The intensive production of herbage for crop-drying III. The effect of the continued application of nitrogenous fertilizers to grassland

1951 ◽  
Vol 41 (1-2) ◽  
pp. 64-69 ◽  
Author(s):  
W. Holmes
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Farmyard Manure ◽  
Seasonal Distribution ◽  
First Year ◽  
Botanical Composition ◽  
Loss On Ignition ◽  
Average Yield ◽  
Nitrogen Treatment ◽  
General Reduction

1. The experiment previously described (series 4, Holmes, 1949) on the effect of massive applications of nitrogenous fertilizers on the productivity of a ryegrass dominant pasture was continued for 3 years (1946, 1947, 1948). The manurial treatments ranged from none to the application of 312 lb. nitrogen per acre and this was applied with and without 135 lb. P2O5 and 168 lb. K2O per acre. Farmyard manure was applied to one block in 1948.2. With the heaviest nitrogen treatment plus phosphate and potash the average yield for 3 years was 8000 lb. dry matter and 1640 lb. crude protein (similar to the yield in 1946) compared with a control yield of 4720 lb. dry matter and 590 lb. crude protein. The yields declined from year to year when phosphate and potash were not applied, the decline being greatest with the heaviest application of nitrogen.3. The seasonal distribution of the yield of herbage was very considerably modified by the time when fertilizers were applied.4. The botanical composition of the swards was related to the yield, 70% of the grasses in the highest yielding sward being perennial ryegrass and cocksfoot while the lowest yielding sward contained only 35% of these grasses.5. The manurial treatments had no effect on the pH, loss on ignition or the content of readily soluble P2O5 in the soil, but in the first year there was some evidence of a general reduction of readily soluble K2O to a low level.

Effect of second-pond dairy effluent on turnip dry matter yield, nutritive characteristics, and mineral content

2007 ◽  
Vol 58 (9) ◽  
pp. 884 ◽  
Author(s):  
J. L. Jacobs ◽  
G. N. Ward
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Mineral Content ◽  
Nutritive Value ◽  
Linear Increase ◽  
First Year ◽  
Dairy Effluent ◽  
Total Soluble Salt ◽  
Marked Decline ◽  
Linear Manner

Dairy farms in southern Australia generally use a 2-pond system to manage dairy shed effluent. This system consists of a deep anaerobic first pond and a shallow aerobic second pond. The liquid in the second pond contains a range of nutrients that may have agronomic benefits for forages. The effect of applying second-pond dairy effluent to a summer turnip (Brassica rapa L.) crop over 3 consecutive summer periods was measured. Effluent was applied at 6 rates, 0, 15, 30, 45, 60, and 75 mm, approximately 6–8 weeks after turnips were sown each year. Turnips were assessed for dry matter (DM) accumulation, nutritive characteristics, and mineral content. In addition, total annual production for years 1 and 2 was calculated by including the DM accumulation from annual ryegrass grown from autumn to spring each year. Concentrations of nutrients within the effluent as an average over the 3 years were 31, 454, 20, and 149 kg/ML for phosphorus (P), potassium (K), sulfur (S), and nitrogen (N), respectively. In addition, effluent also contained 152 kg/ML of calcium (Ca), 225 kg/ML of magnesium (Mg), and 529 kg/ML of sodium (Na). Soil pH was generally unaffected with effluent application, while soil EC and total soluble salt (TSS) content increased with effluent addition. In the first year, application of effluent at 15 mm and higher resulted in increases in available K; however, in subsequent years, rates of 45 mm and higher led to an increase in available K, while for the control and lower effluent rates there was a marked decline in K status. In all years there was a linear increase (P < 0.05) in leaf, root, and total DM yields with applied effluent. For leaf, responses were 19, 50, and 26 kg DM per mm applied effluent and for roots, 10, 39, and 25 kg DM per mm applied effluent for years 1, 2, and 3, respectively. In years 2 and 3, turnip leaf crude protein (CP) content increased (P < 0.05) in a linear manner at rates of 0.046 and 0.044% per mm applied effluent, respectively. There was also a linear increase (P < 0.05) in turnip root CP in years 2 and 3 of 0.033 and 0.021% per mm applied effluent, respectively. In all years there was a linear increase (P < 0.05) in leaf K content, while for root K there was a quadratic trend (P < 0.05) for year 1 and a linear increase (P < 0.05) for years 2 and 3. The results from this study indicate that the use of dairy effluent can increase DM yield and improve the nutritive value of turnips through an increase in CP content. The data also indicate that this effect can be maintained over consecutive years, which in turn may provide greater flexibility for returning effluent to farm land. While results appear to indicate that the primary responses are due to N, further work is required to determine the effects of water and other nutrients within dairy effluent.

The seasonal distribution of nitrogen fertilizer dressings on pure perennial ryegrass swards

1984 ◽  
Vol 103 (3) ◽  
pp. 659-669 ◽  
Author(s):  
D. Reid
Keyword(s):  
Perennial Ryegrass ◽  
Nitrogen Fertilizer ◽  
Crude Protein ◽  
Dry Matter ◽  
Distribution Patterns ◽  
Seasonal Distribution ◽  
Experimental Designs ◽  
Residual Effects ◽  
Nitrogen Application ◽  
Yield Distribution

SummaryIn studies of the seasonal distribution of nitrogen fertilizer dressings on grassland using conventional experimental designs it is usually not possible to separate the true effects of an individual fertilizer dressing on the yield at a particular cut from the residual effects of previous dressings. An experiment is described which was designed to allow separation of the direct and residual effects, with certain restrictions, for a system involving five cuts and five possible fertilizer dressings per season on perennial ryegrass swards. From the results obtained over two harvest years on swards on two adjacent sites equations were derived relating the dry-matter and crude-protein yields of herbage to the rate of nitrogen application at five dressings in the season. Predictions of yield distribution patterns from the equations are compared with observed yields from various sequences of nitrogen dressings included in previous experiments at this Institute. Examples are also given of the prediction of sequences of nitrogen dressings required to obtain certain patterns of yield distribution.

scholarly journals Influence of integrated crop-livestock-forest on morphological composition and nutritional value of Marandu palisadegrass under continuous grazing

2021 ◽  
Vol 42 (6) ◽  
pp. 3415-3430
Author(s):  
Erikelly Aline Ribeiro Santana ◽  
Ciniro Costa ◽  
Paulo Roberto de Lima Meirelles ◽  
Cristiana Andrighetto ◽  
Gustavo Pavan Mateus ◽  
...  
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Nutritional Value ◽  
Accumulation Rate ◽  
Dry Mass ◽  
First Year ◽  
Leaf Mass ◽  
Continuous Grazing ◽  
Morphological Composition ◽  
Livestock System

This study characterizes the changes in leaf mass, morphological composition and nutritional value of leaf blades of palisadegrass (Urochloa brizantha cv. Marandu) under continuous grazing in the first year of implementation of pasture and after second year of the eucalyptus planting in an Integrated Crop-Livestock System and Integrated Crop-Livestock-Forest, which were tested in the four seasons. The experimental design was in random blocks, with three treatments: Crop-Livestock System (ICL) and Integrated Crop-Livestock-Forest with two eucalyptus tree densities (ICLF-1L, 196 eucalyptus trees ha-1 and ICLF-3L, 448 eucalyptus trees ha-1) and four replicates. Sixty castrated Nellore cattle with initial weight of 235.43 ± 25.46 kg and mean age of 16 ± 2.81 months were used during the growing phase under continuous grazing. The agronomic variables were: total dry mass of forage, leaves, stem and dead material; leaf: stem and live: senescent material ratios; and accumulation rate. The leaf: stem and live: senescent material relation did not obtain any difference between the evaluated systems. Dry matter, crude protein, fiber fractions and digestibility of leaf blades were evaluated. Dry mass of the forage (6775 kg ha-1), stem (2175 kg ha-1), senescent material (3175 kg ha-1) and dry matter content (28.6%) were greater in the ICL, whereas crude protein (11.3%) was greater in the ICLFs. On the other hand, accumulation rate and dry mass of leaf blades did not change between systems. Thus, until the first year of grazing, tree systems have advantages, because the forage production (accumulation rate) and leaf mass are similar to those of plants in full sun, besides showing higher nutritional value.

Liveweight and wool growth of sheep in response to the quantity and botanical composition of annual pasture induced by nitrogen fertilizer and stocking treatments

1972 ◽  
Vol 23 (6) ◽  
pp. 1101 ◽  
Author(s):  
HL Davies ◽  
EAN Greenwood
Keyword(s):  
Ammonium Sulphate ◽  
Nitrogen Fertilizer ◽  
Dry Matter ◽  
Trifolium Subterraneum ◽  
First Year ◽  
Botanical Composition ◽  
Stocking Rate ◽  
Nitrogen Concentrations ◽  
Sheep Production

For five years, three rates of ammonium sulphate (N0, N1, and N3: 0, 280, and 840 kg/ha/year) were applied as a split dressing to ,a pasture of Bromus mollis L. and Trifolium subterraneum L. which was continuously grazed by wethers set-stocked at 8.6 and 12.4 sheep/ha. The N0 treatment produced clover dominance, N1 a mixed sward, and N3 grass dominance. The higher stocking rate increased the proportion of clover in the mixed sward. These differences in botanical composition produced three significant effects on the relation between liveweight gain and quantity of green pasture on offer. An increase in the proportion of clover in the sward increased: (1) the quantity of herbage dry matter on offer required for liveweight maintenance; (2) the maximum rate of liveweight gain; (3) the quantity of dry matter on offer at the point of 90% maximum liveweight gain. Regressions of those three parameters on botanical composition accounted for over 90% of the variance. The effects of treatments on liveweight at other times of the year are also described. In the first year of grazing ammonium sulphate increased liveweight, apparently because of increased pasture on offer after emergence. In subsequent years the effect of ammonium sulphate was reversed: liveweight was reduced, and this was associated with lower nitrogen concentrations in, and lower quantities of, herbage produced. Wool elongation rates were greatest in spring and lowest prior to the germinating rains in autumn. Elongation rate was unaffected by stocking rate and only slightly affected by ammonium sulphate. From January to April, greatest elongation occurred on the grass-dominant N3 paddocks; from May to December greatest elongation occurred on the clover-dominant N0 paddocks. The implications of the role of nitrogen fertilizer in relation to sheep production in the winter rainfall regions of Australia are discussed.

Effects of superphosphate application and cutting interval on native pastures in the Clarence Valley, New South Wales

1978 ◽  
Vol 18 (94) ◽  
pp. 718 ◽  
Author(s):  
DL Garden ◽  
DR Brooks ◽  
J Bradley
Keyword(s):  
Crude Protein ◽  
Dry Matter ◽  
Phosphorus Content ◽  
New South ◽  
Dry Matter Yield ◽  
Botanical Composition ◽  
South Wales ◽  
Native Pasture ◽  
Cutting Interval ◽  
Native Pastures

The effects of superphosphate rate (nil; 250 kg ha-l initial with 125 kg ha-1 maintenance; and 500 kg ha-1 initial with 250 kg ha-1 maintenance) and cutting interval (2, 4, 6 or 8 weeks) on dry matter yield, growth rate, botanical composition and chemical composition of native pastures on a sandstone soil in the Clarence Valley, New South Wales were studied over a period of three years. Mean annual dry matter yield of unfertilized native pasture was 990 kg ha-l and this was increased to 1322 kg ha-1 at the higher rate of superphosphate. Dry matter yield was depressed from 1587 to 647 kg ha-1 by decreasing cutting interval from 8 weeks to 2 weeks. Pasture growth was limited to the September to May period and 87 per cent of the total annual production occurred in summer and autumn. Maximum growth occurred in the February/March period, with 16.2 kg ha-1 day-1 being the maximum recorded for the unfertilized pasture and 19.9 kg ha-1 day-1 for pasture at the higher rate of superphosphate. Changes in botanical composition were neither large nor consistent. Phosphorus content of the native pasture averaged 0.12 per cent. Crude protein content averaged 7.4 per cent, with levels in standing herbage in winter-spring falling to 3 per cent. Phosphorus yield was 1.1 kg ha-1 year-1 and crude protein yield was 65.8 kg ha-1 year-1. Superphosphate increased phosphorus content and yield, and crude protein yield. Increasing cutting interval decreased phosphorus and crude protein contents but increased phosphorus and crude protein yields by its effect on dry matter yield. Maximum yields obtained were 3.3 kg ha-1 year-1 phosphorus and 100 kg ha-1 year-1 crude protein. It was concluded that the increases obtained would be insufficient to produce worthwhile improvements in animal production, and that an increase in the legume content of these pastures is required before this could occur.

Improvement of yield and botanical composition in meadows: effects of N fertilisation, irrigation on locations having different water table levels

2009 ◽  
Vol 31 (3) ◽  
pp. 361 ◽  
Author(s):  
Binali Comakli ◽  
Kamil Haliloglu ◽  
Mahmut Dasci ◽  
Omer Mentese
Keyword(s):  
Water Table ◽  
Crude Protein ◽  
Dry Matter ◽  
Arid Regions ◽  
High Water ◽  
Botanical Composition ◽  
Nitrogen Application ◽  
Nitrogen Fertilisation ◽  
Matter Production ◽  
Different Soils

Meadows dominated by native herbaceous species and having a high water table are an important source of feed for livestock in semi-arid regions of Turkey. This research investigated the effects of nitrogen fertilisation (ammonium sulfate) on two meadows having different water table levels and different soils. Dry matter production was 8868 kg ha–1 at location 1 and 7276 kg ha–1 at location 2. The application of 225 kg N ha–1 increased the crude protein content of the forage from 7.1 to 10.8%. A level of 150 kg ha–1 (CP 9.6%) is recommended as a result of this study. Crude protein yield increased from 303 to 1113 kg ha–1 with the highest rate of nitrogen application. The percentage of grasses in the forage averaged 92.5% and the weeds averaged 7.5%. Increasing nitrogen fertilisation resulted in an increase in the grass percentage and a decrease in the proportion of weeds. The differences in water table depth between location 1 and location 2 were not consistent between the years, and these differences influenced the irrigation applications which were applied according to soil moisture criteria.

INFLUENCE DES CULTIVARS, DES DATES ET DES DOSES DE SEMIS SUR LE RENDEMENT ET LA QUALITÉ DE LA LUZERNE SEMÉE EN FIN D’ÉTÉ

1984 ◽  
Vol 64 (3) ◽  
pp. 667-675 ◽  
Author(s):  
L. BELZILE
Keyword(s):  
Medicago Sativa ◽  
Crude Protein ◽  
Dry Matter ◽  
First Year ◽  
Seeding Rate ◽  
Yield And Quality ◽  
Seeding Date ◽  
Yield Quality ◽  
Medicago Sativa L

The effects of cultivars, date and rate of seeding on the yield and quality of alfalfa (Medicago sativa L.) seeded at the end of summer and harvested the year after was studied from 1971 to 1975 on a Kamouraska clay. Seeding in early August gave the best results; seeding should not be carried out after mid-August. Differences between cultivars were more important on the third than on the first cut. Aftergrowth was an important factor on yield during the first year of harvest. Seeding rate did not always affect the yield, but the 6,7 kg/ha rate yielded less than the 13,4 kg/ha rate at the first cut and when the cuts were summed. The combined effects of the three factors studied indicates the importance of the seeding date on the height, cover and yield of alfalfa. Digestibility and crude protein content of the dry matter were affected more by seeding dates than by cultivars. The effect of cultivars on quality was variable and seeding rates had no effect. The variation in forage quality may be attributed to a difference in maturity of the plant at harvest, rather than only to the factors studied.Key words: Medicago sativa L., cultivar, date, rate, yield, quality

The intensive production of herbage for crop-drying: Part I. A study of the productivity of two annual crops and two leys and of their responses in yield and chemical composition to applications of nitrogenous manure

1948 ◽  
Vol 38 (4) ◽  
pp. 425-436 ◽  
Author(s):  
W. Holmes
Keyword(s):  
Chemical Composition ◽  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
First Year ◽  
Crude Protein Content ◽  
Annual Crops ◽  
Intensive Production ◽  
Second Year

SUMMARY1. The importance of uniform production of herbage for crop-drying is emphasized.2. A replicated experiment is described which compared four crops, two annuals and two leys under four manurial treatments which included a control and three applications of fertilizer (3½ cwt. ‘nitrochalk’) distributed during the season in three ways.3. Vetches yielded 2500–3000 lb. dry matter per acre of 28–30% crude-protein content in two cuts.Barley yielded 2500–3000 lb. dry matter per acre of 18–21% crude protein in five to six cuts.Leys yielded 4000–5000 lb. dry matter per acre of 15–18% crude protein in four cuts in their first year, and 5000–6000 lb. dry matter per acre of 15–18% crude protein in five cuts in their second year.

The intensive production of herbage for crop-drying Part V. The effect of continued massive applications of nitrogen with and without phosphate and potash on the yield of grassland herbage

1954 ◽  
Vol 45 (2) ◽  
pp. 129-140 ◽  
Author(s):  
W. Holmes ◽  
D. S. Maolusky
Keyword(s):  
Protein Content ◽  
Crude Protein ◽  
Dry Matter ◽  
Soil Analysis ◽  
Latin Square ◽  
Mineral Fertilizer ◽  
Small Scale ◽  
Fertilizer Nitrogen ◽  
Nitrogen Treatment ◽  
Nitrogen Treatments

1. A small-scale plot experiment which had been carried out from 1947 to 1949 (Holmes, 1951) to study the effect of massive dressings of nitrogen, with and without phosphate and potash, on the yield of a ryegrass dominant sward was continued in 1950–2. A 4 × 4 Graeco-Latin square was used.The nitrogen treatments applied each year were:(1) no nitrogenous fertilizer, (2) 260 lb., (3) 520 lb. and (4) 416 lb. (312 lb. in 1951) nitrogen per acre per annum applied in four or five equal dressings, one for each cut. Treatments 1, 2 and 3 were cut each time they reached the long leafy stage (8–11 in. in height), treatment 4 was cut when 13–16 in. in height.The mineral treatments were (A) no mineral fertilizer, (B) 336–538 lb. K2O per acre per annum depending on nitrogen treatment, (C) 120–180 lb. P2O5 per acre per annum, (D) treatments B and C combined. Mineral applications were applied in four or five dressings each year, one for each cut.2. Applications of phosphate did not affect the yield or protein content of the herbage, but yields were severely restricted in the absence of potash. Where potash was applied the yields under each nitrogen treatment were maintained or increased over the 6-year period. Average yields of dry matter for the 6-year period when potash was present were 4760, 8050, 9620 and 9320 lb. per acre per annum for treatments 1, 2, 3 and 4. Without potash the corresponding average yields were 3980, 5610, 5190 and 5100 lb. Average crude protein yields with potash were 710, 1410, 1990 and 1640 lb. per acre per annum and without potash 550, 1090, 1190 and 1020 lb.3. The presence of potash resulted in earlier growth in each season through the maintenance of the earlier vigorous grasses in the sward. Although the growth curve was variable with treatment 1, treatments 2, 3 and 4 gave nearly uniform distribution of herbage production over the season.4. The weighted mean contents of crude protein for each year ranged from 13·9% for treatment 1 to 20·6% for treatment 3 when potash was given and from 12·9% for treatment 1 to 23·6% for treatment 3 when potash was absent. There was a gradual increase in protein content at the later cuts in each season, but the range was less where nitrogen was applied.5. The efficiency of utilization of fertilizer nitrogen was calculated. When the yield was compared with that of a no-clover sward the average response was 15·6, 10·8 and 11·8 lb. dry matter per lb. of nitrogen applied for treatments 2, 3 and 4 respectively. In terms of crude protein the percentage recovery was 53, 44 and 42 respectively. When the yields were compared with those of the clovery swards the nitrogen recovery figures were reduced by about one-third.6. The botanical composition of the plots was determined by the nitrogen and potash treatments. Where both were adequate a vigorous sward of ryegrass and timothy was maintained. Where nitrogen was absent but potash present a clovery sward developed. In the absence of potash with or without nitrogen the better grasses declined and were replaced by poor grasses.7. Provided potash was applied there were no marked changes in the soil analysis.8. The results are discussed with particular reference to the maintenance of high grass yields and the relative roles of clover and fertilizer nitrogen.

EFFECT OF RATE AND TIME OF NITROGEN AND INTERVAL OF PHOSPHORUS AND POTASSIUM FERTILIZATION ON HERBAGE PRODUCTION ON PERMANENT PASTURE

1965 ◽  
Vol 45 (2) ◽  
pp. 153-164 ◽  
Author(s):  
L. B. MacLeod ◽  
L. P. Jackson ◽  
R. F. Bishop ◽  
C. R. MacEachern
Keyword(s):  
Soil Moisture ◽  
Dry Matter ◽  
Total Yield ◽  
Late Summer ◽  
Seasonal Distribution ◽  
Botanical Composition ◽  
Nitrogen Application ◽  
N Application ◽  
Permanent Pasture ◽  
Phosphorus And Potassium

In two 3-year cycles of a field experiment annual N treatments were superimposed on mineral treatments applied annually and triennially to a permanent pasture sward.Applications of P and K were reflected by changes in exchangeable K and acid-soluble plus adsorbed P. There was somewhat greater penetration of K than of P and soil levels of both were generally lowest where rate of N application was highest.Yields varied from year to year but tended to be more uniform with annual than with triennial mineral treatments. In the 6-year period average yields for all 0-, P-, K-, and P–K-treated plots were approximately 1.3, 1.6, 1.5, and 2.0 tons per acre of dry matter. Time of nitrogen application had little influence on total yield but seasonal distribution of herbage was much more uniform with nitrogen applied in summer than in spring. Soil moisture, which was a major factor in the response obtained with nitrogen applied in summer, was limiting during the late summer in two of the three years measured.Percentages of P and K in grass reflected the mineral treatments which had much less influence on botanical composition and species foliage cover than N. This element suppressed legumes, increased grass, and markedly influenced the K level in grass.

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