Michigan yield contest data

A Summary of InformationCollected from the Michigan Soybean Yield Contest (2006 – 2010) Mike Staton, MSU Extension CURE Soybean Educator

2006 - 2010 Michigan Soybean Yield Contest Information about management practices was collected and summarized from 166 entries The summarized information has not been subjected to statistical scrutiny General trends and observations are still valuable and worth considering

Evaluating the 2006-2010 Data Entered data from planting and harvest forms into an Excel spreadsheet Sorted the data by yield and averaged the responses of the top 5 non-irrigated entries and the bottom 5 non-irrigated entries from each year Compared the management practices of the top 25 non-irrigated entries (5 entries per year X 5 years) to the bottom 25 non-irrigated entries

Average Yield 2006-2010 100 80Average Yield 60 40 68.7 42.2 20 0 Top 25 Bottom 25 Entries Grouped by Yield

Soil pH 10 9 8 7Soil pH 6 5 4 6.6 6.8 3 2 1 0 Top 25 Bottom 25 Entries Grouped by Yield

Entries Where Tillage Was Performed 100 80Percent Tilled 60 40 84% 48% 20 0 Top 25 Bottom 25 Entries Grouped by Yield

Average Planting Date 30 25 20May 15 10 May 17 5 May 4 0 Top 25 Bottom 25 Entries Grouped by Yield

Entries Planted by May 8 100 80Percent Planted 60 40 20 72% 32% 0 Top 25 Bottom 25 Entries Grouped by Yield

Entries Planted with 15 inch Row Planters 100Percent in 15” Rows 80 60 40 20 0 Top 25 Bottom 25 Entries Grouped by Yield

Average Planting Population of Entries 200,000 180,000Plant Population 160,000 140,000 168,880 173,017 120,000 100,000 Top 25 Bottom 25 Entries Grouped by Yield

Inoculated Entries 100Percent Inoculated 80 60 40 64% 52% 20 0 Top 25 Bottom 25 Entries Grouped by Yield

Entries Having Cyst Nematodes 100 Dont Know 90Percent Reported 80 No 70 Yes 60 50 40 30 20 10 0 Top 25 Bottom 25 Entries Grouped by Yield

Entries Receiving Foliar Applications 100 Insecticide 90Percent Reported 80 Fungicide 70 Fertilizer 60 50 40 30 20 10 0 Top 25 Bottom 25 Entries Grouped by Yield

Average Harvest Date 30 25 20October 15 10 Oct 14 5 Oct 10 0 Top 25 Bottom 25 Entries Grouped by Yield

Average Pods Per Plants 60Average Pods/Plant 50 40 30 48 38 20 10 0 Top 25 Bottom 25 Entries Grouped by Yield

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Michigan yield contest data

by sheppardjm on Oct 20, 2011

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