The competitiveness of the sugarcane production chain requires investments in new technologies and management practices at all stages of production, especially in tillage or soil preparation and planting activities. Then, which production system presents the best productive and economic performance for the sugar cane crop in Brazil? The objective of this research was planned to answer this question, and due to differences in the production structure of sugarcane mills (SMs) and sugarcane independent producers (SIPs), the analysis was intended to explore data from for these two groups. A significant sample with data from 31 SMs and 42 SIPs in the State of São Paulo, Brazil, and quantitative modeling, based on linear programming, were used to determine the best production systems. The results showed that conventional fixed-rate tillage and the use of fixed-rate pre-sowing seedlings lowered the costs for SIPs and SMs, while variable-rate localized tillage; semi-mechanized tillage with fixed rate; tillage fixed-rate seedlings; and the fixed-rate pre-sprout seedlings increased the revenues for the mills. SIPs that use fixed-rate conventional tillage; conventional fixed-rate tillage; fixed-rate mechanized planting; and fixed-rate semi-mechanized planting increased the profitability or sugarcane producers. SIPs that renew 5% of their sugarcane area attained a productivity of 85 t ha⁻¹ compared to 88 t ha⁻¹ for SMs.

中文翻译：

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巴西圣保罗州甘蔗生产的生产率和盈利能力

甘蔗生产链的竞争力要求在生产的所有阶段都投资于新技术和管理实践，尤其是在耕作或整地和种植活动中。那么，哪种生产系统呈现出巴西甘蔗作物最佳的生产和经济表现？计划本研究的目的是为了回答这个问题，并且由于甘蔗磨坊（SMs）和甘蔗独立生产者（SIPs）的生产结构存在差异，该分析旨在探索这两组的数据。大量样本来自巴西圣保罗州31个SM和42个SIP的数据，并基于线性规划进行了定量建模，以确定最佳的生产系统。结果表明，常规定速耕作和定速预播苗的使用降低了SIP和SM的成本，而定速局部耕作则降低了成本。固定费率的半机械耕作；耕作定速苗；固定价格的新芽苗增加了工厂的收入。使用固定速率常规耕作的SIP；常规定额耕作；定额机械化种植；固定汇率的半机械化种植提高了甘蔗生产商的利润率。更新甘蔗面积5％的SIP达到85吨公顷的生产力 固定价格的新芽苗增加了工厂的收入。使用固定速率常规耕作的SIP；常规定额耕作；定额机械化种植；固定汇率的半机械化种植提高了甘蔗生产商的利润率。更新甘蔗面积5％的SIP达到85吨公顷的生产力 固定价格的芽苗苗增加了工厂的收入。使用固定速率常规耕作的SIP；常规定额耕作；定额机械化种植；固定汇率的半机械化种植提高了甘蔗生产商的利润率。更新甘蔗面积5％的SIP的生产力达到85吨公顷^-1，而SM则为88 t ha ^-1。