Summer forages under irrigation. 4. The growth and mineral composition of forage legumes

1985 ◽  
Vol 25 (2) ◽  
pp. 417 ◽  
Author(s):  
DK Muldoon
Keyword(s):  
Dry Matter ◽  
Growth Habit ◽  
New South ◽  
Dry Matter Accumulation ◽  
Lablab Purpureus ◽  
Forage Legumes ◽  
Primary Growth ◽  
South Wales ◽  
Macroptilium Lathyroides ◽  
Prostrate Growth

Summer forage legumes from the species Vigna unguiculata, Macroptilium lathyroides, Lablab purpureus, Arachis hypogaea and Glycine max were grown under irrigation at Trangie, New South Wales. Dry matter accumulation and plant development were recorded in primary growth and three subsequent regrowths. Plant fractions were analysed for nitrogen, sulfur and sodium during primary growth. In primary growth lablab produced the highest dry matter yield of 14 t/ha. This was attributed to very late flowering (110 days) and woody stems able to support this bulk. In contrast, cowpea lodged after producing 7 t/ha. Soybean produced 10 t/ha of dry matter but rapid leaf abscission detracted from its forage potential. Phasey bean was an excellent species under a 6-week cutting regime, yielding 10 t/ha from four cuts. In contrast to other species, it branched rapidly and extensively from basal buds. The basal branching and prostrate growth habit of peanut enabled it to yield 9 t/ha from three cuts. The leaves of all species contained over 3% nitrogen; mature stems had only half this concentration. Phasey bean and cowpea had much higher sodium contents (1040 and 1535 ppm at 10 weeks) than lablab (335), peanut (80), and soybean (165), the latter three being below recommended levels for animal production. All species contained satisfactory levels of sulfur (0.21, 0.30, 0.20, 0.18 and 0.17% in phasey bean, cowpea, lablab, peanut and soybean, respectively, at 10 weeks).

Growth and quality of tropical forages in a temperate climate

1977 ◽  
Vol 17 (89) ◽  
pp. 991 ◽  
Author(s):  
CJ Pearson ◽  
KW Dawbin ◽  
DK Muldoon ◽  
LC Campbell
Keyword(s):  
Organic Matter ◽  
Dry Matter ◽  
New South ◽  
Temperate Climate ◽  
Dry Matter Accumulation ◽  
Maize Hybrid ◽  
South Wales ◽  
Tropical Forages ◽  
Hybrid Pennisetum

Dry matter accumulation in maize, hybrid pennisetum and mid- and late-season pearl millet were assessed following planting in mid-summer at Camden, New South Wales. Productivity was high in maize and hybrid pennisetum, the maximum above-ground rate of dry matter accumulation averaging 590 kg ha-1 day-1 for 20 days for maize in March 1975. Productivity was lower in the pearl millets which lodged in April of 1975 and 1976. Organic matter digestibility was superior in maize, phosphorus concentrations were higher in hybrid pennisetum and magnesium and calcium concentrations were the same in hybrid pennisetum as in maize. The concentrations of minerals would be generally too low to maintain highly-productive livestock if they were fed exclusively on these tropical forages.

scholarly journals ESTABLISHMENT TECHNIQUES FOR TROPICAL LEGUMES IN THE UNDERSTORY OF A EUCALYPTUS PLANTATION

2015 ◽  
Vol 39 (2) ◽  
pp. 345-352
Author(s):  
Maria Luiza Franceschi Nicodemo ◽  
Francisco Humberto Dubbern de Souza ◽  
Jose Ricardo Macedo Pezzopane ◽  
João Carlos Teixeira Mendes ◽  
Waldomiro Barioni Júnior
Keyword(s):  
Dry Matter ◽  
Eucalyptus Grandis ◽  
Ground Cover ◽  
Experimental Period ◽  
Dry Matter Accumulation ◽  
Lablab Purpureus ◽  
Forage Legumes ◽  
Eucalyptus Plantation ◽  
Before And After ◽  
Calopogonium Mucunoides

This study evaluated establishment methods for a mixture of herbaceous forage legumes [Centrosema acutifolium, Clitoria ternatea, Pueraria phaseoloides, Stylosanthes Campo Grande (Stylosanthes capitata + S. macrocephala), Calopogonium mucunoides, Lablab purpureus, Arachis pintoi, and Aeschynomene villosa] under the shade of an Eucalyptus grandis plantation submitted to thinning (40%) 8 years after planting in Anhembi, São Paulo (22°40'S, 48°10'W, altitude of 455 m). The experiment started in December 2008 and consisted of the comparison of the following four types of seed incorporation by light disc harrowing: (1) broadcast sowing without seed incorporation; disc harrowing before (2) or after (3) planting, and (4) disc harrowing before and after planting. Ninety days after planting, the number of legume plants/m2 and the percentage of ground cover by the plants varied between the treatments tested; however, the treatments had no effect on the dry matter accumulation of forage legumes. Disc harrowing before planting yielded superior results compared to the treatments without disc harrowing and disc harrowing after planting. At the end of the experimental period, the plots contained Arachis, Centrosema, Stylosanthes, and Pueraria. The dry matter accumulated by Centrosema corresponded to 73% of total dry matter yield of the plots. The participation of Arachis, Centrosema and Stylosanthes in final dry matter composition of the plots varied according to establishment method. The advantages of the use of species mixtures rather than monocultures in the understory of forest plantations were discussed.

Morphological and agronomic attributes of Cassia rotundifolia Pers., C. pilosa L., and C. trichopoda Benth., potential forage legumes for northern Australia

1985 ◽  
Vol 25 (1) ◽  
pp. 100 ◽  
Author(s):  
RW Strickland ◽  
RG Greenfield ◽  
GPM Wilson ◽  
GL Harvey
Keyword(s):  
Dry Matter ◽  
Clay Soil ◽  
New South ◽  
Textured Surface ◽  
Forage Legumes ◽  
Laboratory Rats ◽  
Commercial Use ◽  
South Wales ◽  
Feeding Value ◽  
Seed Yields

This paper reports variation in phenology, morphology, feeding value and environmental adaptation of 18 accessions of Cassia rotundifolia and one each of C. pilosa and C. trichopoda. There were three major maturity groups within C. rotundifolia and a very large variation in seed size. Dry matter and seed yields were measured at four sites in south-eastern Queensland (Beerwah, Gatton, Gympie and Narayen) and at Grafton in New South Wales. There was significant variation in these attributes between accessions, sites and harvest times. All accessions were adapted to light-textured surface soils but did not tolerate waterlogging, particularly on the clay soil at Gatton. One early-flowering accession (34721) of C. rotundifolia has been released for commercial use because of its general performance over the range of seasons and sites that were sampled in this investigation, and prior experience of its persistence and spread under intermittent grazing at a number of sites in Queensland and the Northern Territory. C. rotundifolia and C. pilosa were acceptable animal feeds, but C. trichopoda had deleterious effects on laboratory rats.

Summer forages under irrigation. 1. Growth and development

1985 ◽  
Vol 25 (2) ◽  
pp. 392 ◽  
Author(s):  
DK Muldoon
Keyword(s):  
Sweet Sorghum ◽  
Dry Matter ◽  
Temperate Climate ◽  
Dry Matter Accumulation ◽  
Forage Production ◽  
Potential Growth ◽  
Accumulation Pattern ◽  
Primary Growth ◽  
South Wales ◽  
Matter Production

Summer forages, including Sorghum bicolor hybrids, S, sudanense, S. bicolor x S. sudanense hybrids, perennial sorghum, maize and Pennisetum and Echinochloa millets were grown on an alkaline clay soil at Trangie, New South Wales. They were fertilized and flood irrigated to allow the expression of potential growth characteristics. Fractional dry matter accumulation was measured during primary growth and subsequent regrowths. The accumulation pattern in primary growth was described by quadratic regressions of logarithmically transformed data. The highest dry matter yield of 31-33 t/ha was obtained in a single cut from late flowering sweet sorghum hybrids. Under a multiple cutting regime, however, these were inferior to sudangrass and sorghumxsudangrass hybrids, which produced up to 14 and 16 t/ha, respectively. The latter group maintained tiller numbers in regrowth in contrast to the poor tillering and slow regrowth of sweet sorghum hybrids. Regrowth of maize was negligible following tiller decapitation. Piper Sudangrass and Indian barnyard millet were the only species to yield as much under multiple cutting as from a single cut. The latter was exceptional among the millets in that most millets tillered poorly after the second cut. The millets produced less than half the cumulative regrowth yield of sorghum hybrids. Removal of the apical meristem appeared to jeopardize their regrowth. Consequently, if maximum dry matter production is the sole aim of forage production, millets do not compete with sorghum hybrids in a warm temperate climate.

Soil-extractable sulfur and pasture response to applied sulfur

1998 ◽  
Vol 38 (6) ◽  
pp. 567 ◽  
Author(s):  
G. C. Anderson ◽  
R. D. B. Lefroy ◽  
G. J. Blair
Keyword(s):  
Dry Matter ◽  
New South ◽  
Growth Period ◽  
Acid Digestion ◽  
Extraction Techniques ◽  
Organic S ◽  
South Wales ◽  
Trifolium Repens L ◽  
Soil Sulfur ◽  
The Relationship

Summary. A glasshouse experiment was conducted to study the correlation between various soil sulfur (S) extractants and pasture response to applied S grown under controlled environmental conditions (glasshouse) as influenced by variations in levels of extractable S. Intact paired soil cores were collected at 2-month intervals from an S x P factorial experiment at 4 field sites on the Northern Tablelands of New South Wales on 11 occasions. Soil samples were collected from each core and the cores placed in the glasshouse. Sulfur was applied to one core of each pair and basal nutrients applied to all cores which were then oversown with white clover (Trifolium repens L. cv. Haifa). The extractable S in the soil was analysed using the following techniques: 0.1 mol Ca(H2PO4)2/L (MCPt); 0.1 mol Ca(H2PO4)2/L, treated with activated charcoal (MCPi); water (H2O); 0.25 mol KCl/L, heated at 40°C for 3 h (KCl-40); 0.25 mol KCl/L, heated at 100°C for 4 h (KCl-100); 0.5 mol NaHCO3/L (NaHCO3); and an acid digestion of the soil (total). Dry matter yield and S content of the pasture shoots were measured for each 2-month growth period. The relationship between the various soil S extraction techniques and the response of pasture to applied S varied over time and was influenced by the level of inorganic S present in the soil and the amount of organic S extracted. When the level of MCPi-extractable S ranged between 2 and 22 µg S/g soil due to the application of fertiliser (summer 1987–88 and autumn 1988), or after a period of high mineralisation rates (spring 1988), the MCPi, MCPt, H2O and KCl-40 techniques had the highest correlation with the increase in S content of the pasture when S was applied. The higher correlation for the MCPt, H2O and KCl-40 techniques than the MCPi technique indicates that plants obtained some S from the organic S pool. In contrast, when the levels of MCPi-extractable S ranged between 2 and 10 µg S/g soil and the rate of mineralisation increased in response to an increase in soil temperature (June 1988 and June 1989) or moisture (September 1989) upon transfer of samples from the field to the glasshouse, the MCPt, H2O and KCl-40 techniques underestimated the available S pool and had lower r2 values than either the KCl-100 or NaHCO3 techniques.

Performance of temperate legumes and associated grasses on granitic soils of low fertility in the New England region of New South Wales

1975 ◽  
Vol 15 (77) ◽  
pp. 795 ◽  
Author(s):  
JA Thompson
Keyword(s):  
New England ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Subterranean Clover ◽  
Fertilizer Application ◽  
Perennial Grasses ◽  
Low Fertility ◽  
South Wales ◽  
Applied Nitrogen

A range of temperate annual and perennial legumes, naturalized or commonly sown in the area, was examined at three field sites in low fertility soils derived from granite on the south western slopes of the New England Region, New South Wales. They were compared over a four year period in terms of their persistence, dry matter and nitrogen production and their compatibility with associated temperate perennial grasses, The response of sown grass to nitrogen fertilizer application was also examined in the absence of legume. Ten legumes were examined at one site and six of these at the other two sites. In general, nitrogen yields were ranked similarly to total dry matter yields of all treatments, including grasses in the absence of legume. However, the legumes were ranked differently in terms of productivity of the legume component and productivity of associated grass. At all sites lucerne gave the highest yields of total dry matter and of legume and the lowest yield and persistence of associated grass-comparable to grass growing in the absence of legume or applied nitrogen. Subterranean clover was ranked second or third in total dry matter yield, depending on site, but provided the highest yield of associated grasscomparable to grass receiving high levels of applied nitrogen. Under this legume soil nitrogen levels tended to be highest. Rose clover, sown at one site only, yielded more legume dry matter than subterranean clover but grass yield was comparable to that with lucerne. The results suggest that subterranean clover is the superior legume for successful mixed sowings although inclusion of white clover could be justified. Lucerne appears to be best sown as a pure sward.

Chemical seedbed preparation and the efficiency of nitrogen utilization by sod-sown oats. 2. Spraying interval and comparison of herbicides

1971 ◽  
Vol 11 (50) ◽  
pp. 307 ◽  
Author(s):  
GJ Murtagh
Keyword(s):  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
Ammonium Thiocyanate ◽  
Nitrogen Utilization ◽  
North Coast ◽  
Paspalum Dilatatum ◽  
The North ◽  
South Wales ◽  
Seedbed Preparation

The effectiveness of chemical seedbed preparation for sod-sown oats was studied using varying intervals between spraying and sowing. Four herbicides were compared in a second experiment. Both experiments were conducted on paspalum (Paspalum dilatatum) dominant pastures on red basaltic soil on the North Coast of New South Wales. Herbicides were most effective when applied at 6.7 kg acid equivalent a hectare. At this rate, the highest yields of dry matter and nitrogen were obtained when there was a three-week interval and considerably less when there was no interval. A mixture of 2,2-DPA (2,2-dichloropropionic acid) and amitrole (3-amino-1,2,4-triazole) was more effective than 2,2-DPA alone with a three-week spraying interval but there was no difference with a six-week interval. Both amitrole and a mixture of amitrole and ammonium thiocyanate were ineffective for chemical seedbed preparation on paspalum pastures;

Persistence and water use efficiency of a tropical grass and lucerne on a solodic soil on the Far North-West Slopes of New South Wales

1993 ◽  
Vol 33 (2) ◽  
pp. 245 ◽  
Author(s):  
PG Tow
Keyword(s):  
Water Use Efficiency ◽  
Water Use ◽  
Dry Matter ◽  
New South ◽  
New South Wales ◽  
North West ◽  
South Wales ◽  
Summer Temperatures ◽  
Spring Temperatures ◽  
Use Efficiency

The persistence and water use efficiency of Digitaria eriantha spp. eriantha and Hunter river lucerne were compared on red solodic soil with a hardsetting surface and poor internal drainage, on the North- West Slopes of New South Wales. After prolonged watering, the profile was wet to a depth of 48 � 1.5 cm, with an available moisture store of 90 mm. Over 3 years, persistence of digitaria was excellent. The population of lucerne was reduced following flooding at summer temperatures, Dry matter production of nitrogen (N) fertilised digitaria per mm warm season rainfall was similar to that of tropical grasses adapted to comparable rainfall environments in subtropical Queensland. Lucerne dry matter per mm rainfall was only about half that of digitaria (3.2 v. 6.3 kg). Lucerne grew well in mixture with digitaria except under prolonged wet soil conditions in summer. Artificial solodic profiles were constructed in the glasshouse to compare digitaria and lucerne in monoculture and mixture under varying temperature, moisture, and N regimes. Lucerne showed sensitivity to both high and low moisture levels at summer temperatures but performed very well at spring temperatures and moderate moisture levels where the mean evapotranspiration ratio was 400 g water per g dry matter. Water use efficiency was higher in digitaria than in lucerne, except at spring temperatures without added N. Water use efficiency of the mixture was always similar to that of the most efficient monoculture of the particular treatment.

Growth and yield of determinate and indeterminate cowpeas in dryland agriculture

1980 ◽  
Vol 94 (1) ◽  
pp. 137-144 ◽  
Author(s):  
G. S. Chaturvedi ◽  
P. K. Aggarwal ◽  
S. K. Sinha
Keyword(s):  
Grain Yield ◽  
Dry Matter ◽  
Arid Regions ◽  
Growth Habit ◽  
Growth And Yield ◽  
Dry Matter Accumulation ◽  
Peak Period ◽  
Legume Crop ◽  
Pod Development ◽  
The Tropics

SummaryCowpea is an important food legume crop of arid and semi-arid regions of the tropics. In such climates whether a determinate or indeterminate type of growth habit would be more useful is not clear. In the present study a determinate and indeterminate cultivar of cowpea were grown at two population densities under rainfed conditions for 2 years. Grain yield was higher in the indeterminate variety for both years. At higher density more dry matter was produced but it had no effect on grain yield. Nitrogen analysis showed that it moved from leaves to developing pods. However, a large amount of nitrogen was still left in vegetative parts in contrast to cereals. Pod development was completed in 19 days and the rate of dry-matter accumulation during the peak period of growth was as high as 120 mg/day per fruit. It was difficult for the plant to cope with this high demand for photosynthates. It is suggested that more pods can develop on a plant provided the growth rate of individual pods is slower and extended to a longer period.

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