The response of barrel medic pasture to topdressed and placed superphosphate in central western New South Wales

1973 ◽  
Vol 13 (65) ◽  
pp. 705 ◽  
Author(s):  
BJ Scott
Keyword(s):  
Dry Matter ◽  
New South ◽  
Soil Phosphorus ◽  
New South Wales ◽  
Phosphorus Uptake ◽  
Dry Matter Production ◽  
Barrel Medic ◽  
South Wales ◽  
Matter Production ◽  
Methods Of Application

The dry matter production of a pasture of barrel medic (Medicago truncatula cv. Jemalong) under different rates and methods of application of superphosphate was examined, during 1971 and 1972, on a phosphorus deficient soil at Condobolin, New South Wales. The treatments were factorial combinations of four rates of superphosphate (0, 126, 376, and 753 kg ha-1) and four methods of application of superphosphate (surface spread i.e. topdressed, surface applied in bands, placed at 5 cm depth, and placed at 1 0 cm depth). The dry matter production and phosphorus uptake results demonstrated the effectiveness of subsurface placement of superphosphate, but relative ineffectiveness of surface application during the dry winters experienced. The results also showed that root development in the dry 0-2 cm zone was restricted compared with that in the deeper moist soil layers. Soil phosphorus tests showed that one year after topdressing phosphorus had not moved below the 2-4 cm depth layer, even at 753 kg ha-1 of superphosphate.

Assessment of annual legumes for pastures in the low rainfall wheatbelt of central western New South Wales

1976 ◽  
Vol 16 (82) ◽  
pp. 739 ◽  
Author(s):  
BJ Scott ◽  
H Brownlee
Keyword(s):  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Trifolium Subterraneum ◽  
Dry Matter Production ◽  
Annual Legumes ◽  
South Wales ◽  
Matter Production ◽  
Plant Densities ◽  
Seed Yields

Dry matter production and seed yields of a range of annual legumes grown in ungrazed swards were measured between 1966 and 1971 on seven sites in the low rainfall wheatbelt of central western New South Wales. Jemalong and Hannaford barrel medics (Medicago truncatula) were the highest yielding medic cultivars tested. Jemalong medic was slightly superior to Hannaford in dry matter production but seed yields were equal. The short season subterranean clovers (Trifolium subterraneum), Dwalganup and Geraldton, yielded much less dry matter and seed than the medics in most experiments. Although the mid-season subterranean clovers, Woogenellup and Clare, persisted for the duration of our experiments, their production was not as consistent as that of the medics, and plant densities decreased. The rose clovers (T. hirtum), Sirint and Kondinin, the cupped clovers (T. cherleri), Beenong and Yamina, and Snail (M. scutellata) and Paragosa (M. rugosa) medics did not produce satisfactory swards.

Dry matter production and grain yield from grazed wheat in southern New South Wales

2009 ◽  
Vol 49 (10) ◽  
pp. 769 ◽  
Author(s):  
K. G. McMullen ◽  
J. M. Virgona
Keyword(s):  
Winter Wheat ◽  
Grain Yield ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Dry Matter Production ◽  
Growth Stages ◽  
Wheat Cultivars ◽  
South Wales ◽  
Matter Production

In southern New South Wales, Australia, grazing wheat during the vegetative and early reproductive growth stages (typically during winter) can provide a valuable contribution of high quality feed during a period of low pasture growth. This paper reports results from a series of experiments investigating the agronomic management of grazed wheats in southern NSW. The effect of sowing date and grazing on dry matter production and subsequent grain yield of a range of wheat cultivars was measured in five experiments in 2004 and 2005. In all experiments, results were compared with ungrazed spring wheat (cv. Diamondbird). Grain yield of the best winter cultivar was either the same or significantly greater than the spring cultivar in each of the five experiments. Within the winter wheat cultivars, there was significant variation in grain yield, protein content and screenings, depending on site and year with the cultivar Marombi out-yielding all others. Interestingly, this cultivar usually had the least dry matter post-grazing but the greatest dry matter by anthesis of the winter wheats. Generally, if sowing of the winter wheat was delayed, then the effects on yield were small or non-existent. The results are discussed with respect to the benefits of incorporating grazing cereals into cropping programs in the medium rainfall zone of southern Australia.

Establishment and survival of lucerne in a semi-arid environment.

1981 ◽  
Vol 3 (1) ◽  
pp. 99
Author(s):  
VE Rogers
Keyword(s):  
Dry Matter ◽  
Plant Density ◽  
New South ◽  
New South Wales ◽  
Arid Environment ◽  
Dry Matter Production ◽  
South Wales ◽  
Matter Production ◽  
Treat Ment ◽  
Semi Arid

Dry matter production and plant density were measured after seeding lucerne: (Medicago rarii'a) into grassland at two sites in New South Wales having inearl annual rainfalls of 292 and 425 mm. Various methods of minimal tillage establishment were used. Sod-seeding failed to produce a satisfactory stand at either site, even where herbicide had been applied. Survival was best when lucerne was sown in furrows 15 cm wide, the lucerne density after five years being 8 plants ~n'~, or 80,000 plants ha-'. This treat- ment was also superior in dry matter production to the use of furrows of 5 and 10 an width, or to seeding after a single cultivation. The effect on production of a herbicide applied at sowing decreased with increasing width of furrow. The results of this study could also be relevant to the establishment of other species under rangeland conditions.

Production from tagasaste (Chamaecytisus palmensis) at four contrasting sites in New South Wales

1991 ◽  
Vol 31 (5) ◽  
pp. 639 ◽  
Author(s):  
PL Milthorpe ◽  
PR Dann
Keyword(s):  
Low Temperatures ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Experimental Period ◽  
Production Potential ◽  
Good Production ◽  
South Wales ◽  
Matter Production ◽  
Fodder Crops

In 1985, experiments were conducted at 4 localities in south-eastern and central New South Wales, to assess the production potential of tagasaste. The results were disappointing: 2 experiments failed to establish because of soil waterlogging, while production from the other 2 sites was only intermittent. Annual dry matter production did not exceed 3 t/ha at Condobolin or 5 t/ha at Yass. Although survival of established plants was good, production was limited by prolonged dry periods at Condobolin and by low temperatures during winter at Yass. Tagasaste is costly to establish (up to $A500/ha) and difficult to manage. In our environments, conventional pastures or fodder crops which require simpler management would probably out-produce tagasaste at most times during the experimental period.

Growth, yield and nitrogen requirements of winter sown cereals grown after cotton or summer fallow in the lower Namoi Valley, New South Wales

1984 ◽  
Vol 24 (125) ◽  
pp. 236
Author(s):  
GK McDonald ◽  
BG Sutton ◽  
FW Ellison
Keyword(s):  
Grain Yield ◽  
Leaf Area ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Grain Yields ◽  
South Wales ◽  
Matter Production ◽  
Summer Fallow ◽  
Applied Nitrogen

Three winter cereals (wheat varieties Songlen and WW 15, triticale variety Satu) were grown after cotton or summer fallow under three levels of applied nitrogen (0, 100 and 200 kg N/ha) at Narrabri, New South Wales. The cereals were sown on August 7, 1980 and growing season rainfall was supplemented by a single irrigation. Leaf area, total shoot dry matter production and ears per square metre were lower after cotton than after summer fallow, while grain yields of cereals sown immediately after cotton were 33% lower than those sown after fallow. Adding nitrogen increased leaf area, dry matter and grain yields of crops grown after cotton and fallow, but significant increases were not obtained with more than 100 kg/ha of applied nitrogen. Crops grown after cotton required an application of 100 kg N/ha for leaf and dry matter production at anthesis to equal that of crops grown after fallow with no additional nitrogen. The corresponding cost to grain yield of growing cotton was equivalent to 200 kg N/ha. The low grain yield responses measured in this experiment (1 8 and 10% increase to 100 kg N/ha after cotton and fallow, respectively) were attributed to the combined effects of late sowing, low levels of soil moisture and loss, by denitrification, of some of the applied nitrogen. The triticale, Satu, yielded significantly less than the two wheats (1 99 g/m2 for Satu c.f. 255 and 286 g/m2 for Songlen and WW 15, respectively), and did not appear to be a viable alternative to wheat in a cotton rotation.

Hybrid Bermudagrass compared with Kikuyu and common couch in coastal New South Wales. 1. Establishment, dry matter production and persistence

1979 ◽  
Vol 19 (99) ◽  
pp. 437 ◽  
Author(s):  
AC Andrews ◽  
FC Crofts
Keyword(s):  
Growth Rates ◽  
Dry Matter ◽  
Cynodon Dactylon ◽  
New South ◽  
New South Wales ◽  
Sandy Soils ◽  
The Other ◽  
Potential Value ◽  
South Wales ◽  
Matter Production

Four ecotypes of hybrid Bermudagrass (Cynodon dactylon) were compared with common couch (C. dactylon) and kikuyu (Pennisetum clandestinum) at five sites in coastal districts of New South Wales. The sites were Grafton and Coaldale (Lat. 30�S), Mitchells Island (Lat. 32�S) and Richmond and Badgerys Creek (Lat. 34�S). Hybrid Bermudagrass ecotypes 6389 and 692 were established quickly at all sites while ecotypes 71 9 and 632 were satsifactory. Kikuyu was strong at all sites except Grafton but the rate of establishment of common couch was poor. At the frost-free sandy site of Mitchells Island, Bermudagrass ecotypes 719, 692, 6389, and 632 outyielded kikuyu by 75, 65, 65 and 35%, respectively. However, at Grafton and Coaldale, the highest yielding Bermudagrass ecotype, 719, had only 35% higher production than kikuyu. At the frost prone southern sites of Richmond and Badgerys Creek, the annual production of kikuyu was equal to that of ecotypes 719, 6389, 692 and 632. Common couch yields were equal to kikuyu at all sites except at Richmond. At Mitchells Island, the hybrid Bermudagrasses outyielded kikuyu in spring, summer and early autumn but in the late autumn kikuyu had equal and sometimes higher growth rates than the best Bermudagrasses. In winter, the growth of both species was negligible, although kikuyu, unlike the Bermudagrasses, did produce some new shoots at the base of the sward. Data on persistence under grazing were collected from only three of the sites but trends were similar to establishment. Ecotype 6389 had the highest persistence rating of the Bermudagrasses. Kikuyu failed at the poorly drained sandy site of Grafton but remained strong at the other sites. It was concluded that hybrid Bermudagrasses were of potential value for pastures in New South Wales, especially for sites with sandy soils and low frost incidence.

Establishment of barrel medic under wheat, oats, barley and linseed in central western New South Wales

1974 ◽  
Vol 14 (71) ◽  
pp. 785 ◽  
Author(s):  
BJ Scott ◽  
H Brownlee
Keyword(s):  
Medicago Truncatula ◽  
Cover Crops ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Barrel Medic ◽  
South Wales

Experiments in 1969 and 1970 at Condobolin, New South Wales, measured the effects of cover crops of wheat, oats, barley and linseed on the dry matter and pod production of undersown Jemalong barrel medic (Medicago truncatula). The cover crops differed in their capacities to produce dry matter. Medic regenerated densely each year after linseed, the lowest density being greater than after wheat, oats or barley sown at rates greater than 11 kg ha-1. When wheat or barley was sown at 6 kg ha-1, medic regeneration was comparable with that after linseed

The plant nutrient status of granite soils from the Bendemeer area of New South Wales

1966 ◽  
Vol 6 (20) ◽  
pp. 17 ◽  
Author(s):  
F McMullen
Keyword(s):  
Dry Matter ◽  
New South ◽  
Soil Phosphorus ◽  
New South Wales ◽  
Trifolium Subterraneum ◽  
Nutrient Status ◽  
Calcium Sulphate ◽  
Plant Nutrient ◽  
First Order ◽  
South Wales

A factorial glasshouse pot trial was used to examine the supply of phosphorus, boron, zinc, copper, cobalt, magnesium, molybdenum, potassium, and manganese, to the Dwalganup strain of Trifolium subterraneum L. growing in virgin granite soils from Bendemeer, New South Wales. Calcium sulphate was applied as a basal nutrient. Significant dry matter responses were obtained on all four virgin soils to the application of phosphorus, molybdenum, and potassium; to copper on two soils; and to boron and cobalt on one soil. Phosphorus was so deficient that responses to other plant nutrients did not occur in its absence. On all soils, significant first order interactions were recorded between phosphorus and other deficient elements. In addition, significant interactions were recorded between molybdenum and magnesium, copper and molybdenum, boron and molybdenum, copper and cobalt, and potassium and molybdenum.

Nutrition of irrigated crops on an alkaline brown clay soil at Trangie, New South Wales. 1. Lucerne

1986 ◽  
Vol 26 (4) ◽  
pp. 445
Author(s):  
DK Muldoon
Keyword(s):  
Dry Matter ◽  
Soil Phosphorus ◽  
Dry Matter Production ◽  
Yield Response ◽  
Phosphorus Concentration ◽  
Alkaline Soil ◽  
Phosphorus Level ◽  
South Wales ◽  
Matter Production ◽  
Available Soil Phosphorus

The elements nitrogen, phosphorus, potassium, sulfur and zinc were sequentially omitted from a 'complete' fertiliser applied to plots on an alkaline soil, and lucerne (Medicago sativa) was sown immediately afterwards. The dry matter production of lucerne was measured in repeated cuts over 2 years; its mineral composition was determined periodically. In a second experiment 4 rates of phosphorus were applied to a l -year-old stand of lucerne and dry matter production recorded for 1 year. Lucerne yields in the first year were reduced from 17-1 8 t/ha to less than 14 t/ha by omitting phosphorus. Yields universally decreased in the second year as the 50 kg/ha P applied at sowing was depleted through the removal of 40 kg/ha P in forage. Following this depletion a linear yield response up to 80 kg/ha P was found (experiment 2). Omitting phosphorus fertiliser reduced the plant phosphorus concentration from 0.23 to 0.21% when sampled 15 months after sowing. The plant phosphorus concentration decreased with time in all treatments. The available soil phosphorus level decreased from an initial 12 to 6-7 �g/g after 6 months and further to 2 �g/g after 30 months. Fertiliser phosphorus raised the soil phosphorus level but this also was depleted to 2-3 �g/g in 30 months. Omitting zinc reduced the plant zinc concentration. However, neither the omission of nitrogen, potassium, sulfur nor zinc from the fertiliser had any effect on lucerne yields.

Production and persistence of six lucerne cultivars at Narrabri, NSW

1970 ◽  
Vol 10 (47) ◽  
pp. 745 ◽  
Author(s):  
TE Launders
Keyword(s):  
Medicago Sativa ◽  
Dry Matter ◽  
Plant Density ◽  
New South ◽  
New South Wales ◽  
Higher Plant ◽  
The Third ◽  
South Wales ◽  
Matter Production ◽  
Type C

Seasonal yields and persistence of Hunter River and three introduced lucerne (Medicago sativa) cultivars (African, Du Puits, and Hairy Peruvian) were compared with two C.S.I.R.O.-bred lines, a hay type (C.1212) and a creeping type (Cancreep), over a five-year period between 1963 and 1968 under dryland conditions at Narrabri, New South Wales. After two years, Hunter River had significantly higher plant density than all other cultivars. By maintaining this superiority throughout the experiment, it was never exceeded in dry matter production in any season after the third summer. Spring yields of Cancreep compared favourably with Hunter River for three seasons, and there was little difference between most cultivars for four summers. Cancreep and Hairy Peruvian matched Hunter River in autumn-winter production for two seasons. In all cases decline in production during the third and fourth years is attributed to a lack of persistence in cultivars other than Hunter River.

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