2014
DOI: 10.4025/actasciagron.v37i1.17972
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<b>Effects on soil chemical attributes and cotton yield from ammonium sulfate and cover crops

Abstract: ABSTRACT. Fertilizer use in no-till systems must be aligned with a correct interpretation of soil chemical attributes and crop demands. The objectives of this work were evaluate the effects of pre-sowing application of ammonium sulfate (AS) and of cover crops on the yields and soil chemical attributes of no-till cotton (Gossypium hirsutum L. r. latifolium Hutch) over two harvesting years. The experiment was arranged in randomized complete block design, with the plots in strips, and the variables were three cov… Show more

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Cited by 7 publications
(3 citation statements)
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References 25 publications
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“…In other studies, Fageria et al (2010) and Ferrari et al (2015) also found the soil pH to decrease with increasing doses of AS fertilizer rates. Ammonium sulphate is an acidic reaction fertilizer and it is stated that it will increase the microflora and Soxidizing bacteria in the soil as a sulphur containing fertilizer, thus accelerating the pH decrease (Lluch and Olivares, 1979;Müftüoğlu and Sarımehmet, 1993).…”
Section: Discussionmentioning
confidence: 97%
“…In other studies, Fageria et al (2010) and Ferrari et al (2015) also found the soil pH to decrease with increasing doses of AS fertilizer rates. Ammonium sulphate is an acidic reaction fertilizer and it is stated that it will increase the microflora and Soxidizing bacteria in the soil as a sulphur containing fertilizer, thus accelerating the pH decrease (Lluch and Olivares, 1979;Müftüoğlu and Sarımehmet, 1993).…”
Section: Discussionmentioning
confidence: 97%
“…An opposite effect was verified when comparing these results with the literature. For example, ammonium sulphate was found to cause a reduction of pH, calcium and magnesium with an increase of the aluminum content (Ferrari et al, 2015). Vol.…”
Section: Resultsmentioning
confidence: 99%
“…Early rice sowing with a cultivar of early harvest (90–100 days) favors the use of a second crop in same production area. Successive sowings can help maintaining sustainability in upland rice production; for example, unused fertilizer by the first crop can be utilized for the second crop during the same agricultural season 12 , 13 .…”
Section: Introductionmentioning
confidence: 99%