Now showing items 31-40 of 162
Argentine stem weevil damage to high sugar ryegrass infected with AR1 under field conditions
(New Zealand Grassland Association., 2008)
Previous laboratory based studies indicate that, compared to standard cultivars, high sugar grasses (HSG) can have lower endophyte and peramine concentrations and suggest that N fertilisation may result in further reductions in ...
What perennial ryegrass should you sow?
(South Island Dairy Event (SIDE), 2011-06)
Choosing the right perennial ryegrass or combination of perennial ryegrasses is an important decision to increase the production, persistence and quality of pasture harvested on your farm. Perennial ryegrasses can be ...
Grazing behaviour, dry matter intake and urination patterns of dairy cows offered kale or fodder beet in winter
The opportunity to reduce nitrogen (N) losses to the environment from wintering systems for dairy cows may arise from a combination of restricted grazing systems and feeding low N diets to reduce N intake. Lack of information ...
Current status of biological control of Cirsium arvense in New Zealand
Cirsium arvense (L.) Scop. (Californian, Canada or creeping thistle) is an exotic perennial herb that successfully established in New Zealand (NZ) approximately 130 years ago, and is now considered one of the worst invasive ...
Milk yield and urinary-nitrogen excretion of dairy cows grazing forb pasture mixtures designed to reduce nitrogen leaching
The effect of including a mixture of forbs in a standard perennial ryegrass-white clover pasture, with or without Italian ryegrass was investigated in a two-period grazing study comparing urinary nitrogen (N) excretion and ...
Can a winter-sown catch crop reduce nitrate leaching losses after winter forage grazing?
(Fertilizer and Lime Research Centre, 2016)
Direct grazing of winter forage crops to feed non-lactating, pregnant dairy cows prior to calving is a common management practice in the New Zealand South Island. However, the high crop yields per hectare grazed, combined ...
The effect of optimum vs deficit irrigation on plant nitrogen uptake and nitrate leaching loss from soil
(Fertilizer and Lime Research Centre, Massey University, 2016)
Nitrate (NO₃⁻) leaching, associated with urine nitrogen (N) deposition during grazing is recognised as a significant environmental problem. In this study it was hypothesised that optimum irrigation could increase plant ...
Whole-farm modelling using different grazing-management strategies with diverse pastures within an irrigated dairy-farm system
(New Zealand Society of Animal Production (Inc), 2018)
The objective of this study was to assess the effect of diverse pasture mixtures and grazing management on profitability of Canterbury dairy farms using a commercial modelling tool, Farmax Dairy Pro. Two years of pasture ...
Forage responses to lime and nitrogen fertiliser on land converted from pine forest to dryland pasture in Canterbury
(New Zealand Grassland Association., 2007)
A field trial was established to quantify the impacts of lime (0, 2.5, 5 and 10 t/ha) and nitrogen (N) fertiliser (0, 50, 100, 200 and 400 kg N/ha/year) addition on the dry matter (DM) production of a crop sequence of ...
Can salt increase oversowing success on south facing hill country?
(Lincoln University, Agriculture Group., 2006-11)
Salt application is a tool for pasture management and improvement in the hill/high country that could be used together with other methods such as herbicides, seeding, sub-division, grazing management and fertiliser.