In-Field Rice Panicles Detection of Different Growth Stages

The present study was part of a comprehensive field plot experiments of double cropping rice (spring and autumn) conducted at location of Research Centre Shapu, in Zhaoqing, Guangdong Province, China (23.16° N and 11.57° E) in 2021. There were 90 plots in the spring rice field experiment (Exp.1) and the autumn rice field experiment (Exp.2), respectively. The size of each plot was 10.8 × 3.5 m2. The experimental plot was designed with three replications. Different strategies for plant growing practices, including three cultivars, five levels of N fertilizers, and two planting densities were applied in each plot. In Exp.1, rice seeds were sown in early May, transplanted in late May, and harvested in early July. Three cultivars included Huahang No.51, Huahang No.57, and Guang8you2156. Two planting densities, namely 30×14 cm2 and 30×21 cm2, were adopted. Five levels of N fertilizers (N0-N4: 0, 45, 90, 180 and 270 kg/ha) with the same amount of P fertilizers (130 kg/ha) and K fertilizers (180 kg/ha) were applied in the experiment (Fig. 1a). In Exp.2, rice seeds were sown in late July, transplanted in early August, and harvested in late October. Three cultivars included Y liangyou3089, Huahang No.57, and Guang8you2156. Two planting densities were the same as those of Exp.1. Five levels of N fertilizers (N0-N4: 0, 90, 180, 270 and 360 kg/ha) with the same amount of P fertilizers (130 kg/ha) and K fertilizers (180 kg/ha) were applied in the experiment (Fig. 1b). A protected planting area with a width of 1 m was provided surrounding the experimental site. To further prevent the diffusion of fertilizers among plots, a guard row of ridge was built on the boundary between two adjacent plots and a plastic wrap covered the ridge. The growing practices, such as irrigation and pesticide application, were performed according to the local standards of rice cultivation to ensure no water stress, disease, or pest stresses in the experiments.

本研究是2021年在中国广东省肇庆市沙埔研究中心开展的双季稻（double cropping rice）综合性田间小区试验的一部分，试验点位坐标为23.16°N、11.57°E。早稻田间试验（试验1）与晚稻田间试验（试验2）各设90个小区，每个小区面积为10.8×3.5 m²，试验设置3次重复（replications）。每个小区均采用差异化的栽培管理策略，涵盖3个水稻品种、5个氮肥（nitrogen fertilizers）水平以及2个种植密度（planting densities）。

在试验1中，水稻于5月上旬播种，5月下旬移栽，7月上旬收获。供试品种包括华航51号、华航57号以及广8优2156。种植密度设为30×14 cm²与30×21 cm²两个梯度。试验设置5个氮肥施用量水平（N0-N4：0、45、90、180、270 kg/ha），同时统一施用磷肥（phosphorus fertilizers，130 kg/ha）与钾肥（potassium fertilizers，180 kg/ha），具体试验设计见图1a。

在试验2中，水稻于7月下旬播种，8月上旬移栽，10月下旬收获。供试品种包括Y两优3089、华航57号以及广8优2156。种植密度与试验1完全一致。试验设置5个氮肥施用量水平（N0-N4：0、90、180、270、360 kg/ha），同样统一施用磷肥（130 kg/ha）与钾肥（180 kg/ha），具体试验设计见图1b。

试验区域四周设置宽度为1m的保护种植带。为进一步防止肥料在小区间扩散，相邻小区边界设置垄作保护行，并以塑料薄膜覆盖垄体。灌溉与农药施用等栽培管理措施均按照当地水稻种植标准执行，以确保试验过程中无水分胁迫、病害或虫害胁迫发生。

搜集汇总

背景与挑战

背景概述

该数据集包含中国广东省肇庆市双季水稻（春季和秋季）田间实验的图像数据，涵盖三个生长阶段（孕穗期、抽穗期和灌浆期）。数据集由华南农业大学的研究团队收集，使用小米10智能手机在1.6米高度拍摄，旨在支持精准农业研究。