Eficiência agronômica de fertilizantes organominerais líquidos em batateira, cultivar Asterix

Abstract

RESUMOA cultura da batata é a que mais exige a utilização de fertilizantes, em relação a todas as outras culturas produzidas no Brasil. Por isso é importante realizar estudos com novas fontes que possam potencializar o balanço entre nutrientes, melhorar a qualidade física do solo, fornecer nutrientes de acordo com as necessidades da planta e reduzir impactos ambientais. Objetivou-se avaliar a eficiência agronômica de fertilizantes organominerais líquidos em batateira, cultivar Asterix. O delineamento utilizado foi o de blocos ao acaso, com quatro tratamentos e seis repetições. Os tratamentos consistiram na aplicação dos organominerais Acorda+Aminosan+Fitofert; Fitofert; Acorda e uma testemunha, onde não houve aplicação de organomineral. Apenas para produtividade de tubérculos da classe Especial, houve diferença entre os tratamentos, em que a aplicação de Acorda demonstrou ser mais favorável, produzindo 39,83 t ha -1 . Quando aplicados os três produtos testados (Acorda+Aminosan+Fitofert), há efeito negativo na produtividade. Embora os tratamentos não diferenciem em relação ao teor de sólidos solúveis, todos estão dentro da faixa ideal, no nível intermediário, para sua utilização na indústria. Palavras-chave: adubação; produtividade; Solanum tubesosum; sólidos solúveis Agronomic efficiency of liquid biofertilizers in potato cultivar Asterix ABSTRACTThe potato crop requires longer use of fertilizers, compared to all other cultures produced in Brazil. Therefore, it is important to conduct studies in, new sources that can enhance the balance between nutrients, improve soil's physical quality, provide nutrients based on the plant's needs and reduce environmental impacts. The objective this study was to evaluate the efficiency of liquid biofertilizer in potato, cultivar Asterix. The design was a randomized blocks, with four treatments and six replications. The treatments consisted in the application of biofertilizers Acorda + Aminosan + Fitofert; Fitofert; Acorda and a witness where there was no application of biofertilizer. Only for special class tuber yield, was difference between treatments, where the application of Acorda was more favorable, producing 39.83 t ha -1 . When the three tested products applied, there is a negative effect on the productivity. Although the treatments did not differ in relation to soluble solids, all are within the ideal range, at the intermediate level, for use in industry.

Organomineral fertilizers potentiate Atlantic potato cultivation

“…The association between organic acids and nutrients was favorable to the productivity of the class with the highest commercial value and total productivity. The results of the application of OMF to the productivity of several species have been reported in the literature (Ferreira et al, 2022;, including potato cultivation with pelleted OMF (Cardoso et al, 2015) and liquid OMF (Souza et al, 2017). Cardoso et al (2017) applied pelleted OMF in planting and observed a 22% higher productivity than mineral fertilizer, which corroborates the results obtained in the present study.…”

“…The mixing of several products with different sources and nutrients can promote deleterious effects in the production of potatoes, as reported by Souza et al (2017). Soil contents, absorption capacity of crops, and the quantity contained in each product are extremely important since the imbalance between nutrients can generate competition in absorption sites, compromising the metabolic potential of plants.…”

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

“…When using methods such as fertigation or foliar fertilization, BF products in liquid form can be used. However, because the practice is still recent in horticulture, how these products act and influence plant growth, productivity, vegetable quality and the absorption dynamics (Souza et al, 2017) is not clear. Therefore, the objective of this study was to determine the nutrient accumulations and productivity of potato, cv.…”

Biofertilizers in the coffee crop: application in the leaves and drip in the soil

“…With the use of methods such as fertirrigation or foliar fertilization, OM products in liquid form can be used. However, because the practice is recent and the information still not clear, especially related to how these products act and influence the production of plants, in the productivity, in the quality of the vegetables and in the dynamics of absorption (SOUZA et al, 2017).…”