Impact of Defoliation Intensity on Net Primary Productivity of Zoysia japonica-dominated Pasture under Grazing Conditions

Nakagami, Koji; Sakanoue, Seiichi; Takahashi, Shin

doi:10.6090/jarq.42.223

Cited by 2 publications

(3 citation statements)

References 10 publications

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“…Zoysia japonica is the Zoysia species most widely used as a turfgrass, mainly in Asia, North and South America, and Australia, and numerous commercial cultivars of Z. japonica have been developed in these regions. It also has a long history of use as a grazed pasture grass in Japan for horses and, more recently, cattle and Japanese deer (Hirayoshi and Matumura, 1957; Suganuma, 1966; Itow, 1970, 1974; Saijoh and Yoshida, 1976; Shôji, 1983; Miyazaki et al, 1984; Yamada and Fukuoka, 1984; Ishida 1990; Nakagami et al, 2008; Kawano et al, 2009).…”

Section: Taxonomy and Originmentioning

confidence: 99%

Ecological Implications of Zoysia Species, Distribution, and Adaptation for Management and Use of Zoysiagrasses

Loch

Ebina

Choi

et al. 2017

Intl Turfgrass Soc Res J

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The genus Zoysia Willd. comprises ±10 recognized species indigenous to the western Pacific Rim and Indian Ocean, which are collectively called “zoysiagrasses.” Three species—Z. japonica Steud., Z. matrella (L.) Merr., and Z. pacifica (Goudswaard) M. Hotta & Kuroki (previously referred to as Z. tenuifolia)—plus interspecific hybrids have a long history of use as warm‐season perennial turf and ornamental grasses in many countries. Recently, cultivars from two other species, Z. macrantha Desv. and Z. sinica Hance, have also been developed. Breeders are currently exploring the potential to incorporate attributes from these and other Zoysia species into future zoysiagrass cultivars through hybridization. The attributes of Zoysia turfgrass cultivars—their strengths and limitations—can be related back to the species and germplasm from which they have been derived, and which (together with growth and development characteristics unique to the zoysiagrasses) ultimately determine their adaptation, use, and management. Differences in temperature, shade, drought, salinity, and traffic tolerance, as well as differences in nutritional and mowing requirements among zoysiagrasses, plus comparisons with Cynodon spp. turfgrasses, are highlighted.

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Section: Taxonomy and Originmentioning

confidence: 99%

Ecological Implications of Zoysia Species, Distribution, and Adaptation for Management and Use of Zoysiagrasses

Loch

Ebina

Choi

et al. 2017

Intl Turfgrass Soc Res J

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“…2005; Kitagawa et al. 2007; Nakagami et al. 2008), despite its low productivity compared with sown pastures with improved herbage species.…”

Section: Introductionmentioning

confidence: 99%

“…is unique among Japanese native grasses owing to its adaptation for grazing. Because of its sustainability without fertilizer (Kano et al 1984), Z. japonica-dominated pastures have been reevaluated for low-cost and labor-saving beef calf production in Japan (Hayasaka et al 2005;Kitagawa et al 2007;Nakagami et al 2008), despite its low productivity compared with sown pastures with improved herbage species. Because the production in unfertilized pastures depends mainly on nutrient cycling, it is necessary to consider the efficiency of nutrient cycling for the appropriate management of Z. japonica pastures.…”

Section: Introductionmentioning

confidence: 99%

Estimation of nitrogen release from decomposing Zoysia japonica litter using its relationship to mass loss

2010

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To estimate nitrogen release through the decomposition of Zoysia japonica litter, we conducted 2‐year litter‐bag measurements for dry matter loss and nitrogen dynamics of decomposing litter on the soil surface of a Z. japonica pasture in central Japan, and modeled the nitrogen release from the litter. The litter mass decreased to approximately 50% in the first year with a steep decline in summer and a gradual decline in winter. The nitrogen concentration of the litter increased with incubation time, while the amount of nitrogen in the litter changed minimally for more than one year and then gradually declined to approximately 60% of the initial amount at the end of the incubation. The model for estimating nitrogen release from the litter was established as a cubic relationship to the litter mass, because nitrogen concentration of the litter was well expressed as a quadratic function of the litter mass loss. The litter mass loss was estimated using a negative exponential equation in which the decomposition rate increased linearly with air temperature. The model can be used as a submodel of an integrated model for simulating nitrogen cycling in Z. japonica pastures in an area with sufficient rainfall.

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Impact of Defoliation Intensity on Net Primary Productivity of Zoysia japonica-dominated Pasture under Grazing Conditions

Cited by 2 publications

References 10 publications

Ecological Implications of Zoysia Species, Distribution, and Adaptation for Management and Use of Zoysiagrasses

Ecological Implications of Zoysia Species, Distribution, and Adaptation for Management and Use of Zoysiagrasses

Estimation of nitrogen release from decomposing Zoysia japonica litter using its relationship to mass loss

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