Efficiency of Nitrogen Use in Sunflower

Coêlho, Ester dos Santos; Souza, Almir Rogerio Evangelista de; Lins, Hamurábi Anízio; Santos, Manoel Galdino dos; Souza, Matheus de Freitas; Tartaglia, Francilene de Lima; Oliveira, Anna Kézia Soares de; Lopes, Welder de Araújo Rangel; Silveira, Lindomar María da; Mendonça, Vander; Júnior, Aurélio Paes Barros

doi:10.3390/plants11182390

Cited by 7 publications

(4 citation statements)

References 59 publications

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“…In this context, plant mineral fertilization is the primary strategy for higher production [2]. However, the increase in the price of fertilizers requires studies that aim to indicate the efficiency and economic viability of nutrients for each crop in a specific way [2,3].…”

Section: Introductionmentioning

confidence: 99%

Economic Aspects of Zinc Oxide Fertilization in Yam (Dioscorea alata L.) in a Semi-Arid Region of Brazil

Bezerra,

Ribeiro,

Coêlho

et al. 2024

Horticulturae

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The management and improvement of yam productivity are associated with a good supply of essential nutrients for the growth and development of the crop that has economic viability. This research aimed to evaluate the economic feasibility of foliar fertilization with Zintrac® in two yam agricultural seasons (2022/2023 and 2023/2024). Therefore, two experiments were conducted at the Rafael Fernandes Experimental Farm, Mossoró, RN, Brazil. The experimental design was in a Latin square design with five treatments of doses of Zintrac® (0, 1, 2, 3, and 4 L ha−1) and five replications. Among the production costs of yams, labor and seed acquisition were the most significant. The highest profitability index was achieved with the dose of 1L Zintrac® ha−1 in the first season and second season, which corresponded to 78.97 and 57.86%. For the first season, increments were observed in all treatments that received zinc doses with increases of 48.70, 31.22, 14.30, and 15.93% for 1, 2, 3, and 4 L of Zintrac® ha−1 compared to the dose of 0 L ha−1. On the other hand, in the second season, there was an increase only in the dose of 1 L ha−1 of Zintrac®, which corresponded to 51.3% in the net yield (ha−1) of the dose of 0 L ha−1. Therefore, foliar zinc oxide fertilization was economically viable for the yam crop, obtaining higher economic indices at the dose of 1 L ha−1. The highest cost for growing yams is using a dose of 4 L ha−1 of Zintrac®, totaling USD 6977.59 (first season) and USD 6868.33 (second season)

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Section: Introductionmentioning

confidence: 99%

Economic Aspects of Zinc Oxide Fertilization in Yam (Dioscorea alata L.) in a Semi-Arid Region of Brazil

Bezerra,

Ribeiro,

Coêlho

et al. 2024

Horticulturae

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“…As a result, farmers have initiated to utilize of organic fertilizers to improve soil chemical and physical structure. Crop productivity is increased by carefully adjusting agricultural methods such as fertilization, tillage, and removal of weeds [14][15][16][17]. There are several kinds of organic fertilizers, such as biofertilizers which are considered the most recent eco-friendly technique for promoting sustainable agriculture.…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Kinds of Fertilizers on the Vegetative Growth, Antioxidative Defense System and Mineral Properties of Sunflower Plants

2023

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Long-term use of inorganic fertilizers can increase soil acidity, be harmful to the environment, and leaving bad effects on human health. Organic fertilizer application is one of the safer alternatives with numerous benefits, such as supplying nutrients for plant growth. Sunflower is one of the most important grown oilseed crops in the world. Sunflower plants need a supply of essential nutrients for their optimal growth. As a result, the aim of this research is to explore the effect and mechanism of two organic fertilizers from different sources (sugarcane bagasse ash (SBA), compost coupled with biofertilizer (CCB)) and NPK inorganic fertilizer as a control on enzyme activity, physiological traits, and the uptake of mineral contents and heavy metals in sunflower plant (Helianthus annuus L.). Fresh or dry mass (FM, DM), osmolytes and secondary metabolites, photosynthesis pigments, and enzymatic and non-enzymatic antioxidant molecules were all determined. Both sugarcane bagasse ash and compost coupled with biofertilizer resulted in a high value of fresh and dry mass, plant height, and chlorophyll content. The results revealed that the use of sugarcane bagasse ash (SBA) and compost coupled with biofertilizer increased osmolyte contents (soluble proteins and soluble sugars), antioxidants system enzyme/molecule (catalase, superoxide dismutase, peroxidase, and TGS) and secondary metabolites. However, the highest value of proline, total free amino acids, and phenolic compounds in sunflower plants was determined after NPK fertilizer application. On the contrary, it lowered Na, Na/K ratio, and Cd content. Data showed that organic fertilizers enhanced the accumulation of Cl, PO4, and SO4 content in sunflower plants. Generally, CCB and SBA treatments increased Cu, Zn, and Pb accumulation in sunflower plants. Using organic fertilizers with chemical NPK fertilizer can improve the chemical, physical, and biological soil properties.

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“…Its oil has a high content of not synthesized by humans' fatty acids (linoleic and oleic acids) and it is used widely in the food industry instead of olive oil [3,4]. Furthermore, sunflower oil is used for the biodiesel production, reducing the negative impacts of non-renewable energy sources that have harmful effects in environment and in society [5].…”

Section: Introductionmentioning

confidence: 99%

Effect of Different Tillage Practices in Sunflower (<em>Helianthus annuus</em>) Cultivation in a Crop Rotation System with Intercropping Triticosecale -Pisum sativum

Molla¹,

Charvalas²,

Dereka³

et al. 2022

Preprint

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The objective of this work was to investigate the effect of different soil tillage practices in sunflower cultivation in a rotation system with intercropping Triticosecale x Pisum sativum. For this purpose a two year experimental field of 5% slope was established in central Greece. There were four treatments with three replications each. The treatments were: (a) no tillage - planting parallel to the contour (NTC-PAC), (b) conventional tillage - planting parallel to the contour (CTC-PAC), (c) no tillage - planting perpendicular to the contour (NTC-PEC), (d) conventional tillage - planting perpendicular to the contour (CTC-PEC). During the experiment plant height, leaf area index, specific leaf area, plants’ total nitrogen and plants’ proteins were measured. According to the results plant height ranged from 64.9 (CTC-PAC) to 85.2 cm (NTC-PEC) the 1st year and between 66.5 – 86.5 cm in CTC-PAC and NTC-PEC treatments in the 2nd year. Furthermore, LAI and SLA, plant’s total nitrogen and protein content and N-uptake were affected positively by the no tillage practice. To conclude, sunflower is a promising crop in a rotation system with intercropping Triticosecale x Pisum sativum, cultivating under rainfed sloping conditions.

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Efficiency of Nitrogen Use in Sunflower

Cited by 7 publications

References 59 publications

Economic Aspects of Zinc Oxide Fertilization in Yam (Dioscorea alata L.) in a Semi-Arid Region of Brazil

Economic Aspects of Zinc Oxide Fertilization in Yam (Dioscorea alata L.) in a Semi-Arid Region of Brazil

Effects of Different Kinds of Fertilizers on the Vegetative Growth, Antioxidative Defense System and Mineral Properties of Sunflower Plants

Effect of Different Tillage Practices in Sunflower (<em>Helianthus annuus</em>) Cultivation in a Crop Rotation System with Intercropping Triticosecale -Pisum sativum

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