Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed Stands

Tolerance to frequent defoliations is critical for native warm-season grasses managed for forage and wildlife habitat. Yield response of big bluestem (Andropogon gerardii), indiangrass (Sorghastrum nutans), and little bluestem (Schizachyrium scoparium) to treatments (30-, 40-, 60-, 90- or 120-d har...

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Main Authors: Vitalis W. Temu, Brian J. Rude, Brian S. Baldwin
Format: Article
Language:English
Published: MDPI AG 2014-02-01
Series:Agronomy
Subjects:
Online Access:http://www.mdpi.com/2073-4395/4/1/90
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author Vitalis W. Temu
Brian J. Rude
Brian S. Baldwin
author_facet Vitalis W. Temu
Brian J. Rude
Brian S. Baldwin
author_sort Vitalis W. Temu
collection DOAJ
description Tolerance to frequent defoliations is critical for native warm-season grasses managed for forage and wildlife habitat. Yield response of big bluestem (Andropogon gerardii), indiangrass (Sorghastrum nutans), and little bluestem (Schizachyrium scoparium) to treatments (30-, 40-, 60-, 90- or 120-d harvest intervals) and durations were assessed on early-succession mixed stands. Over three years, phased harvestings were initiated in May, on sets of randomized plots, in five replications to produce one-, two-, and three-year old stands, by the third year. Each plot had marked indiangrass and big bluestem plants which were hand-clipped on harvest-days before whole-plot harvesting. Species yields were greater in first- than second-year plots but not affected by treatments. June–September yields in 2008 were greatest for the 30-d, and more in the first- (8472 kg ha−1) than second-year (7627 kg ha−1) plots. In 2009, yields were also greater in first- than second-year plots but without treatment effects. Recovery yields showed no treatment effect, but were about 67% less for second- compared to first-year plots and much less than plots never harvested before. Data suggest that harvesting similar mixed native warm-season grass stands at 30- to 40-d intervals may provide good hay yields without compromising post-season stand recovery for multiple uses.
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spelling doaj.art-d641465ac1e14cd1be9f2e3bb33e0e752022-12-21T22:23:54ZengMDPI AGAgronomy2073-43952014-02-01419010710.3390/agronomy4010090agronomy4010090Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed StandsVitalis W. Temu0Brian J. Rude1Brian S. Baldwin2Agricultural Research Station, Virginia State University, Petersburg, VA 23806, USAPlant and Soil Sciences Department & Animal and Dairy Science Department, Mississippi State University, Mississippi State, MS 39762, USAPlant and Soil Sciences Department & Animal and Dairy Science Department, Mississippi State University, Mississippi State, MS 39762, USATolerance to frequent defoliations is critical for native warm-season grasses managed for forage and wildlife habitat. Yield response of big bluestem (Andropogon gerardii), indiangrass (Sorghastrum nutans), and little bluestem (Schizachyrium scoparium) to treatments (30-, 40-, 60-, 90- or 120-d harvest intervals) and durations were assessed on early-succession mixed stands. Over three years, phased harvestings were initiated in May, on sets of randomized plots, in five replications to produce one-, two-, and three-year old stands, by the third year. Each plot had marked indiangrass and big bluestem plants which were hand-clipped on harvest-days before whole-plot harvesting. Species yields were greater in first- than second-year plots but not affected by treatments. June–September yields in 2008 were greatest for the 30-d, and more in the first- (8472 kg ha−1) than second-year (7627 kg ha−1) plots. In 2009, yields were also greater in first- than second-year plots but without treatment effects. Recovery yields showed no treatment effect, but were about 67% less for second- compared to first-year plots and much less than plots never harvested before. Data suggest that harvesting similar mixed native warm-season grass stands at 30- to 40-d intervals may provide good hay yields without compromising post-season stand recovery for multiple uses.http://www.mdpi.com/2073-4395/4/1/90Native grasswarm-seasonharvestforageyieldbluestemdefoliationrecovery
spellingShingle Vitalis W. Temu
Brian J. Rude
Brian S. Baldwin
Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed Stands
Agronomy
Native grass
warm-season
harvest
forage
yield
bluestem
defoliation
recovery
title Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed Stands
title_full Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed Stands
title_fullStr Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed Stands
title_full_unstemmed Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed Stands
title_short Yield Response of Native Warm-Season Forage Grasses to Harvest Intervals and Durations in Mixed Stands
title_sort yield response of native warm season forage grasses to harvest intervals and durations in mixed stands
topic Native grass
warm-season
harvest
forage
yield
bluestem
defoliation
recovery
url http://www.mdpi.com/2073-4395/4/1/90
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