F. N. Nascimento, A. S. A. Andrade Júnior, E. A. Bastos, V. Q. Ribeiro, Alzeneide da Silva Lopes
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引用次数: 1
摘要
摘要/ Abstract摘要:本研究旨在根据地下滴灌施肥对N和K2O的响应，评价甘蔗(Saccharum officinarum)第一个作物周期的茎秆产量、工艺质量参数以及糖和酒精产量。试验在营养不良的Ultisol中进行，采用随机完全区组设计，共4个重复。处理为2X + 2X + 1不完全因子处理，分别施用60、80、120、160和180 kg ha-1 N和60、80、120、160和180 kg ha-1 K2O。施氮180 kg hm -1、K2O 60 kg hm -1时，产量最高，为217.5 Mg hm -1。施氮量在120 kg hm -1以上时，糖和酒精产量增加。在180 kg hm -1 N和60 kg hm -1 K2O处理下，可溶固形物含量、汁/肉汤中表观蔗糖、甘蔗中表观蔗糖、纯度和纤维的工艺品质特征平均最高。
Agro-industry production of sugarcane grown using subsurface drip fertigation with nitrogen and potassium
Abstract: The objective of this work was to evaluate the stalk yield, technological quality parameters, and sugar and alcohol productions in the first sugarcane (Saccharum officinarum) crop cycle, according to the response to N and K2O applications by subsurface drip fertigation. The experiment was carried out in a dystrophic Ultisol, in a randomized complete block design with four replicates. The treatments consisted of a 2X + 2X + 1 incomplete factorial arrangement with the application of 60, 80, 120, 160, and 180 kg ha-1 N and 60, 80, 120, 160, and 180 kg ha-1 K2O. The maximum estimated yield (217.5 Mg ha-1) was obtained with the application of 180 kg ha-1 N and 60 kg ha-1 K2O. Sugar and alcohol productions increased with N application above 120 kg ha-1. The technological quality characteristics of soluble solids content, apparent sucrose in the juice/broth, apparent sucrose in sugarcane, purity, and fiber show the highest averages with the application of 180 kg ha-1 N and 60 kg ha-1 K2O.
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