Nitrogen and Potassium Fertilization in the Initial Growth of Annona crassiflora Mart.

Costa, Andréia Mendes da; Carlos, Leandro; Silva, Patrícia Oliveira da; Barbosa, Kássia de Paula; Rodrigues, Carlos Ribeiro

doi:10.1590/2179-8087.034117

Cited by 2 publications

(3 citation statements)

References 30 publications

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“…On the other hand, the cultivation of plants at the highest N rate (400 mg dm −3 ) had negative effects on the growth of young E. dysenterica after 278 d of cultivation. Similar behavior in growth and dry mass production was observed at doses higher than 504 mg dm −3 N in Talisia esculenta seedlings [25] and at doses of 200 mg dm −3 N in Annona crassiflora [35].…”

Section: Eugeniadysenterica Growth Was Stimulated By Phosphate Fertilsupporting

confidence: 73%

Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus

Reis

Silva

Santana

et al. 2020

Plants

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The production of high-quality seedlings and their use in commercial planting reduce pressure on natural areas. Eugenia dysenterica DC is a native fruit tree from the Brazilian Cerrado, whose nutritional requirements are still unclear. This study aimed to evaluate the effects of nitrogen (N) and phosphorus (P) supplementation on the physiology, growth and nutrient uptake, and use efficiencies of E. dysenterica seedlings grown in glasshouse conditions. The following rates were used in separate experiments: 0, 50, 100, 200, and 400 mg dm−3 N and 0, 100, 200, 400, and 600 mg dm−3 P. The experiment was conducted in a randomized block with four replications. The lowest N rate (50 mg dm−3) increased the stomatal conductance (gS) and, consequently, resulted in the highest transpiration (E), electron transport (ETR), and photosynthetic (A) rates. Also, rates of 50 mg dm−3 and 100 mg dm−3 N increased the Root Uptake Efficiency (RUE) and plant Nutrient Use Efficiency (NUE) for macronutrients and the RUE for micronutrients, stimulating plant growth. Phosphorous fertilization resulted in the maximum values for photosynthesis, electron transport rate, total dry mass, and NUE at the 200 mg dm−3 rate. The results of this study suggest that fertilization with 50 mg dm−3 N and 200 mg dm−3 P is suitable for the development of E. dysenterica seedlings.

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Section: Eugeniadysenterica Growth Was Stimulated By Phosphate Fertilsupporting

confidence: 73%

Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus

Reis

Silva

Santana

et al. 2020

Plants

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“…Another important fact related to the decrease of RDM in the seedlings is that, in larger applications of K, excess KCl may increase the chloride content in the plant and cause toxicity. According to Costa et al (2019), applying the 200 mg dm -3 of K in araticum (Annona crassiflora) seedlings caused a reduction of 30% in RDM. Therefore, the excess K content in the root system tends to cause toxicity, directly affecting growth and harmful to seedling development in the field (Costa et al, 2019, Saiz-Fernández et al, 2015.…”

Section: Resultsmentioning

confidence: 99%

“…According to Costa et al (2019), applying the 200 mg dm -3 of K in araticum (Annona crassiflora) seedlings caused a reduction of 30% in RDM. Therefore, the excess K content in the root system tends to cause toxicity, directly affecting growth and harmful to seedling development in the field (Costa et al, 2019, Saiz-Fernández et al, 2015.…”

Section: Resultsmentioning

confidence: 99%

QUALITY OF Genipa Spruceana STEYERM SEEDLINGS SUBMITTED TO FERTIGATION

Maria

Rossi

Caione

et al. 2022

Rev. Agric. Neotrop.

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Jenipapo (Genipa spruceana) is a native species of the Amazon that has great potential in producing seedlings for reforestation. This study aimed to evaluate the effect of nutrient doses applied through fertigation on the quality of Genipa spruceana. The experimental design was completely randomized with five replications, totaling seven treatments. The treatments were: control (without fertilization); 900 mg N L-1 and 750 mg K L-1 with and without micronutrients; 1800 mg N L-1 and 1500 mg K L-1 with and without micronutrients, 3600 mg N L-1 and 3000 mg K L-1 with and without micronutrients. The experiment was conducted in a greenhouse for 35 days. Then, the following variables were evaluated: stem diameter, height, root and shoot dry matter, and total dry matter. From these measurements, the following ratios were calculated: height/stem diameter, height/shoot dry matter, shoot dry matter/root dry matter, and Dickson quality index. Weekly fertigation applying 1800 mg N -1 and 1500 mg K L-1 provided the best Dickson Quality Index of Genipa spruceana seedlings. The hypothesis of the present study was confirmed, and the Genipa spruceana did not have a tolerance to high N e K fertilization.

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Nitrogen and Potassium Fertilization in the Initial Growth of Annona crassiflora Mart.

Cited by 2 publications

References 30 publications

Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus

Growth, Physiology and Nutrient Use Efficiency in Eugenia dysenterica DC under Varying Rates of Nitrogen and Phosphorus

QUALITY OF Genipa Spruceana STEYERM SEEDLINGS SUBMITTED TO FERTIGATION

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