6 research outputs found

    北疆早熟棉区高产优质栽培技术体系集成与示范推广

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    本成果因地制宜实施、总结、改进棉花栽培技术规程,建立高产优质高效适耗栽培模式与技术体系;建立棉花目标产量,因土优化平衡施肥适用技术与棉花专用长效复合肥合理使用技术,把原来的氮、磷配比1:0.57调整为N:P_2O_5为1:0.42~0.5;选育、示范、扩繁抗病、早熟、高产、优质、强适的主栽品种,选择方向与科学调整产量结构;探索提出棉花播种适期及改进宽播技术,一播全苗;示范应用病毒农药及其生物防治技术,实施综合有效防治棉花病虫害措施,重点遏控棉铃虫加剧发生和枯黄萎病蔓延危害;研究、监测、跟踪高产棉田群体生育动态,改进肥水运筹、化学调控、调节灌溉、栽培管理的综合调控技术

    新疆棉花可持续优质高产综合技术集成示范工程

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    该项目通过技术综合集成,分别形成早熟棉区、中低产棉区、风沙土棉区相应的100、120、150、200和250kg棉花优质高产栽培技术模式与配套技术体系;根据种植区光热、土壤条件,创立增株增铃为主的技术路线,将亩株数从认为已达极限的1.1万株增至1.8-2.2万株;利用农区多样性生物相生相克关系,首创种植苜蓿带防治棉蚜“生态棉田”新模式,实现无害化生产;根据新疆早熟棉区冬寒多雪,利用长效肥缓释特点,改基肥+追肥的传统施肥为秋季一次性全耕层施肥技术;建立性诱剂、赤眼蜂、病毒杀虫剂、瓢虫扩繁等研制、开发及其综防体系,并加以应用;其脱落酸研究成果具有我国自主知识产权,在棉花种植中应用,可促进根系发育、..

    Measurement of integrated luminosity of data collected at 3.773 GeV by BESIII from 2021 to 2024*

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    Determination of the number of ψ(3686) events taken at BESIII

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    The number of ψ(3686) events collected by the BESIII detector during the 2021 run period is determined to be (2259.3±11.1)×106 by counting inclusive ψ(3686) hadronic events. The uncertainty is systematic and the statistical uncertainty is negligible. Meanwhile, the numbers of ψ(3686) events collected during the 2009 and 2012 run periods are updated to be (107.7±0.6)×106 and (345.4±2.6)×106, respectively. Both numbers are consistent with the previous measurements within one standard deviation. The total number of ψ(3686) events in the three data samples is (2712.4±14.3)×10^

    Amplitude analysis of the decays D0π+ππ+πD^0\rightarrow\pi^+\pi^-\pi^+\pi^- and D0π+ππ0π0D^0\rightarrow\pi^+\pi^-\pi^0\pi0

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