Optimising Plant Establishment 2018 Hart Lentil Experiment

Data from the 2018 crop establishment trial at Hart, SA. The trial compared the establishment of Hurricane lentil at different target plant densities, under a conventional seeder and under a precision seeder, and at two different row spacings (a narrow row spacing of 22.9cm and a wide row spacing of 30.5cm). The experiment was run under the UOA1803-009RTX GRDC research project led by the University of Adelaide, and the experiment and data collection were managed locally in Hart by the Hart Field-Site Group.Files:Hart Lentil 2018.xlsxExperiment setup:Experiment managed locally by the Hart Field-Site Group. The trial was organised as a split plot design, with 4 main plot treatments (conventional seeder: wide row spacing, conventional seeder: narrow row spacing, precision seeder: wide row spacing, precision seeder: narrow row spacing), and 6 subplot treatments (target plant density 40, 60, 80, 100, 120 and 140 plants/m2). The design was arranged spatially in 3 bays with 32 rows, 4 replicates, 96 plots total. The variety of lentil sown for this trial was Hurricane lentil.Variables recorded:establishment count (plants/m2), interplant distance (cm), seed bed moisture (% and mV), seedling depth (mm), NDVI, yield (t/ha), 1000 grain weight (g), flowering biomass dry matter (t/ha), harvest biomass fresh weight (g), harvest biomass dry weight (g), harvest seed weight (g), harvest indexData collection and assessment:The paddock was sown on 10/05/2018 with the conventional cone seeder, and on 17/05/2018 with the precision planter. Initial soil moisture was measured at infurrow and midrow locations on 11/05/2018 and again on 17/05/2018. Plant establishment counts were recorded 6 times between 23/05/2018 and 22/06/2018, with plant numbers measured in 3m marks across two rows. Seedbed moisture was measured 5 times between 23/05/2018 and 22/06/2018, at infurrow and midrow. Interplant distances were measured for all plots. Seedling depth was recorded in mm for plots sown at the 120 plants/m2 density only. NDVI measurements were made 8 times between 09/07/2018 and 13/09/2018 for each plot. Biomass weight measurements were made at flowering and again at harvest maturity. At harvest, the yield (t/ha) and 1000 grain weight were assessed.

来自南澳Hart地区2018年作物种植试验的数据。该试验对比了在传统播种机和精准播种机下，不同目标种植密度对飓风扁豆种植建立的影响，并考察了两种不同的行距（窄行距22.9厘米和宽行距30.5厘米）。实验由阿德莱德大学主持的UOA1803-009RTX GRDC研究项目执行，实验和数据收集由Hart田间试验小组在当地Hart地区负责管理。文件：Hart Lentil 2018.xlsx
实验设置：由Hart田间试验小组本地管理。试验采用裂区设计，包括4个主区处理（传统播种机：宽行距，传统播种机：窄行距，精准播种机：宽行距，精准播种机：窄行距）和6个副区处理（目标种植密度分别为40、60、80、100、120和140株/平方米）。设计在空间上排列为3个区段，每个区段32行，4次重复，共计96个小区。本试验播种的扁豆品种为飓风扁豆。记录变量：种植数量（株/平方米）、株间距离（厘米）、种子床含水量（百分比和毫伏）、幼苗深度（毫米）、NDVI、产量（吨/公顷）、千粒重（克）、开花生物量干物质（吨/公顷）、收获生物量鲜重（克）、收获生物量干重（克）、收获种子重（克）、收获指数。
数据收集和评估：于2018年5月10日使用传统圆锥式播种机播种，并于5月17日使用精准播种机播种。首次测量土壤含水量是在2018年5月11日和5月17日的沟间和行间位置。从2018年5月23日至6月22日，共记录6次植物建立数量，测量值在两行3米标记处进行。从2018年5月23日至6月22日，种子床含水量测量了5次，在沟间和行间进行。对所有小区测量株间距离。仅在120株/平方米密度下记录幼苗深度。从2018年7月9日至9月13日，对每个小区进行8次NDVI测量。在开花和收获成熟期测量生物量重量。在收获时，评估产量（吨/公顷）和千粒重。