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首页> 外文会议>Annual International Meeting of the American Society of Agricultural and Biological Enginners >Sugarcane Productivity under Drip Irrigation in Brazil: Varieties, Irrigation Depths and Ripening Processes
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Sugarcane Productivity under Drip Irrigation in Brazil: Varieties, Irrigation Depths and Ripening Processes

机译：巴西滴灌灌溉下的甘蔗生产率：品种，灌溉深度和成熟过程

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Sugarcane is a very important bioenergy crop for Brazil and drip irrigation a major tool for increasing its productivity. The experiment was conducted at "Luiz de Queiroz" College of Agriculture (USP) in Piracicaba-SP. Treatments were arranged in a factorial design (4x4x8) with split-split-plot with three replicates, totaling 128 treatments and 384 plots. The evaluated irrigation depths (L50, L 75 and L100L125) were variations in the fraction applied over time, relative to the L100 treatment where soil moisture remained close to field capacity (Qcc) throughout the experiment. Each tested variety had its own reference L100 based on digital tensiometer readings and datalogger acquisition system. The intensities of water deficit during maturation wereevaluated for M1 (moderate water deficit of long duration), M2 (intensive water deficit of long duration), M3 (no water deficit) and M4 (severe water deficit of short duration). The sugarcane yield (TCH) was favored by the combination L100 and M3, regardless of the studied variety, with an estimated average value of 232.2 t ha-1. Among the varieties, V4 had the highest TCH, with average of averaging 250.4 t ha-1 for L100. The V1, V2, V4 and V6 varieties, for irrigation depth L100, did not differ significantly for TCH and had the highest average1. Thus, one should consider the possibility of full drip irrigation, instead of the deficit one, for sugarcane.
机译：甘蔗是巴西的一个非常重要的生物能源作物，滴灌是提高生产率的主要工具。该实验是在Piracicaba-SP的“Luiz de Queiroz”农业学院（USP）进行的。处理以分体图分裂图排列，分裂图，三个重复，总计128种治疗和384个地块。评估的灌溉深度（L50，L 75和L100L125）是随时间施加的级分的变化，相对于L100处理，在整个实验中，土壤水分保持接近现场容量（QCC）。每个测试的种类都有自己的参考L100，基于数字张计数计读数和数据转录器采集系统。成熟过程中的水缺损的强度为M1（长期水缺陷的时间），M2（长持续时间的强化水赤字），M3（无水缺陷）和M4（短持续时间的严重水赤字）。甘蔗产率（TCH）由组合L100和M3赞成，无论研究多样，估计平均值为232.2 t ha-1。在该品种中，V4具有最高的TCH，平均平均为L100平均为250.4吨HA-1。对于灌溉深度L100，V1，V2，V4和V6品种对TCH没有显着差异，并且具有最高的平均值。因此，一个人应该考虑完全滴灌的可能性，而不是甘蔗的缺陷灌溉。

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