Soil water content and wood ash fertilization on the cultivation of gladiolus

Marcel T J Pereira,Edna M Bonfim-Silva,Tonny J A Da Silva

doi:10.1590/1807-1929/agriambi.v20n4p350-356

Marcel T J Pereira, Edna M Bonfim-Silva + Show 1 more

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https://doi.org/10.1590/1807-1929/agriambi.v20n4p350-356

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Abstract

ABSTRACT Irrigation management, associated with the management of fertilization through the use of waste from plant material burning, has proven to be a sustainable strategy to increase the production of ornamental plants in greenhouses. The objective of this study was to evaluate the development of gladiolus subjected to soil water contents and wood ash fertilization in a Cerrado Oxisol. The experiment was conducted under controlled conditions from April to September 2014, in a randomized block design, arranged in a 5 x 5 factorial, with four replicates. The treatments consisted of five water contents (7, 14, 21, 28, and 35%) and five doses of wood ash (0, 8, 16, 24 and 32 g dm-3). Irrigation management was carried out using the portable probe Diviner 2000® . The evaluated variables were: plant height, number of leaves, shoot and root dry matter and diameter and mass of corms. The best results for diameter and mass of corms and number of leaves were obtained with combinations of soil water contents higher than 24% and fertilization with wood ash doses higher than 11 g dm-3.

Highlights

Soil moisture is considered of fundamental importance in the yield of crops, especially for those that respond to higher water contents with greater yields
This study aimed to evaluate the vegetative development and the production of corms of gladiolus subjected to different soil water contents and wood ash doses in a Cerrado Oxisol
The treatments consisted of five levels of volumetric soil water contents (7, 14, 21, 28 and 35%) and five doses of wood ash (0, 8, 16, 24 and 32 g dm-3)

Summary

Introduction

Soil moisture is considered of fundamental importance in the yield of crops, especially for those that respond to higher water contents with greater yields. The probe Diviner 2000®, a capacitance sensor (FDR), has been used to help the monitoring of soil water and irrigation management and, as its main advantages, provides fast and precise readings in subsurface (Silva et al, 2007). This study aimed to evaluate the vegetative development and the production of corms of gladiolus subjected to different soil water contents and wood ash doses in a Cerrado Oxisol. For the use of the Diviner 2000® capacitance probe in the irrigation management, the reading points were calibrated at each soil water content. The treatments consisted of five levels of volumetric soil water contents (7, 14, 21, 28 and 35%) and five doses of wood ash (0, 8, 16, 24 and 32 g dm-3). A significance level of 5% was used in all the statistical tests

Results and Discussion

Conclusions

Literature Cited