Yield and Nutrient Uptake of Soybean Cultivars Under Intensive Cropping Systems

Bortolon, Leandro; Bortolon, E. S. O.; Camargo, F. P. de; Seraglio, Natan Angelo; Lima, Alan de Ornelas; Rocha, Pedro Henrique Fernandes; Souza, Jéssica Pereira de; Sousa, Willian Conceição; Tomazzi, Marcelo; Lago, Bruno Cocco; Nicolodi, Margarete; Gianello, Clésio

doi:10.5539/jas.v10n12p344

Cited by 5 publications

(2 citation statements)

References 21 publications

(36 reference statements)

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“…This legacy P (residual P) is recognized as an important P pool to reduce the need for P input in crop farms (Withers et al, 2018). Results have shown that the equilibrium dose of P under the experimental conditions is ∼40 kg ha −1 P 2 O 5 , which is close to the amount of P exported by soybean harvest (Bortolon et al, 2018). This dose is enough to maintain available soil P and to provide P for soybean yield over time.…”

Section: Discussionmentioning

confidence: 85%

Organomineral Fertilizer Is an Agronomic Efficient Alternative for Poultry Litter Phosphorus Recycling in an Acidic Ferralsol

et al. 2022

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Brazil is a large phosphate importer due to the high demand for this nutrient for grain cropping on very weathered soils. However, Brazil has an important poultry production that generates ~6.8 million m3 year−1 of organic residue containing phosphorus and other nutrients, increasing the risk of environmental harm. However, if well managed, poultry litter can be a valuable source of P for crop growth in low fertile tropic soils. This article summarizes the long-term agronomic efficiency of organomineral fertilizers in supplying P to soybean and soil P maintenance as a strategy for secondary P recycling. Three fertilizers were used as P source: organomineral based on raw poultry litter, organomineral based on composted poultry litter; and a mineral monoammonium phosphate. Five soybean crop seasons were conducted with annual P doses (20, 40, 60, and 80 kg ha−1 of P2O5) and control without P application. After five crops, one additional soybean crop season was grown without P to evaluate the residual effect. Phosphorus concentration in leaves was evaluated in the first four seasons, and soil P availability in the first, third, and fourth seasons. There was no difference in soybean grain yield, P concentration in leaves, and soil P availability as a function of the P sources in the first crop. Soybean grain yield only varied with the P rate applied after the second season, when the control had the lowest grain yield. After five crops, organomineral resulted in a slight but significant soybean yield gain compared with MAP at higher doses. Over time, the available soil P increased with the highest P dose and decreased in the control treatment. The intermediate dose of 40 kg ha−1 P2O5 was enough to keep soil P level and lead to high soybean grain yield over the time, suggesting that the rate of applied P close to the P exportation by the grains has a long-term sustainable effect even in tropical soils, where residual P stocks are used. It can be concluded that organomineral fertilizer is an efficient farm input that can be used for residue destination and nutrient recycling, especially in acid tropical soils.

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Section: Discussionmentioning

confidence: 85%

Organomineral Fertilizer Is an Agronomic Efficient Alternative for Poultry Litter Phosphorus Recycling in an Acidic Ferralsol

et al. 2022

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“…These results are important for nutrient management; for example, N, P, and K uptake of current soybean varieties are higher than those in the 1970s, 1980s, 1990s, and 2000s due to genetic modifications of cultivars to meet the demands of the production systems (Bortolon et al, 2018).…”

Section: Discussionmentioning

confidence: 99%

Critical levels and sufficiency ranges for leaf nutrient diagnosis by two methods in soybean grown in the Northeast of Brazil

Souza

Vieira

Rozane

et al. 2020

Revista Brasileira De Ciência Do Solo

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Establishing sufficiency ranges and critical levels of nutrients are important for a correct evaluation of plant nutrition through leaf diagnosis. This study aimed to propose critical levels and sufficiency ranges of macro and micronutrients based on leaf diagnosis of soybean plants. The database used was generated from 86 samples of the third trifoliate leaf without petiole, collected during the flowering stage from soybean plants of the main cultivars used in the states of Piauí and Maranhão, Northeast region of Brazil. The results of macro and micronutrients and grain yield were used to calculate the critical level by the reduced normal distribution and boundary line methods, the latter was also used to generate the sufficiency ranges. Nutrient levels for 90 % maximum grain yield were considered for the critical level by the reduced normal distribution, and nutrient levels at the upper line of a dispersion diagram were considered for the boundary line method, using the relation between grain yield and nutrient concentration to generate sufficiency ranges for 95 and 99 % maximum grain yields. The critical levels generated by the boundary line method presented a larger number of deficient samples than the reduced normal distribution method, except for boron. The sufficiency ranges generated by the boundary line with 95 % of the maximum grain yield could not diagnose nutrient deficiency, except for copper. The critical levels by the reduced normal distribution and boundary line methods for leaf diagnosis of soybean were 40.2 and 42.1 g kg -1 ,

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Nutrient Uptake by Soybean Plants in Succession of Cover Crops in Northeast of Brazil

Pires

Souza²,

Medeiros

et al. 2022

Communications in Soil Science and Plant Analysis

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Yield and Nutrient Uptake of Soybean Cultivars Under Intensive Cropping Systems

Cited by 5 publications

References 21 publications

Organomineral Fertilizer Is an Agronomic Efficient Alternative for Poultry Litter Phosphorus Recycling in an Acidic Ferralsol

Organomineral Fertilizer Is an Agronomic Efficient Alternative for Poultry Litter Phosphorus Recycling in an Acidic Ferralsol

Critical levels and sufficiency ranges for leaf nutrient diagnosis by two methods in soybean grown in the Northeast of Brazil

Nutrient Uptake by Soybean Plants in Succession of Cover Crops in Northeast of Brazil

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