Thank you, Mariano. Good morning, everyone. Let's start on Page 4 with a brief analysis on the rains in Mato Grosso do Sul. As seen on the top chart, rains in our cluster during the fourth quarter of 2020 were 10.7% below the 10-year average but 12.8% higher compared to the fourth quarter of 2019. Rainfalls were distributed throughout the quarter and was especially concentrated towards the end of the December, resulting in interruptions in our crushing activities, as can be seen in the following slide.
I would like to briefly comment on the weather in the Central South region of Brazil. The region, which accounts for approximately 85% of Brazil's sugarcane production, experienced dry weather for a prolonged period of time last year. This forced mills to shut down operations earlier than usual as they didn't have enough cane to crush. For the same reason, the beginning of this year's harvest season will probably be delayed, resulting in a longer than anticipated in the harvest period.
It is worth highlighting that we will continue to crush cane year-round and produce both sugar and ethanol during the interharvest period. This is so because we are based in a region that has a different weather dynamic and because we operate under a continuous harvesting model.
Let's continue with Slide 5, where I would like to discuss our sugarcane crushing. During the fourth quarter of 2020, a total of 2.5 million tons of sugarcane were crushed, 40.1% or 700,000 tons higher than the same period of last year despite the reduction in effective milling days. Indeed, in an attempt to make up for the slowdown in crushing activities during the second quarter and in order to profit from high prices, we decided to accelerate milling operations. This was evidenced by the astonishing 57.6% increase in milling per day. Needless to say, it was the greater cane availability, coupled with enhanced efficiencies at the industry level, that made it possible.
On a year-to-date basis, a total of 11.1 million tons of sugarcane were crushed. This represents an increase of 2.4% compared to the same period of last year. Again, this speaks for the highly efficient and coordinated work during the second half of the year.
Please jump to Page 6, where I would like to walk you through our agricultural productivity. During the quarter, sugarcane yields reached 82 tons per hectare, 20.3% higher compared to the fourth quarter of 2019. The year-over-year gap is fully explained by the negative impact of the adverse weather conditions on the 2019 yield as most of the harvested area was cane below optimum growth stage.
TRS content was 137 kilos per ton in the fourth quarter of 2020 and 132 kilograms per ton in 2020, 5.5% and 1.1% lower compared to the same period of last year. Again, the reason for the decrease is explained by the dry weather conditions in 2019, which led to higher TRS content. The combination of these 2 effects resulted in TRS production per hectare of 11.3 tons in the fourth quarter of 2020, 13.6% higher year-over-year. Year-to-date, yields reached 79 tons per hectare and TRS content 132 kilograms per ton, resulting in a TRS production per hectare of 10.4 tons, 3.5% higher year-over-year.
Let's move ahead to Slide 7, where I would like to discuss our production mix. As already said, in light of the improved outlook on prices and in order to take advantage of the favorable weather and cane availability, our strategy during the quarter was to maximize crushing. As you can see in the top-left chart, during the fourth quarter of 2020, sugar traded at a premium of 14.3% and 3.9% to hydrous and anhydrous ethanol, which traded at $0.125 per pound and $0.14 per pound, respectively. As a result, our efforts were focused on maximizing sugar, the product with the highest marginal contribution. Indeed, we operated our sugar kitchen at full capacity throughout the quarter, diverting as much as 50% of TRS to sugar production compared to 6% during the same period of last year.
On a full year basis, we maximized sugar production in 44% compared to 15% during 2019, despite a first quarter of full ethanol maximization prior to the pandemic. I would like to insist that this high degree in flexibility constitutes one of our most important competitive advantages since it allow us to make a more efficient use of our fixed assets and sell the product with the highest marginal contribution.
In terms of ethanol, during the quarter, we diverted 50% of TRS to the ethanol distillery compared to 94% during the same period of last year, when our strategy was to maximize this product. Year-to-date, sugar accounted for 36.9% of total EBITDA generation in the Sugar, Ethanol and Energy business, considering other operating income for items higher compared to 2019. Again, this is a clear evidence of our capacity to shift production from one product to the other.
Let's please turn to Slide 8, where I would like to discuss quarterly results. As you can see on the top-left chart, ethanol sales volumes decreased by 36.1% year-over-year. This is fully explained by our strategy to maximize sugar production due to the lagging impact of the pandemic on ethanol prices and demand, in particular, during the first semester of the year. During 2020, hydrous and anhydrous ethanol traded on average at sugar equivalent prices of $0.12 per pound and $0.1301 per pound, 6.7% discount and 1.3% premium to sugar, respectively.
Average selling prices for ethanol were higher measured in reais but lower in U.S. dollars, standing at $0.132 per pound in sugar equivalent, representing a 36.1% year-over-year reduction. On account of the lower selling volumes and lower average prices in U.S. dollars, net ethanol sales during the year amounted to $180.6 million, 46.4% lower year-over-year.
In spite of the lower results, I would like to mention once again that ethanol prices experienced a recovery throughout the second half of the year due to higher gasoline prices, increase in fuel demand and lower supply, thus building a positive scenario for the upcoming months.
In the case of energy, year-to-date net sales amounted to $36.9 million, marking a 31.3% decrease compared to 2019 driven by a 5.3% decrease in volume and a 27.5% decrease in average selling prices measured in U.S. dollars.
Net sales of sugar increased by 72.7% in 2020 compared to the previous year, reaching $167.8 million. Sales volumes increased by 89.9% year-over-year, led by an increase in production mix and volume, which fully offset the 9.1% decrease in average selling prices measured in U.S. dollars despite an increase in prices measured in reais. Although sugar is traded in U.S. dollars, the depreciation of the Brazilian real does have an impact on prices due to the fact that our functioning currency is in reais and our reporting currency in U.S. dollars.
In addition, I would like to comment that during 2020, we started exporting certified organic sugar produced at our UMA mill. Certification is required by the European market and is only granted after having produced organic sugar for a period of 3 years. We successfully exported approximately 5,000 tons of organic sugar at an average price of $0.25 per pound, capturing a significant premium over VHP sugar and plan on doubling the exported figure in 2021. In this way, we not only have a highly efficient cluster model in place but we also continue to add value to UMA.
Let's move to Slide 9, where I would like to explain our total cost of production. Total cost of production depicts on a cash basis how much it costs us to produce 1 pound of sugar and ethanol in sugar equivalent. Maintenance CapEx is included in the calculation since it's a recurring investment necessary to maintain the productivity of the sugarcane implantation. As we are calculating sugar and ethanol cost, energy is deemed by a by-product and thus deducted from total costs. As for the tax recovery line, it includes the ICMS tax incentive that the state of Mato Grosso do Sul granted us until 2032.
As shown in the table, total cash costs in 2020 marked a 12.7% reduction on a per unit basis, reaching $0.079 per pound of sugar equivalent. This decrease was explained by a 29% reduction in total production costs driven by higher crushing volume, which allowed us to dilute fixed costs, coupled with the year-over-year depreciation of the Brazilian real, which further contributed to reduced unit costs measured in U.S. dollars.
Additionally, enhanced agricultural efficiencies, lower industrial costs due to reduced third-party services and temporary suspension of wood chips purchases also had a positive impact on production costs. These positive effects were partially offset by the higher cost of third-party cane, both as a result of higher purchased volume and higher Consecana prices. At the same time, the maximization of sugar production led to an increase in SG&A expenses as well as a reduction in PIS/COFINS reimbursements.
Finally, to conclude with the Sugar, Ethanol and Energy business, please turn to Slide 10, where I would like to discuss financial performance. Adjusted EBITDA during the fourth quarter of 2020 was $80.3 million, $25.2 million or 45.6% higher compared to the fourth quarter of 2019. This increase was mostly explained by the $19.9 million higher result derived from the mark-to-market of our biological assets, partially offset by a loss derived from the mark-to-market of our commodity hedge position and an increase in SG&A on account of higher freight and farming costs due to higher sugar sales. On a full year basis, results were impacted by the effects of the pandemic. However, adjusted EBITDA amounted to $253.1 million, in line with last year.
I would now like to move on to the Farming business. Please direct your attention to Slide 12. As of today, Adecoagro finished its planting activities for the 2020/'21 harvest year. We planted 262,000 hectares, 10% higher than the previous harvest season. This increase is expected to come primarily from a greater leased area. So far, rents have been adequate in average. However, we continue to closely monitor water requirements as we are going through the critical phase in the development of most of the crops.
Let's move to Page 13, where I would like to walk you through the financial performance of our Farming and Land Transformation businesses. In 2020, adjusted EBITDA in the Farming and Land Transformation businesses reached $107.7 million, $35.9 million or 50.1% higher year-over-year. The decrease in financial performance is mostly explained by the $28.3 million higher result generated by the Farming business, although the Land Transformation business contributed with a $7.6 million increase following the completion of 2 land sales during 2020.
The Crops business generated an adjusted EBITDA of $35.7 million during 2020, 39.1% or $10 million higher compared to 2019. This is mainly explained by a $17 million gain in the mark-to-market of our biological asset and our grain inventory as a consequence of the increase in commodity prices, the higher planted area and the increase in yields for most of our crops; and by a cost dilution in U.S. dollars on account of enhanced efficiencies and the depreciation of the Argentine peso. These results were partially offset by a $10.5 million loss in the mark-to-market of our commodity hedge position.
The Rice business accounted for an increase in adjusted EBITDA of 67.8% or $13.7 million compared to the previous year, reaching $34.1 million in 2020. This was mostly driven by a $6.3 million gain in the mark-to-market of our biologic assets explained by the increase in commodity prices, coupled with an increase in area and yields as a result of recent investments which enhanced productivity; and a $6.9 million reduction in selling expenses due to a 4% reduction in export taxes and the cost dilution effect as a result of the depreciation of the Argentine peso during 2020.
The Dairy business was responsible for an increase in adjusted EBITDA of 21.3% and or $3.8 million compared to last year, totaling $18.2 million during 2020. This increase was driven by our enhanced efficiencies at the farm and the industry level led by our continuous focus on increasing productivity in every stage of our value chain; our production flexibility, which enabled us to capture the increase in demand in the domestic market, driven by COVID-19 pandemic; and an increase in gross sales, thanks to a 58.7% increase in sales volumes, partially due to the 3-month gap in 2019's industrial operations. This increase was partially offset by higher costs and expenses on account of the larger volume.
Let's now turn to Page 15, which shows the evolution of Adecoagro's consolidated main figures for the year. I would like to highlight the fact that despite all the challenges, we managed to outperform both from an operational and financial perspective.
Consolidated adjusted EBITDA totaled $342 million, 12.1% or $37 million year-over-year. As previously explained, the good results in Farming and Land Transformation explained the increase. At the same time, 2020 marked a milestone for the company as it was the first year that we generated positive free cash flow following the initiation of our 5-year plan back in 2017.
Turn now to Slide 16 to take a look at our net debt position. As you may see in the bottom-left chart, our net debt as of December 31, 2020, reached $635 million, $33 million or 4.6% lower than the previous quarter, driven by $122.7 million increase in cash and equivalents, which fully offset the higher gross debt. The higher cash equivalents was mainly explained by our strategy to raise long-term debt during the second half of the year with the idea to cancel short-term debt during the first semester of 2021. This will result in a significant improvement in our debt profile while substantially reducing capital payments for the year.
On a year-over-year basis, net debt in the fourth quarter of 2020 was 6.4% or $43.2 million lower compared to the fourth quarter of 2019 in spite of gross debt being flat year-over-year. This is explained by the 15.8% higher cash and equivalents driven by a positive free cash flow during the last 12 months and by the short-term working capital lines we raised throughout the year as part of our risk management program.
The fourth quarter of 2019, in turn, reflects the inflow from the insurance of the CRA bond in Brazil that took place by 2019 year-end. We believe that our balance sheet is in a healthy position, not only based on the adequate overall debt levels but also on the term of our indebtedness with approximately 78% having a long-term tenor.
As of December 31, 2020, both our net debt ratio as well as our liquidity ratio improved compared to the previous quarter. Indeed, our net debt ratio reached 1.86x, 18.9% lower than the third quarter of 2020 and 16.4% lower year-over-year.
At the same time, our liquidity ratio, which is calculated as cash and equivalents plus marketable inventories divided by short-term debt, reached 2.62x compared to 1.49x during the second quarter. This ratio shows the full capacity of the company to repay short-term debt with cash balance without raising external capital.
Thank you very much for your time. We are now open to questions.