Nutrient accumulation models in the banana (Musa AAA Simmonds cv Williams) plant under nitrogen doses

Abstract

This research determined the effect of four nitrogen (N) doses on the nutritional behavior of (N), potassium (K), phosphorus (P), calcium (Ca) and magnesium (Mg), respectively, in banana Williams, during five plant development stages and two productive cycles. The treatments were as follows: 1) absolute control, 2) 0 N, 3) 161 kg N ha-1, 4) 321.8 kg N ha-1 and 5) 483 kg N ha-1, respectively. A multivariate approach of the differences among cycles was used to adjust the models and eliminate their individual effect, with a randomized complete block design with repeated measurements over time. There were significant differences among plant development stages, with an increase in nutrient accumulation in the banana plant, there were no differences among treatments or blocks, nor in the interaction block by treatment, but the dose of 321.8 kg of N, exhibited a fructification increase in terms of N accumulation, harvest was exceeded by the dose of 483 kg of nitrogen, Ca and Mg, were the other nutrients, which showed effect at the dose of 483 kg of N but increasing only to harvest. It was concluded that high doses of nitrogen showed a trend to increase nutrient accumulation during the development of the banana plant, but especially until fructification, with the exception of Ca and Mg, which achieved the greatest accumulation in harvest.

Carbon-nitrogen ratio in soils with fertilizer applications and nutrient absorption in banana (Musa spp.) cv. Williams

“…4). Torres et al (2017) stated that, for the doses 161 and 321.8 kg ha -1 of N, there was low agronomic efficiency, corroborating the low response in the nitrogen application as reflected in the C/N ratio with values oscillating between 6 and 6.4 for the absorption zone (Tab. 3).…”

“…3). Moreno and Moral (2008) confirmed that low C/N ratios can be associated with an excess of nitrogen that is lost, a situation that can be associated with the low agronomic efficiency observed by Torres et al (2017).…”

“…The C/N ratio is a parameter that is related to the decomposition of organic matter, indicating the availability of nitrogen in a soil (Torres et al, 2017). When organic matter has high nitrogen content, microorganisms have greater mineralization since the microflora (bacteria, fungi and actinomycetes) satisfy the nitrogen requirements so that it is not a limiting factor.…”

“…The literature reports that 11 is the average value for the C/N ratio, which can vary from 4 to 30, depending on the soil, content, and type of organic matter, environmental conditions, and the use and management of the soil (Torres et al, 2017). Therefore, organic matter with a C/N ratio of 30 (30:1) favors immobilization; lower ratios (20:1) have faster mineralization, so both processes increase soil fertility (Navarro, 2003).…”

Design, development and performance of solar dryer for pineapple (Ananas comosus (L.) Merr.), mamey (Mammea americana L.) and banana (Musa paradisiaca L.) fruit drying

“…Fruits with a high content of sugars and acids adapt easily to the dehydration process (Ochoa, 2016;Cañizares, Bonafine & Laverde, 2007;Torres, Sánchez & Cayón, 2017). Therefore, CMFD-Convective Multi Flash-Drying, is a process that can be applied for the crispy fruits production and is an alternative to the lyophilization process (Zotarelli, Almeida & Borges, 2011).…”