Fertilizers for Sugarcane

Cantarella, Heitor; Rossetto, Raffaella

doi:10.5151/blucheroa-sugarcane-sugarcanebioethanol_39

Cited by 10 publications

(17 citation statements)

References 23 publications

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“…In our research, the N-fertilization increased the stalk yield [18,25,49,53,54], where during the experimental period the highest sugarcane yield was obtained after applying rates between 120 and 150 kg ha −1 N (Fig. 3), corroborating other authors [25,26,46], who suggest applying N rates near 150 kg ha −1 of N in green cane system. The average sugarcane yield (include 3 crop cycle) was obtained after applying an N rate of 130 kg ha −1 (Fig.…”

Section: Discussionsupporting

confidence: 91%

“…The literature reports a clear response to nitrogen fertilizer in sugarcane ratoon, with maximum theoretical yields being obtained from 100 to 120 kg ha −1 N, in Brazil under a green cane harvesting system [25,26]. However, the harvesting system had no effect on the response to N in our work.…”

Section: Discussioncontrasting

confidence: 44%

“…Nevertheless, Penatti [24] recommended increasing the N dose in all areas harvested without burning by at least 20% compared to burnt cane. To fulfill these nutritional requirements, the N dose applied on sugarcane ratoons (without burning) is between 150 and 200 kg N ha −1 [25], defining the exact nitrogen doses, requires field experiments to determine crop response to N-fertilization [26].…”

Section: Introductionmentioning

confidence: 99%

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Harvesting Systems, Soil Cultivation, and Nitrogen Rate Associated with Sugarcane Yield

et al. 2018

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The adoption of mechanical harvesting of green cane gives rise to concerns as to whether systems developed under burnt cane harvesting are applicable to a green cane harvesting system. In particular, tillage, which is an integral part of the burnt cane system, may no longer be necessary, and the nitrogen fertilizer rates required may need to be replaced due to the large amounts of organic matter being returned to the soil after green cane harvesting. Mechanical harvesting is relatively new in Brazil and little is known about its effect on other sugarcane production strategies. This work aimed to evaluate sugarcane performance under not only different harvesting and cultivation systems, but also different nitrogen fertilizer rates over a 3-year period. The experimental design was a split plot with harvesting systems (burnt vs. green) as main plots, cultivation (interrow vs. no cultivation) as sub plots, and nitrogen rates as sub-sub plots. The harvesting systems produced similar sugarcane yields throughout the experimental period, which demonstrates that the harvest systems do not influence sugarcane yield. Mechanical tillage practices in interrow after harvesting had no impact on stalk yield or sugar quality, indicating no necessity for this operation in the following crop. Ratoon nitrogen fertilization promoted an increase of stalk and sugar yield, with highest yields obtained at the rate of 130 kg ha −1 N. However, there was no interaction between harvesting system and nitrogen rate.

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Section: Discussionsupporting

confidence: 91%

Section: Discussioncontrasting

confidence: 44%

Section: Introductionmentioning

confidence: 99%

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Harvesting Systems, Soil Cultivation, and Nitrogen Rate Associated with Sugarcane Yield

et al. 2018

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“…This pH rise also led to a greater P availability from filter cake, a rich-P residue (Table 1) with about 50% of its total P available in the short-term under favourable soil conditions [24]. As expected, the non-significant changes in pH for the clayey soil (Table 3) indicate that the extent of these changes will strongly depend on the soil pHbuffering capacity [14].…”

Section: Statistical Analysesmentioning

confidence: 53%

“…•ha −1 , respectively, which are the application rates commonly used in Brazilian sugarcane fields [24]. Biochar, filter cake and vinasse were thoroughly mixed with the dry soil to obtain a completely homogeneous mixture, and soil moisture was adjusted to 60% water-filled pore space (WFPS).…”

Section: Experimental Set-up and Designmentioning

confidence: 99%

Effects of Biochar on the Emissions of Greenhouse Gases from Sugarcane Residues Applied to Soils

Abbruzzini¹,

Zenero²,

Andrade³

et al. 2017

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The sugar and bioethanol industry generate large amounts of filter cake and vinasse, residues that are applied to sugarcane fields as conditioners and organic fertilizers. However, these may be significant sources of greenhouse gases emissions to the atmosphere. This study assessed the impact of sugarcane straw biochar on the emissions of CO 2 , CH 4 and N 2 O promoted by filter cake and vinasse applied to soil, and its effects on the chemical properties and bacterial communities of a Typic Hapludox and a Quartzipsamment. A laboratory incubation was conducted for 100 days with both soils under five treatments: vinasse and filter cake amendment (FV), plus biochar at 10 (FV + B10), 20 (FV + B20) and 50 (FV + B50) Mg•ha −1 , and a control. Soil pH, available P and exchangeable base contents increased with biochar added to sandy soil. Mineral N decreased with biochar addition to both soils. The FV treatment increased CO 2 emissions by 5-fold and 2.4-fold in sandy and clayey soils, respectively, compared to the control. Moreover, FV +B10 increased CO 2 emissions by 4% and 6.4% in sandy and clayey soils, respectively, compared to FV. Cumulative N 2 O emissions in FV were 537% and 125% higher in sandy and clayey soils, respectively, compared to the control. Nevertheless, increasing biochar amendment rates reduced N 2 O emissions from 24% to 34% in sandy soil, and from 14% to 56% in clayey soil. CH 4 emissions were negligible. The effects of filter, vinasse and biochar amendments on soil amelioration were closely related to its buffering capacity. Temporal changes on bacterial community structure were more pronounced in the sandy soil compared to clayey, and indicated that N 2 O emission mitigation in clayey soil was

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Sugarcane response to polyhalite fertilizer in Brazilian Oxisols

et al. 2020

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Polyhalite (PYH), (K 2 SO 4 ůMgSO 4 ů2CaSO 4 ů2H 2 O), contains four nutrients of great importance to sugarcane (Saccharum spp.), but has lower water solubility than traditional K fertilizers. Two studies were conducted to determine if PYH fertilizer (11.6% K) promoted sugarcane response comparable to other K fertilizers on highly weathered, acidic Oxisol soils in Brazil. A pot study compared PYH with potassium chloride (KCl, 50% K) and potassium sulfate (K 2 SO 4 , 40% K and 17% S), both amended to the same Ca, Mg, and S contents, applied at five rates ranging from 0 to 166 kg K ha −1 in limed and unlimed soil. A field study evaluated PYH with KCl applied in a 5-30-10 blend at planting followed by sidedress applications of K as PYH or KCl in the establishment year and two ratoon crops. In the pot study, there were minimal effects of fertilizer source and application rate on early growth in sugarcane while liming was detrimental. Uptake of K in the biomass was linear and similar among fertilizer sources. PYH increased S uptake and soil tests compared to KCl and K 2 SO 4. In the field study, KCl and PYH had similar sugarcane yield and quality with K uptake in both exceeding K applied and PYH increased S uptake and soil test SO 4-S. These studies confirm nutrient release from PYH to sugarcane was adequate and comparable to KCl and K 2 SO 4 , with some effect of PYH on nutrient uptake and soil test that did not affect sugarcane yield or quality.

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Fertilizers for Sugarcane

Cited by 10 publications

References 23 publications

Harvesting Systems, Soil Cultivation, and Nitrogen Rate Associated with Sugarcane Yield

Harvesting Systems, Soil Cultivation, and Nitrogen Rate Associated with Sugarcane Yield

Effects of Biochar on the Emissions of Greenhouse Gases from Sugarcane Residues Applied to Soils

Sugarcane response to polyhalite fertilizer in Brazilian Oxisols

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