Overseeding Unimproved Warm-Season Pasture with Cool- and Warm-Season Legumes to Enhance Forage Productivity

Bartholomew, P. W.; Williams, R. D.

doi:10.1080/10440040903482407

Cited by 6 publications

(3 citation statements)

References 21 publications

(32 reference statements)

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“…As with rangelands, LTAR's pastureland sites are evaluating strategies to extend grazing periods and to improve forage yield and nutritional quality during periods of low productivity. Strategies range from using stockpiled forages in the dormant season (Riesterer et al, 2000) to interseeding new species into established pastures (Bartholomew and Williams, 2010).…”

Section: Pasturelandsmentioning

confidence: 99%

Advancing the Sustainability of US Agriculture through Long‐Term Research

Kleinman

Spiegal²,

Rigby

et al. 2018

J of Env Quality

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Agriculture in the United States must respond to escalating demands for productivity and efficiency, as well as pressures to improve its stewardship of natural resources. Growing global population and changing diets, combined with a greater societal awareness of agriculture's role in delivering ecosystem services beyond food, feed, fiber, and energy production, require a comprehensive perspective on where and how US agriculture can be sustainably intensified, that is, made more productive without exacerbating local and off‐site environmental concerns. The USDA's Long‐Term Agroecosystem Research (LTAR) network is composed of 18 locations distributed across the contiguous United States working together to integrate national and local agricultural priorities and advance the sustainable intensification of US agriculture. We explore here the concept of sustainable intensification as a framework for defining strategies to enhance production, environmental, and rural prosperity outcomes from agricultural systems. We also elucidate the diversity of factors that have shaped the past and present conditions of cropland, rangeland, and pastureland agroecosystems represented by the LTAR network and identify priorities for research in the areas of production, resource conservation and environmental quality, and rural prosperity. Ultimately, integrated long‐term research on sustainable intensification at the national scale is critical to developing practices and programs that can anticipate and address challenges before they become crises. Core Ideas The LTAR network was established to enhance the sustainability of US agriculture. The LTAR “common experiment” compares business as usual with aspirational management. LTAR sites contribute research observations to the network's database. LTAR network research will support sustainable intensification strategies.

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Section: Pasturelandsmentioning

confidence: 99%

Advancing the Sustainability of US Agriculture through Long‐Term Research

Kleinman

Spiegal²,

Rigby

et al. 2018

J of Env Quality

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“…), East Hungary (Török et al . ), Central‐South USA (Bartholomew and Williams ) and Central‐North USA (Martin and Wilsey ).…”

Section: Discussionmentioning

confidence: 99%

Early plant community dynamics following overseeding for the rehabilitation of a Mediterranean silvopastoral system

et al. 2016

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The sowing of selected seeds is often applied as post‐fire rehabilitation practice in Mediterranean silvopastoral systems. Often, the topography of these silvopastoral systems is sloppy and irregular, requiring low input and easy pasture rehabilitation practices, such as no tillage, low seed and fertilizer rates. In this paper, we studied the vegetation changes over 4 years, after a low‐input overseeding (broadcasting) of non‐native pasture species, within a post‐fire rehabilitation program of a silvopastoral system in Sardinia (Italy). The main objective was to assess the effect of overseeding on the early plant community dynamics and on the relationship between topography, soil pH, and soil nitrogen content on the spatial and temporal dynamics of the grassland composition. Understorey vegetation was classified into nine “functional classes”, three corresponding to the oversown species (subclovers, burr medic and annual ryegrass) and six belonging to the native community, i.e. grasses, legumes, Cistus spp., spiny Carduaceae, spiny Rubus spp. and other forbs. The oversown species showed a rapid establishment, contributing from 30 up to 50% to the floristic composition of the oversown pasture. The overseeding reduced the abundance of post‐fire invasive shrubs and spiny forbs by up to about 70% compared to the unsown pasture. The spatial patterns of the functional classes were only weakly influenced by nitrogen content, with a higher impact on introduced species in the first 2 years after overseeding, while the topographic variables had a desultory influence over the 4 years. Overseeding proved to be effective for the rehabilitation and improvement of semiarid Mediterranean grasslands without substantially constraining the ecological succession of floristic composition towards the native vegetation.

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“…Korean lespedeza (Kummerowia stipulacea [Maxim.] Makino) is recognized as a useful summer annual legume forage that has the capacity to self-reseed [6] [7], and it has been used with some success in the SGP as a relay crop following a winter cereal [8]. Verano stylo (Stylosanthes hamata [L.] Taub.)…”

Section: Introductionmentioning

confidence: 99%

Self-Seeding Warm-Season Legumes for Low-Input Forage Production in the Southern Great Plains of the USA

Bartholomew¹

2014

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In the southern Great Plains (SGP) of the USA warm-season legumes can improve the quality of available forage in pasture systems based on perennial warm-season grasses. Legumes that persist through self-seeding may be especially useful in low-input systems where resources for annual replanting are limited. The productivity and capacity for self-seeding of Korean lespedeza (Kummerowia stipulacea [Maxim.] Makino) and Verano stylo (Stylosanthes hamata [L.] Taub.) were tested in controlled environment and in field plots in the SGP. At similar levels of accumulated temperature, germination of Korean lespedeza was unaffected by day/night temperature regimes between 15/15˚C and 30/15˚C. In contrast, at similar accumulated temperatures, germination of Verano stylo increased with higher daytime maximum temperature up to 30˚C. Seedling growth of both species was reduced by shading, in proportion to the reduction in photosynthetic flux density. Growth of Korean lespedeza up to five weeks after emergence was greatest under a 22.5/7.5˚C temperature regime but that of Verano stylo was greatest at 30/15˚C. In the field Korean lespedeza was a prolific seeder and productive of forage though susceptible to significant loss of leaf material in late summer and fall. Verano stylo did not reseed effectively and was not a reliable forage producer.

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Overseeding Unimproved Warm-Season Pasture with Cool- and Warm-Season Legumes to Enhance Forage Productivity

Cited by 6 publications

References 21 publications

Advancing the Sustainability of US Agriculture through Long‐Term Research

Advancing the Sustainability of US Agriculture through Long‐Term Research

Early plant community dynamics following overseeding for the rehabilitation of a Mediterranean silvopastoral system

Self-Seeding Warm-Season Legumes for Low-Input Forage Production in the Southern Great Plains of the USA

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