Accumulation of macronutrients and productivity of potato with foliar application of biofertilizer

Abstract

The addition of organic compounds to fertilizers has shown positive effects on plant metabolism. This study aimed to evaluate the macronutrient accumulation and productivity of potato with the use of biofertilizer (BF) applied to the leaves. A 2×7 factorial plot with a plot subdivided in time and ten replications used two forms of fertilization: a chemical fertilizer with conventional NPK (nitrogen, phosphorus and potassium: control) and conventional fertilizer plus biofertilizers (BF); evaluations were performed 31, 41, 51, 61, 71, 81 and 91 days after planting (DAP) using the Jelly cultivar. The BF increased the maximum N, K, Ca and Mg accumulations in the leaves, especially N and K, with the period of greatest accumulation occurring between 62 and 66 DAP. The accumulations of N, P, K, Ca and Mg in the tubers accelerated from 71 DAP. At the end of the cycle (e.g., 91 DAP), the increases in the nutrient accumulations of N, P, K and Ca were between 30 and 64% higher for the BF application, the Mg accumulations doubled and the S accumulations exhibited no differences between the evaluation periods. For the leaves, the following decreasing sequence of maximum accumulation was observed: K>N>Ca>Mg>S>P. For the tubers, the following decreasing sequence was obtained: K>N>P>Ca>Mg>S. The use of biofertilizers caused higher productivity of tubers of greater caliber and soluble solids contents in the cv. Jelly potato tubers.

Cadmium accumulation and transfer in yellowish-brown and limestone soils of five potato varieties based on a pot experiment in the central Hanjiang River basin

“…Satoru (Ishikawa et al, 2011) studied the Cd dynamic curves of Japonica rice varieties with low Cd content and Indica rice varieties with high Cd content and found that the root of Japonica rice varieties with low Cd content had a higher capacity for Cd absorption. Similar results were observed in studies comparing Cd accumulation among varieties of potato (Gonçalves et al, 2009;Moghadam and Shahmoradi, 2021;Pinheiro-Araújo et al, 2021).…”

Enhancing Seed Potato Production from In Vitro Plantlets and Microtubers through Biofertilizer Application: Investigating Effects on Plant Growth, Tuber Yield, Size, and Quality

“…Alongside evaluating potato plant growth and yield, an indicator commonly used to gauge the influence of biofertilizers on the macro and micronutrient contents was essential for the potato's lifecycle [54]. This assessment revealed significant variations in the levels of these nutrients due to the different biofertilizers examined in this study.…”

“…Nitrate reductase activity is heightened, leading to better nutrient utilization, and the biofertilizers even play a role in producing compounds that act against pathogens [32]. Araújo et al [54] and Sharma and Pandey [55] reported that applying biofertilizers in conjunction with mineral fertilizers significantly influenced the marketable tuber yield of potatoes compared to untreated plants.…”

“…Araújo et al [54] conducted a comparative study on the effects of biofertilizers on macronutrient uptake and potato productivity. They concluded that biofertilizers had a positive impact when compared to conventional chemical fertilizers and a combination of conventional fertilizers and biofertilizers.…”