New Zealand Journal of Agricultural Research 1998

Volume 41/Number 1/March 1998

Agronomy

• Determination of tiller and root appearance in perennial ryegrass (Lolium perenne ) swards by observation of the tiller axis, and potential application in mechanistic modelling
• Tiller axis observations for perennial ryegrass (Lolium perenne) and tall fescue (Festuca arundinacea ): number of active phytomers, probability of tiller appearance, and frequency of root appearance per phytomer for three cutting heights
• Influence of the timing and duration of pastoral fallowing and nitrogen fertiliser on pasture and white clover (Trifolium repens) growth in hill country
• Estimating grassland yields using remote sensing and GIS technologies in China
• Influence of the ryegrass endophyte (Neotyphodium lolii) in a cool moist environment. I. Pasture production
• Growth in grazed pastures of white clover breeding lines selected for extremes of leaf size, internode length, and nodal branching
• Establishment response of 12 legumes to nitrogen fertiliser rate and placement when direct drilled into Hieracium-infested, montane tussock grasslands
• Effect of lime and form of superphosphate on productivity of dryland pastures
• Effects and interactions of P fertiliser forms and rates of lime on a clover/ryegrass sward

  Animal science

• A comparison of growth, carcass, and meat characteristics of Jersey- and Friesian-cross heifers in a once-bred heifer system of beef production
• Medullation and average fibre diameter vary independently in the wool of Romney sheep

  Entomology

• Effect of potato mirid (Calocoris norvegicus) on white clover seed production in small cages

  Soil science

• The fate of potassium, calcium, and magnesium in simulated urine patches on irrigated dairy pasture soil

  Weed science

• Influence of phenology, defoliation, and Sclerotinia sclerotiorum on regrowth potential of Ranunculus acris
• Book reviews

Volume 41/Number 2/June 1998

Agronomy

• Chemical composition of some Iberian Mediterranean leguminous shrubs potentially useful for forage in seasonally dry areas
• Quantifying different causes of leaf and tiller death in grazed perennial ryegrass swards
• Effect of drill type on establishment of overdrilled lucerne
• Estimating the agronomic impact of white clover mosaic virus on white clover performance in the North Island of New Zealand
• An inoculant Rhizobium strain for improved establishment and growth of hexaploid Caucasian clover (Trifolium ambiguum)
• Influence of the ryegrass endophyte (Neotyphodium lolii) in a cool-moist environment II. Sheep production
• Influence of the ryegrass endophyte (Neotyphodium lolii) in a cool-moist environment III. Interaction with white clover
• Influence of the ryegrass endophyte (Neotyphodium lolii) in a cool moist environment IV. Plant parasitic nematodes
• Influence of the endophyte (Neotyphodium lolii) on morphology, physiology, and alkaloid synthesis of perennial ryegrass during high temperature and water stress

  Animal science

• Year effects on the carcass composition of lambs slaughtered over a 10 year period
• Design and application of a cusum quality control chart suitable for monitoring effects on ultimate muscle pH

  Soil science

• Soil acidification through carbon cycling in legumes: a pot experiment examining the contributions from white clover, lotus, caucasian clover, and lucerne
• Uptake of moisture and nutrients by Hieracium pilosella and effects on soil in a dry sub-humid grassland
• Nitrate leaching from dairy shed effluent and ammonium fertiliser applied to a free-draining pasture soil under spray or flood irrigation
• Impact of cattle treading on hill land : 1. Soil damage patterns and pasture status
• Impact of cattle treading on hill land : 2. Soil physical properties and contaminant runoff

  Weed science

• Relative intra-species competitive ability of nodding thistle biotypes with varying resistance to the herbicide 2,4-D

Volume 41/Number 3/September 1998

Agronomy

• The relationship between herbage mass and pasture accumulation rate in winter
• Phosphorus absorption capacity of Lotus corniculatus and Festuca arundinacea during sward establishment
• Pasture yield responses to sulphur fertilisers in relation to nutrient ratios in white clover

  Animal science

• Use of carcass density for determining carcass composition in beef cattle
• Variability in marbling in Angus steers and an evaluation of subjective marbling assessment
• Genetics of susceptibility to facial eczema in Friesian and Jersey cattle
• Effects of grazing sequence and condensed tannins on ingestive behaviour, herbage intake, and performance of lambs grazing Yorkshire fog pasture
• Patterns of change with growth for muscularity and other composition characteristics of Southdown rams selected for high and low backfat depth
• Effect of increasing pasture copper concentrations on the copper status of grazing Romney sheep
• Growth hormone secretion and pituitary gland weight in suckling lambs from genetically lean and fat sheep
• The effect of feed enzyme supplementation on the performance of meat-chickens fed enzyme-responsive barley- and wheat/maize-based diets

  Economics

• Returns to investment in on-farm research: a case study of cover comb technology

  Fertilisers

• Comparison of six phosphate rocks and single superphosphate as phosphate fertilisers for clover-based pasture

  Soil science

• Effect of different forage plants on denitrification potential of Horotiu soil

  Waste products

• Ammonium removal from wastewaters using natural New Zealand zeolites

  Bibliography

• Bibliography of New Zealand research on herbage seed production 1988-1997

Volume 41/Number 4/December 1998

Agronomy

• Establishment and growth of grasses overdrilled into clover-developed, montane tussock grasslands
• Growth and persistence of perennial and hybrid ryegrasses when grazed by dairy cows in the central Waikato region of New Zealand
• Balanced and adequate nutrition of phosphorus and sulphur in pasture
• Investigation into the mechanisms causing lime responses in a grass/clover pasture on a clay loam soil

  Animal science

• The effect of short-term grain feeding on liveweight gain and beef quality
• Relationship between body condition score and body composition in dairy cows
• Effect of cattle grazing strategies and pasture species on internal parasites of sheep
• A body condition score system and its use for farmed red deer hinds
• A body condition scoring system for layer hens

  Methodology

• Should sequential designs be used for comparative experiments on animals?
• Analysis of differential equation models in biology: a case study for clover meristem populations
• User satisfaction with machine learning as a data analysis method in agricultural research

  Microbiology

• Biodiversity of rhizobia nodulating Genista monspessulana and Genista linifolia in Spain
• Occurrence of the fungal endophyte Neotyphodium coenophialum in leaf blades of tall fescue and implications for stock health

  Soil science

• An investigation of localised soil heterogeneities on solute transport using a multisegement percolation system
• Spatial variability of organic carbon in a tussock grassland, Manorburn, Central Otago, New Zealand

  Review article

• Effects of forage- and grain-based feeding systems on beef quality: A review

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