Switchgrass Seed Growing Experiences at Nott Farms reap-canada.com - - PowerPoint PPT Presentation

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Jun 01, 2023 438 likes •546 views

Switchgrass Seed Growing Experiences at Nott Farms reap-canada.com reap-canada.com reap-canada.com WEED CONTROL Need Good Establishment Emphasis on pre-emergent herbicides to reduce crop damage and get better kill Post emerge

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Switchgrass Seed Growing Experiences at Nott Farms

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WEED CONTROL

Need Good Establishment
Emphasis on pre-emergent herbicides to

reduce crop damage and get better kill

Post emerge herbicides is a back-up plan as

necessary

Biggest concern is giant foxtail

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Nitrogen Application

~75 kg N/ha (50% Urea and ESN) ~15 cm (6”) height Aim is to feed the crop as needed and minimize losses not feed the annual weeds

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RC Big Rock at Nott Farms https://www.youtube.com/watch?v=hWnwc OUNk-k

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Cornell University Long Term Biomass Trial 2010-2018

WSG Mixtures and Monocultures, Ithaca, NY, photo June 1/2018 RC Big Rock highest yielding SG at 14.8t/ha over final 5 yrs

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Maturity of Switchgrasses

RC Sundance * RC Tecumseh RC Chippewa * RC Big Rock 135 days 141 days 146 days 155 Days

I-------------------I----------------------I---**----------------I------------------------I 135 140 145 150 155 (# Days to seed maturity from May 1)

*New selections grown by Nott Farms ** Cave-in-rock is 146 days (Sept 23rd seed maturity)

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◼ Plus de 50 kg N/ha possibilite de la verse

RC Big Rock II

Tall with erect canopy
Exceptional seedling vigor
Low lodging

(seed available fall 2020)

Cave –in-Rock (1958 selection)