摘要：[目的]为了科学指导云南省绥江县玉米生产,探索玉米最佳推荐施肥量,为制定绥江县玉米配方施肥提供科学依据。[方法]通过开展绥江县玉米"3414"田间肥效试验,借助"3414田间试验设计与数据分析管理系统"软件,对玉米产量三元二次和一元二次肥料效应方程进行相关研究。[结果]该区域玉米最佳施肥方案为:纯N、纯P2O5和纯K2O分别为244.38、58.75和107.38 kg/hm2,获得最佳产量6 975.60 kg/hm2,最大效益16 888.58元/hm2。[结论]合理配施N、P、K肥,既可提高玉米产量,又可增加经济效益,对绥江县开展玉米配方施肥具有指导意义。

摘要：[Objective] To provide scientific guidance for corn production in Suijiang County of Yunnan Province, explore the best recommended fertilization of corn, and provide a scientific basis for formulating the formula fertilization of corn in Suijiang County. [Method] Through carrying out ＂3414＂ corn field fertilizer efficiency experiment in Suijiang County, with the help of ＂3414＂ field experiment design and data analysis management system＂ software, the ternary quadratic and one-variable quadratic fertilizer efficiency equations on corn yield were analyzed. [Result] The optimum fertilization scheme for corn in the region was as follows： when pure N, pure P2O5 and K2O were respectively 244.38, 58.75 and 107.38 kg/hm^2, the the obtained best yield of corn was 6 975.60 kg/hm^2, and the maximum benefit was 16 888.58RMB/hm^2. [Conclusion] The reasonable formula of N, P and K fertilizers can not only improve the yield of corn, but also increase economic benefit, having certain reference significance to the development of formula fertilization of corn in Suijiang County.

摘要：9利用计算机辅助设计进行方案论证为了更好地做好鄂尔多斯东胜区体育馆场扩声系统施工深化设计工作，笔者使用EASFA．3声学软件，按照实际的建筑结构在计算机上仿造模型，并依据STIPA设计目标0．52，结合上述***公式，计算推导出的线源阵列组数及相应Q值的设计结论，布放符合设计结论的10组PROSO品牌线源阵列扬声器FL系统。对所设计的扩声系统进行了模拟分析工作，论证预测工程竣工后声学指标的准确性。

摘要：针对顶棚闭合后形成1 600 000 m3特大空间的体育场扩声设计,要求在RT60较长的条件下,不仅使扩声设计指标达到JGJ/T 131—2000的体育馆一级指标,同时还要实现STIPA空场平均值>0.50(各测量点不低于0.45条件下,其平均值方可有效)的招标要求。这个具有挑战性的扩声工程,采用了电声建声互补的设计理念与步骤,最终实现了目标。