Economic benefits of conservation tillage in New Zealand II. Pastoral sheep farms

1983 ◽  
Vol 3 (4) ◽  
pp. 357-365 ◽  
Author(s):  
Gerald A.G. Frengley
1996 ◽  
Vol 76 (3) ◽  
pp. 411-416 ◽  
Author(s):  
E. G. Smith ◽  
R. E. Blackshaw ◽  
C. W. Lindwall ◽  
F. J. Larney ◽  
T. L. Peters

The use of conservation tillage management in fallow cropping systems reduces soil erosion and improves soil quality. The economic benefits of these alternate tillage methods are less certain. This study examined the economic returns from reduced tillage methods on fallow using yield and input data from two experiments at the Agriculture and Agri-Food Canada Research Centre at Lethbridge, Alberta. One experiment was long-term study initiated in 1955 with eight treatments, the second was a 5-yr study with 15 treatments. Results from the 5-yr study indicated no difference in net returns between conventional and reduced tillage fallow systems. In contras, the long-term study net returns were highest for tilled systems and lowest for herbicide-only systems. The long-term study had a build-up of weeds that are difficult to control with herbicides alone. The resulting lower average yield and higher herbicide costs of the herbicide-only treatments in the long-term study accounted for most of the contrasting results between the two experiments. An economic evaluation of tillage practices requires the entire system to be evaluated, not just the tillage component. Key words: Economics, tillage, reduced tillage, conservation practices, weed control


2020 ◽  
Author(s):  
Jocelyn Cranefield ◽  
O Robertson ◽  
G Oliver

The open government paradigm relies on the provision and reuse of open government data (OGD) to improve transparency and create new sources of value. This study aims to progress understanding of OGD beyond a theoretical commentary by exploring the perceived sources of value of mashups (online services that combine diverse OGD), and to examine issues that impact on, and facilitate, the delivery of this value from an 'insider' perspective. Based on open-ended interviews with 17 individuals actively involved in OGD application design, use, and advocacy in New Zealand (ranked fourth in the 2013 Global Open Data Barometer) nine key sources of value were identified: Ease of discovery, improved data quality, bringing knowledge into relevant contexts, economic benefits, social benefits, cost reduction and efficiencies, predictive value, transparency, and ability to explore and play. Twelve barriers to delivering this value were found, ranging from change-related issues to problems relating to sustainability. Six facilitators were identified as helping to overcome these barriers and realise the value of OGD.


Zootaxa ◽  
2008 ◽  
Vol 1779 (1) ◽  
pp. 33 ◽  
Author(s):  
A. C. EYLES ◽  
T. MARAIS ◽  
S. GEORGE

Macrolophus pygmaeus (Rambur, 1839) is recorded for the first time in New Zealand. Viable adult M. pygmaeus were collected in the field in Auckland, in 2007, indicating that the species had already established itself in this country. The biology of M. pygmaeus is briefly discussed in the light of its potential economic benefits to growers of vegetable crops affected by whitefly (Aleyrodidae). The adults and nymphs are described and illustrated. An updated key to the genera and species of Bryocorinae in New Zealand is provided.


2020 ◽  
Author(s):  
Jocelyn Cranefield ◽  
O Robertson ◽  
G Oliver

The open government paradigm relies on the provision and reuse of open government data (OGD) to improve transparency and create new sources of value. This study aims to progress understanding of OGD beyond a theoretical commentary by exploring the perceived sources of value of mashups (online services that combine diverse OGD), and to examine issues that impact on, and facilitate, the delivery of this value from an 'insider' perspective. Based on open-ended interviews with 17 individuals actively involved in OGD application design, use, and advocacy in New Zealand (ranked fourth in the 2013 Global Open Data Barometer) nine key sources of value were identified: Ease of discovery, improved data quality, bringing knowledge into relevant contexts, economic benefits, social benefits, cost reduction and efficiencies, predictive value, transparency, and ability to explore and play. Twelve barriers to delivering this value were found, ranging from change-related issues to problems relating to sustainability. Six facilitators were identified as helping to overcome these barriers and realise the value of OGD.


2008 ◽  
Vol 8 (4) ◽  
pp. 46-50
Author(s):  
gareth renowden

Chinese truffles, close relatives of the French black truffle, arrived on world markets in the middle of the 1990s. Available in quantity at low prices, they were eagerly snapped up by traders facing a steep decline in European production. Despite having less intense flavour, they have captured a large part of world trade in truffles, and their harvest has brought significant economic benefits to rural communities in Sichuan and Yunnan provinces of southern China. In parallel, the development of artificial truffle flavouring has led to an explosion in ersatz ““truffle”” products, and the practice in many restaurants of boosting the flavour of inferior truffles with artificial truffle oils. However, recent expansion of truffle growing in North America and the arrival of southern hemisphere producers from New Zealand and Australia is extending both the quantity of truffle available and the season.


Author(s):  
M.F. Hawke ◽  
A.G. Gillingham ◽  
M. Gray ◽  
M. Dean

Shelterbelts are a feature of the New Zealand landscape and in the dryland East Coast regions of the North Island, are seen in a diversity of planting patterns, species and silvicultural practices. To date, their economic benefits have not been assessed, partly because of the difficulty in evaluating the many interrelated pasture, soil, animal and forestry factors. Recent shelterbelt research in New Zealand has been conducted as a collaborative approach by AgResearch, Forest Research and Hort Research. Results of pasture, soil and tree measurements in the East Coast region indicate that shelterbelts, however managed, do not significantly increase pasture production in the sheltered zone. The competitive effects of trees reduce soil moisture in zones close to the shelter, which also encourages the accumulation of dung and urine nutrients in this zone by animals seeking protection. The modification in resting patterns as a result of shelter may be reflected in improved animal welfare and production but this was not measured. The value of timber from shelterbelts on the East Coast indicates that they have a role in diversifying farming income and offering a modified land use, which will help to sustain productive farming practices. Keywords: livestock, log value, pasture production, Pinus radiata, shelter, shelterbelts, soil moisture, soil nutrients, wood yields


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