regarding the other variables, the effect of the more humid treatments (-5 and -30kPa) and the effect of the higher phosphorus doses (80 and 100kgha-1) were statistically equal (P

Keywords: Hybrid; A7573; Ear; characteristics; Drip; irrigation; Vertisols; Carstic; soils; Tensiometers (search for similar items in EconPapers)
Date: 2010
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Citations: View citations in EconPapers (4)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:agiwat:v:97:y:2010:i:9:p:1365-1374

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