D. Barker

发表

POPULATION DENSITY AND DISTRIBUTION OF THE NEW ZEALAND INDIGENOUS EARTHWORM OCTOCHAETUS MULTIPORUS (MEGASCOLECIDAE: OLIGOCHAETA) IN HILL PASTURES

J. Springett, A. Mackay, R. Gray, 1998 .

Water Deficit Effects on Osmotic Potential, Cell Wall Elasticity, and Proline in Five Forage Grasses

L. E. Moser, D. Barker, C. Y. Sullivan, 1993 .

Evaluating water exclusion using plastic ground cover in maize at two population densities.

A. J. Lindsey, P. Thomison, D. Barker, 2017 .

Inputs and losses by surface runoff and subsurface leaching for pastures managed by continuous or rotational stocking.

L. Owens, S. Loerch, M. Shipitalo, 2012, Journal of environmental quality.

Alfalfa Responses to Gypsum Application Measured Using Undisturbed Soil Columns

B. Slater, W. Dick, D. Barker, 2017, Plants.

Modeling canopy senescence to calculate soybean maturity date using NDVI

D. Barker, A. Lindsey, J. C. Craft, 2020, Crop Science.

Modifying Effect of Soil Properties on Bio-Accessibility of As and Pb from Human Ingestion of Contaminated Soil

N. Basta, D. Barker, Loryssa Lake, 2021, Geosciences.

Introduction, production, and persistence of five grass species in dry hill country: 8. Summary and conclusions

D. Stevens, D. Barker, D. Scott, 1993 .

Morphological and physiological effects of water deficit and endophyte infection on contrasting tall fescue cultivars

P. Kemp, D. Barker, C. Matthew, 2000 .

The “ root ” to more soil carbon under pastures

M. Dodd, A. Mackay, D. Barker, 2011 .

Influence of the timing and duration of pastoral fallowing and nitrogen fertiliser on pasture and white clover (Trifolium repens) growth in hill country

A. Mackay, J. Hodgson, D. Barker, 1998 .

Root‐Soil Mechanics and Interactions

D. H. Gray, D. Barker, 2013 .

Susceptibility of non-indigenous ascidian species in British Columbia (Canada) to invertebrate predation

T. Therriault, D. Barker, C. M. Pearce, 2009 .

Physiological and Morphological Response of a Drought‐Tolerant Maize Hybrid to Agronomic Management

R. Mullen, P. Thomison, D. Barker, 2018, Agronomy Journal.

Influence of pastoral fallow on plant root growth and soil physical and chemical characteristics in a hill pasture

A. Mackay, J. Hodgson, D. Barker, 1997, Plant and Soil.

Stress and recovery of hill pastures in the North Island of New Zealand

P. Nicholas, P. Kemp, D. Barker, 2004 .

Changes in plant population density, composition and sward structure of a hill pasture during a pastoral fallow

A. Mackay, J. Hodgson, D. Barker, 1997 .

Root distribution in a low fertility hill country sward grazed by sheep

A. Mackay, D. Barker, D. Zhang, 1988 .

Forage and Biomass Planting

T. Butler, D. Barker, J. MacAdam, 2012 .

Plant Species Diversity and Management of Temperate Forage and Grazing Land Ecosystems

M. Sanderson, R. Skinner, G. Edwards, 2004 .

Physiological and morphological responses to elevated CO2 and a soil moisture deficit of temperate pasture species growing in an established plant community

P. Newton, H. Clark, D. Barker, 1999 .

Growth and Management of Endophytic Grasses in Pastoral Agfuculture

D. Barker, David E. Hurne, 2008 .

Effect of Growth Conditions on Alkaloid Concentrations in Perennial Ryegrass Naturally Infected with Endophyte

H. S. Easton, D. Barker, G. Lane, 1997 .

Vegetation diversity, growth, quality and decomposition in managed grasslands

Kenneth J. Moore, K. Moore, D. Barker, 2004 .

Agrobacterium rhizogenes–induced Altered Morphology and Physiology in Rubber Dandelion after Genetic Transformation

K. Cornish, D. Barker, Yingxiao Zhang, 2023, Journal of the American Society for Horticultural Science.

Fertilization and Nutrient Management

S. Culman, D. Barker, 2020, Forages.

Effect of cattle and sheep treading on surface configuration of a sedimentary hill soil

K. Betteridge, A. Mackay, T. Shepherd, 1999 .

Integrating Winter Annual Forages into a No-Till Corn Silage System

R. Dick, R. M. Sulc, D. Barker, 2009 .

Effect of conserving pasture as silage on the productivity and profitability of grazing steers

D. Barker, F. Scott, K. Greathead, 1989 .

MICROENCAPSULATION OF PROBIOTICS USING KIWIFRUIT POLYSACCHARIDE AND ALGINATE CHITOSAN

S. Parkar, D. Barker, J. Sharpe, 2007 .

Pasture legume establishment from oversowing in drought-prone hill country

P. Kemp, D. Barker, M. Choudhary, 1993 .

Relationships of Forage Nutritive Value to Cool‐Season Grass Canopy Characteristics

R. M. Sulc, D. Barker, R. Nave, 2013 .

Reconciling the Plant-Animal Interface: Convergence of Optimal Herbage Accumulation and Intake Rate by Sheep Grazing Tall Fescue

Gilles Lemaire, Reuben Mark Sulc, Leonardo Silvestri Szymczak, 2021 .

Changes in Forage Nutritive Value among Vertical Strata of a Cool‐Season Grass Canopy

N. St-Pierre, R. M. Sulc, D. Barker, 2014 .

Analysis of Herbage Mass and Herbage Accumulation Rate Using Gompertz Equations

R. M. Sulc, K. Albrecht, D. Barker, 2010 .

'GRASSLANDS WANA'COCKSFOOT- AN IMPROVED GRASS SUITABLE FOR HILL COUNTRY

D. Barker, J. Lancashire, C. Meurk, 1985 .

Introduction, production, and persistence of five grass species in dry hill country: 1. Introduction, site descriptions, and general methods

K. M. Pollock, D. Stevens, D. Barker, 1993 .

Are there benefits of pasture species diversity in hill country

M. Dodd, M. E. Wedderburn, D. Barker, 2003 .

Effects of water deficit on Mediterranean and temperate cultivars of tall fescue

P. Kemp, D. Barker, C. Matthew, 2002 .

Determination of management and topographic influences on the balance between resident and ‘Grasslands Huia’ white clover (Trifolium repens) in an upland pasture using isozyme analysis

P. M. Sanders, D. Barker, M. G. Lambert, 2000, The Journal of Agricultural Science.

Oversowing ‘Grasslands Wana’ cocksfoot, ‘Grasslands Maru’ phalaris, and ‘Grasslands Tahora’ white clover in hill country at varying rates of paraquat and glyphosate

D. Chapman, D. Barker, C. Anderson, 1988 .

Soil surface moisture measurement and its influence on the establishment of three oversown legume species

P. Kemp, D. Barker, M. Choudhary, 1996, The Journal of Agricultural Science.

Plant diversity effects on herbage production and compositional changes in New Zealand hill country pastures

M. Dodd, M. E. Wedderburn, D. Barker, 2004 .

Morphogenetic adaptation to defoliation and soil fertility in perennial ryegrass (Lolium perenne)

H. S. Easton, L. Hazard, D. Barker, 2001 .

Seasonal Variation in the Rising Plate Meter Calibration for Forage Mass

R. M. Sulc, D. Barker, R. Nave, 2012 .

Impacts of spatial patterns in pasture on animal grazing behavior, intake, and performance

A. Parsons, D. Chapman, S. Rutter, 2007 .

Redefining the production potential of hill pastures using fertiliser nitrogen

A. Mackay, D. Barker, M. G. Lambert, 2022 .

Natural reseeding of five grass species in summer dry hill country

D. Barker, D. Hume, 1991 .

Introduction, production, and persistence of five grass species in dry hill country: 5. Central Wairarapa, North Island, New Zealand

D. Barker, M. G. Lambert, N. Dymock, 1993 .

Effect of superphosphate, lime, and cocksfoot on summer dry hill country pasture production

W. Parker, A. Mackay, D. Barker, 1990 .

Yield and Nutritive Value of Autumn‐Seeded Winter‐Hardy and Winter‐Sensitive Annual Forages

R. M. Sulc, D. Barker, J. Beuerlein, 2006 .

Predictive Equations for Alfalfa Quality (PEAQ) Can Be Used with Reduced-Lignin Alfalfa

R. M. Sulc, K. Albrecht, D. Barker, 2019, Crop, Forage & Turfgrass Management.

A practical model for predicting soil water deficit in New Zealand pastures

S. J. R. Woodward, R. F. Zyskowski, R. Zyskowski, 2001 .

STRATEGIES FOR DRYLAND PASTURE MANAGEMENT- A REVIEW

D. Barker, A. Chu, 1985 .

SOME EFFECTS OF SPRING DEFOLIATION AND DROUGHT ON PERENNIAL RYEGRASS SWARDS

C. Korte, D. Barker, A. Chu, 1985 .

Effects of pre-sowing herbicide and subsequent sward mass on survival, development, and production of autumn oversown Wana cocksfoot and Tahora white clover seedlings

D. Barker, N. Dymock, 1993 .

Comparing the seasonal productivity of cocksfoot and resident pastures on hill country farms using a system model

D. Barker, 2000 .

‘Grasslands Wana’ cocksfoot persistence and autumn/winter production in hill country, under contrasting managements and micro-topographies

D. Barker, C. Anderson, N. Dymock, 1991 .

Genetic differentiation in white clover (Trifolium repens) populations during 8 years of contrasting phosphorus supply in New Zealand hill country

D. Chapman, M. E. Wedderburn, D. Barker, 2005 .

Long-term effects of pastoral fallowing on the distribution and performance of white clover ( Trifolium repens L . ) in a hill country pasture

A. Mackay, J. Hodgson, D. Barker, 2001 .

Biophysical indicators of sustainability of North Island hill pasture systems

J. Springett, A. Mackay, D. Barker, 2000 .

Negligible Physiological Responses to Water Deficit in Endophyte-Infected and Uninfected Perennial Ryegrass

D. Barker, D. Hume, P. Quigley, 1997 .

The effects of paraquat spraying, seed placement, and pre-germination on the appearance and survival of white clover, cocksfoot, and ryegrass seedlings from spring oversowing in hill country

D. Barker, D. Zhang, 1988 .

Phosphoglucoisomerase-2 allozymes for distinguishing perennial ryegrass cultivars in binary mixtures

P. M. Sanders, D. Barker, G. Wewala, 1989, The Journal of Agricultural Science.

Species Interactions with Quackgrass and Their Effects on Forage Production

E. Regnier, S. Harrison, R. M. Sulc, 2005, Crop Science.

Pinitol accumulation in mature leaves of white clover in response to a water deficit.

R. Bieleski, D. Barker, M. McManus, 2000 .

Contrasting Toxic‐Endophyte Contamination between Endophyte‐Free and Nontoxic‐Endophyte Tall Fescue Pastures

R. M. Sulc, D. Barker, R. Little, 2005 .

Incidence of nodal rooting and plantlet survival in spreading red clovers

J. Hodgson, P. Kemp, D. Barker, 2000 .

Strategic anthelmintic treatment of young cattle during summer in a Mediterranean-type climatic environment

R. K. Mitchell, D. Barker, G. Chaneet, 1981 .

Amino acid composition of TopCross high-oil maize grain

A. B. Geyer, P. Thomison, D. Barker, 2003, Plant Genetic Resources.

The importance of local processes to landscape patterns of grassland vegetation diversity

K. Moore, D. Barker, T. A. White, 2004 .

Depletion of soil water from a Tokomaru silt loam by a perennial ryegrass sward

C. Korte, D. Barker, A. Chu, 1985 .

Quantification of soybean leaf senescence and maturation as impacted by soil- and foliar-applied nitrogen

D. Barker, L. Lindsey, A. Lindsey, 2019, Crops & Soils.