Animal production from pasture with and without conservation for winter feeding

1957 ◽  
Vol 1957 ◽  
pp. 17-31
Author(s):  
D. E. Eyles
Keyword(s):  
Early Summer ◽  
Animal Production ◽  
Late Spring ◽  
Summer Drought ◽  
Constant Number ◽  
Seasonal Growth ◽  
Main Obstacle ◽  
Summer Grazing ◽  
Winter Feeding

The uneven seasonal growth of herbage is the main obstacle to the more efficient utilisation of grassland. There is an abundance of growth in late spring and early summer and a scarcity during a summer drought and in winter. Heavy stocking in spring followed by lighter stocking in summer is a suitable management for fattening sheep and cattle because they can be sold fat from June onwards, but a constant number of livestock has to be maintained throughout the year on many farms which carry breeding or growing animals. On these farms grassland, besides giving summer grazing, is expected to provide the bulk of the fodder for over-wintering. It is doubtful whether the results of grazing experiments which evaluate summer grazing only can be applied to these farms.

Seasonal growth of field layer plants in two stands of Mallee vegetation

1968 ◽  
Vol 16 (3) ◽  
pp. 615 ◽  
Author(s):  
PG Holland
Keyword(s):  
Shoot Growth ◽  
Early Summer ◽  
Late Spring ◽  
Present Climate ◽  
Seasonal Growth ◽  
Growth Rhythm ◽  
Perennial Plants ◽  
Field Layer ◽  
Growth Studies

Changes in the aerial biomass of annual and perennial plants in the field layers of two stands in the mallee vegetation were followed from spring 1964 until spring 1966, and it is shown that these plants reach their maximum aerial biomass in the late spring and early summer respectively at, or before, the time when the shrubs and mallee eucalypts begin their new season's shoot growth. Studies of some Australian grasses and shrubs reveal that their shoot growth rhythms are "out of phase with the present climate", but the results reported here suggest that the various plants in mallee vegetation may conform to more than one growth rhythm.

scholarly journals Productivity and composition of perennial lupin pastures in response to six sowing rates, lime application and lupin type at Glenmore Station, Lake Tekapo

2016 ◽  
Vol 78 ◽  
pp. 139-148
Author(s):  
K.M. Pollock ◽  
D.J. Moot
Keyword(s):  
New Zealand ◽  
Early Summer ◽  
Late Spring ◽  
Lime Application ◽  
Summer Grazing

This study aims to identify the sowing rate necessary to produce lupin dominant and productive pastures in the New Zealand high country under low-moderate fertility, and a regime of late spring/early summer grazing. Blue and Russell lupin were sown on 12 December 2012 at rates of 2, 4, 8, 12, 16 and 32 kg/ha with cocksfoot at 2 kg/ha, and ± 3 t/ha lime. Low lupin sowing rates (

scholarly journals MANAGEMENT OF LATE SPRING-EARLY SUMMER PASTURE SURPLUSES IN HILL COUNTRY

1984 ◽  
pp. 199-206 ◽  
Author(s):  
G.W. Sheath ◽  
R.W. Webby ◽  
W.J. Pengelly
Keyword(s):  
Early Spring ◽  
Early Summer ◽  
Late Spring ◽  
First Year ◽  
Hill Country ◽  
Continuous Grazing ◽  
Summer Pasture ◽  
Animal Performances ◽  
Grazing Policy ◽  
Made In

Comparisons of controlling late spring to early summer pasture growth on either easy or steep contoured land with either a fast rotation or continuous grazing policy were made in self-contained farmlets for two years. Pasture control was maintained over more land by controlling steep land first and with continuous grazing. Animal performances (ewes, steers) were generally similar for the mid-November to early January treatment period, and subsequently until May shearing. In the first year better animal performances occurred in "steep control" farmlets during winter and early spring, but this was less evident in the second year. Priority control of steep land during late spring-early summer is recommended because of likely longer-term benefits in pasture composition,density and production. Quick rotation grazing through the period provides a better ability to recognise and manage pasture quantities and should be adopted if summer droughts are anticipated. For well fenced properties in summer-wet areas and with integrated stock grazing, continuous grazing during late spring-early summer may be equally suitable. Keywords: hill country, grazing management, pasture control

Development of a nutritional strategy for increasing lamb survival in Merino ewes mated in late spring/early summer

1998 ◽  
Vol 52 (3) ◽  
pp. 213-219 ◽  
Author(s):  
M.B Nottle ◽  
D.O Kleemann ◽  
V.M Hocking ◽  
T.I Grosser ◽  
R.F Seamark
Keyword(s):  
Early Summer ◽  
Late Spring ◽  
Nutritional Strategy ◽  
Lamb Survival

scholarly journals Compost and soil moisture effects on seasonal carbon and nitrogen dynamics, greenhouse gas fluxes and global warming potential of semi-arid soils

2019 ◽  
Vol 8 (S1) ◽  
pp. 367-376 ◽  
Author(s):  
Mavis Badu Brempong ◽  
Urszula Norton ◽  
Jay B. Norton
Keyword(s):  
Global Warming ◽  
Soil Moisture ◽  
Global Warming Potential ◽  
Carbon Dioxide Emissions ◽  
Inorganic Nitrogen ◽  
Early Summer ◽  
Late Spring ◽  
Late Winter ◽  
Normal Soil ◽  
Soil Inorganic

Abstract Purpose An 8-week incubation study was conducted to monitor soil inorganic nitrogen (N), dissolved organic carbon (DOC), greenhouse gases (GHG) [CO2, N2O and CH4] and cumulative global warming potential (GWP) in dryland soil. Methods Soil was amended with variable rates of compost (zero, 15, 30 and 45 dry Mg ha−1) and soil moistures [5% (dry), 7% (normal) and 14% (wet) water filled pore space (WFPS)] and experienced biweekly temperature transitions from 5 °C (late winter) to 10 °C (early spring) to 15 °C (late spring) to 25 °C (early summer). Results The addition of 30 and 45 Mg ha−1 compost enhanced N mineralization with 13% more soil inorganic N (7.49 and 7.72 µg Ng−1 day−1, respectively) during early summer compared with lower compost rates. Normal and wet soils had 35% more DOC in the late spring (an average of 34 µg g−1 day−1) compared to the dry WFPS, but transitioning from late spring to early summer, DOC at all soil WFPS levels increased. Highest rates of compost were not significant sources of GHG with normal soil WFPS, compared with lower compost rates. Carbon dioxide emissions increased by 59 and 15%, respectively, as soil WFPS increased from dry to normal and normal to wet. Soils with normal WFPS were the most effective CH4 sink. Conclusion One-time application of high compost rates to dryland soils leads to enhanced N and C mineralization under normal soil moisture and warmer temperature of the summer but will not pose significant global warming dangers to the environment through GHG emissions since soils are rarely wet.

Fruit viability on grubbed Nassella trichotoma (Nees) tussocks

2002 ◽  
Vol 42 (8) ◽  
pp. 1057 ◽  
Author(s):  
S. Lamoureaux ◽  
G. Bourdôt
Keyword(s):  
New Zealand ◽  
High Risk ◽  
Developmental Stage ◽  
Root System ◽  
Seed Bank ◽  
Soil Seed Bank ◽  
Leaf Sheath ◽  
Early Summer ◽  
Late Spring ◽  
Summer Fruit

An experiment was conducted to determine the influence of time of grubbing in the late spring–early summer, panicle developmental stage at grubbing, and the presence or absence of roots on grubbed plants, on the initial and post-senescent viability of fruits of Nassella trichotoma in North Canterbury, New Zealand. The percentage of fruits viable, following desiccation of panicles removed from plants grubbed in the field, increased from 1% for panicles just beginning to emerge from the leaf sheath, to 49% for panicles fully extended at the time of grubbing. Similarly, as grubbing date was delayed from late November (late spring) until late December (early summer), fruit viability increased from 0.3 to 47%. Overall, 36% of the fruits were viable on panicles at the time of grubbing, increasing slightly to 47 and 44%, respectively, after a period of desiccation with and without the panicles being attached to the grubbed plant's root system. It was concluded that if recruitment of fruits of N. trichotoma to the soil seed bank is to be prevented in North Canterbury, plants must be uprooted before panicle extension. Delaying grubbing to when panicles are fully extended, while possibly enabling a higher percentage of plants to be detected and therefore destroyed, carries with it a high risk of permitting the recruitment of viable fruits to the soil seed bank.

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