Improving the understanding of phosphate fertilization in soil P content, acid phosphatase and production of sugarcane

The sugarcane crop is grown in large areas and has a productive chain of billions of dollars. In its chain, they are involved from sugar production to second generation hydrated alcohol. Phosphate nutrition is of great importance for culture, therefore requiring further studies. We sought to evaluate sources and doses of P in the absence/presence of filter cake. The first three models refer to P₂O₅ sources and doses in the absence of the filter cake and the last three models refer to P₂O₅ sources and doses in the presence of the filter cake (7.5 Mg ha^-1, in dry weight). As a statistical basis, we used average, median, maximum, minimum and standard deviation data for the variables evaluated.甘蔗作物种植规模庞大，其产业链年产值可达数十亿美元。该产业链涵盖从蔗糖生产到第二代水合乙醇的全流程环节。磷素营养对甘蔗栽培具有重要意义，因此相关研究亟待进一步深化。本研究旨在探究施加与不施加滤饼（filter cake）条件下，磷素源与施用量的效应。前3组试验处理对应不施加滤饼时的五氧化二磷（P₂O₅）源与施用量，后3组试验处理对应施加干重为7.5 Mg·ha⁻¹滤饼时的五氧化二磷源与施用量。本研究以各供试观测变量的平均值、中位数、最大值、最小值及标准差作为统计分析依据。