Determination of diagnostic standards on saturated soil extracts for cut roses grown in greenhouses

Abstract

This work comprises the theoretical determination and validation of diagnostic standards for the analysis of saturated soil extracts for cut rose flower crops (Rosa spp.) growing in the Bogota Plateau, Colombia. The data included 684 plant tissue analyses and 684 corresponding analyses of saturated soil extracts, all collected between January 2009 and June 2013. The tissue and soil samples were selected from 13 rose farms, and from cultivars grafted on the 'Natal Briar' rootstock. These concurrent samples of soil and plant tissues represented 251 production units (locations) of approximately 10,000 m2 distributed across the study area. The standards were conceived as a tool to improve the nutritional balance in the leaf tissue of rose plants and thereby define the norms for expressing optimum productive potential relative to nutritional conditions in the soil. To this end, previously determined diagnostic standard for rose leaf tissues were employed to obtain rates of foliar nutritional balance at each analyzed location and as criteria for determining the diagnostic norms for saturated soil extracts. Implementing this methodology to foliar analysis, showed a higher significant correlation for diagnostic indices. A similar behavior was observed in saturated soil extracts analysis, becoming a powerful tool for integrated nutritional diagnosis. Leaf analyses determine the most limiting nutrients for high yield and analyses of saturated soil extracts facilitate the possibility of correcting the fertigation formulations applied to soils or substrates. Recommendations are proposed to improve the balance in soil-plant system with which the possibility of yield increase becomes more probable. The main recommendations to increase and improve rose crop flower yields would be: continuously check pH values of SSE, reduce the amounts of P, Fe, Zn and Cu in fertigation solutions and carefully analyze the situation of Mn in the soil-plant system.

Sistema Integrado de Diagnóstico y Recomendación, su aplicación y utilidad en la agricultura. Una Revisión

“…To make use of this method for nutritional diagnosis in a crop, it is necessary to establish DRIS norms or standards that can be obtained for the plant tissue and/or physical and chemical properties of the soil. The best norms are generated from a large database for a specific genotype within a particular agro-ecological zone, where variables of relief, climate, integrated crop management practices, crop yield, concentration of nutrients in the plant, and chemical and physical variables of the soil are related to the soil-plantenvironment relationship (Behera et al, 2016;Chacón et al, 2013a;Franco-Hermida et al, 2017González, 2017;Herrera, 2015;Landriscini et al, 1997;Pereira & Justino, 2021).…”

“…Local calibration of DRIS norms offers greater precision in the diagnosis of deficiencies or imbalances in a crop, using those produced for other regions and providing reliability, rigor, and accuracy (Franco-Hermida et al, 2017Landriscini & Galantini, 2018).…”

“…Once the DRIS norms for a crop are known, along with reference average values of the concentrations of the nutrient pairs in the high-yielding population (Kania & Callejas, 2011), the DRIS indices (DRIS-I) are found to identify possible nutritional imbalances and to define the order of nutrient requirements at the foliar or edaphic level (Franco-Hermida et al, 2017).…”

“…In Colombia, DRIS studies have been carried out on rubber trees, banana, and roses (Chacón-Pardo et al, 2013a;Franco-Hermida et al, 2017;González, 2017), along with studies in Africa on maize (Dagbenonbakin et al, 2013), in India on banana (Raghupathi & Srinivas, 2014), and in Argentina on wheat (Landriscini & Galantini, 2018).…”

Progress, problems and prospects for standardization of greenhouse-related technologies

“…In accordance with those, the requirements for different ecological types and climatic conditions can be fulfilled [28][29][30] . For the second aspects, some scholars from different fields in Western countries and in China have done the research on the labor standards for different plants grow in greenhouse in different environments [22,31,32] . In China, there are also complex environments and many types of greenhouses.…”