Gessagem na cultura da soja no sistema de plantio direto com e sem adubação potássica.

Moda, Leandro Rosatto; Borges, Bernardo Melo Montes Nogueira; Flores, Rilner Alves; Santos, Carlos Leandro Rodrigues dos; Prado, Renato de Mello; Sousa, Júnior Inácio de

doi:10.18227/1982-8470ragro.v7i2.948

Cited by 9 publications

(9 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Similar results were found in studies by Caires et al (1999), Neis et al (2010), Caires, Joris and Churka (2011), Rampim et al (2011), Moda et al (2013), and Pauletti et al (2014). Interaction between gypsum and phosphorous was not observed in the macro and micronutrients contents for the corn crop (Table 5).…”

Section: Resultssupporting

confidence: 88%

See 1 more Smart Citation

Gypsum and Phosphorus in Improving Biometric and Nutritional Attributes of Soybean/Second Season Corn Succession

et al. 2018

View full text Add to dashboard Cite

-The objective with this work was to evaluate the effect of the agricultural gypsum, associated with phosphate fertilization, on the nutrition, development and yield of soybean and corn in succession, under no-tillage system. The experiment was conducted at Universidade Federal de Goiás, Regional Jataí, in a randomized blocks design 5x3 factorial arrangement, with 4 replicates. The first factor consisted of the gypsum doses (0, 1, 2, 4 and 8 Mg ha-1) and the second the phosphorus doses (0, 50 and 100% of the recommended dose). Leaf nutrient contents, leaf area index, SPAD index, dry plant mass, final plant population, one thousand grain mass and grain yield were evaluated in the crops. In the soybean, the number of pods was also obtained and in the corn the average ear length, number of rows per ear, number of grain per ear and number of ears. Phosphorus doses increase leaf Mg contents in soybean and corn. The application of gypsum reduces the Mg and K leaf contents and increases the Ca, S, and Mn contents in the two cultures. Gypsum provides increases in the SPAD index in soybean plants. The unbalance of the N / K ratio in corn leaves, provided by the increase of the gypsum doses, reduces the leaf area of this crop. Doses of P and gypsum do not influence the yield of soybeans and maize.

show abstract

Section: Resultssupporting

confidence: 88%

“…However, increases in corn yield by using gypsum without water deficit were observed in studies by and Zandoná et al (2015). Nevertheless, several studies did not indicate responses to gypsum applied in soybeans (CAIRES et al, 1998;2003;NEIS et al, 2010;RAMPIM et al, 2011;MODA et al, 2013).…”

Section: Introductionmentioning

confidence: 96%

Gypsum and Phosphorus in Improving Biometric and Nutritional Attributes of Soybean/Second Season Corn Succession

et al. 2018

View full text Add to dashboard Cite

show abstract

“…4 Mg ha -1 (Figure 2A). This may be associated with the uptake of sulfur because this element plays an important role in crop nutrition as a constituent of essential amino acids (cysteine and methionine) and of several coenzymes (MODA et al, 2013). Sulfur deficiency impairs protein synthesis and causes a reduction in yield (EPSTEIN; BLOOM, 2006).…”

Section: Resultsmentioning

confidence: 99%

Response of soybean and corn to soil mechanical intervention and agricultural gypsum application to the soil surface

et al. 2016

View full text Add to dashboard Cite

Agricultural gypsum is considered an important tool in the improvement of soil chemical properties; however, crop responses to its application are contradictory. Studies have shown that the physical effects of soil mechanical intervention is short-lasting and has little impact on grain yield. Therefore, the aim of this study was to investigate corn and soybean response to soil mechanical interventions and to the application of agricultural gypsum to soil surface. The experiment involved cultivation of two crops each of soybean (i. ResumoO gesso agrícola tem sido apontado como importante ferramenta para a melhoria do perfil químico do solo, porém, as respostas das culturas, especificamente as de grãos são contraditórias. Para as intervenções mecânicas de solo, os resultados existentes revelam efeito físico pouco duradouro e com pouco impacto sobre o rendimento de grãos. Por isso, o objetivo do trabalho foi verificar as respostas do milho e da soja a intervenções mecânicas do solo e aplicação de gesso agrícola em superfície. O experimento consistiu no cultivo de duas safras de grãos de soja

show abstract

“…Our results showed no relationship between the S content of leaf tissue and the relative grain yield of five different crops spanning 31 crop harvests (Figure 7). Some authors found that S in leaf tissue increased with S application to soil; however, this effect resulted in no increase in grain yield (Rheinheimer et al, 2005;Frandoloso et al, 2010;Moda et al, 2013). Therefore, using leaf tissue analysis alone to guide S application requires caution because annual crops tend to take up nutrients in amounts exceeding their basic nutritional requirements (luxury consumption) (Ercoli et al, 2011).…”

Section: Sulfur Content Of Leaf Tissue and Grain Yieldmentioning

confidence: 99%

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Pias

Tiecher

Cherubin

et al. 2019

Rev. Bras. Ciênc. Solo

View full text Add to dashboard Cite

Sulfur (S) fertilization recommendations for grain crops in Brazil were formerly established from studies on crops with a low yield potential grown on soils under conventional tillage (CT). However, the subsequent adoption of no-tillage (NT) altered S dynamics in the soil, making it necessary to carefully evaluate the applicability of these S fertilizer recommendations. In addition, the emergence of modern high-yield-potential genotypes, the successive application of concentrated low-sulfur fertilizers, and reduction in S atmospheric deposition have raised the likelihood of positive responses of crops to S fertilization. Available literature reports contrasting crop responses to S fertilization in Brazilian soils, ranging from substantial gains to slight yield losses depending on the particular crop, soil, and climate. The primary aim of this study was to examine available data for crop grain responses to S application in NT soils in order to ascertain whether existing recommendations established for Brazilian CT soils also hold for NT soils. A systematic review of data from 35 scientific publications spanning 58 crop harvests revealed a positive yield response to S fertilization in 31 % of the crop harvests, with an average yield increase of 16 %. Crops on soils with available SO 4 2--S contents above the critical level (viz., 7.5 mg dm -3 ) exhibited no positive response to S fertilization in any crop harvest (n = 18). Dry edible bean and corn were the most responsive crops, and canola and wheat, the least. For the trials with positive crop responses, a fertilizer rate of 26 kg ha -1 S sufficed to obtain at least 95 % of the maximum possible yield. In general, the S fertilization recommendations previously established for CT soil proved effective with grain crops on NT soils as a result of the critical levels of soil available SO 4 2--S and the fact that the recommended S rates are similar to those found in this study considering trials conducted under NT conditions only. However, existing recommendations could be improved by using additional criteria for soils with available SO 4 2--S contents below the critical level since a positive response was observed in 22 % (n = 18) and 92 % (n = 12) of the crop harvests under a subtropical and a tropical climate, respectively. Our results suggest that S fertilization must be prioritized in NT soils with available SO 4 2--S contents below 7.5 mg dm -3 in the 0.00-0.20 m layer, especially in tropical climate zones. In addition, regional fertilizer recommendation guidelines should consider crop type and yield expectation in order to facilitate more sustainable S management and increased crop yields in Brazil.

show abstract

Gessagem na cultura da soja no sistema de plantio direto com e sem adubação potássica.

Cited by 9 publications

References 11 publications

Gypsum and Phosphorus in Improving Biometric and Nutritional Attributes of Soybean/Second Season Corn Succession

Gypsum and Phosphorus in Improving Biometric and Nutritional Attributes of Soybean/Second Season Corn Succession

Response of soybean and corn to soil mechanical intervention and agricultural gypsum application to the soil surface

Crop Yield Responses to Sulfur Fertilization in Brazilian No-Till Soils: a Systematic Review

Contact Info

Product

Resources

About