Journal of the Korea Organic Resources Recycling Association
/
v.4
no.1
/
pp.33-42
/
1996
In this study, the adequate cutting frequency and level of cattle slurry nitrogen application were investigated for the production of Reed canarygrass. Higher relative dry matter yields were recorded in 2nd cut in 3 cutting frequency, 3rd cut in 4 cutting frequency and 4th cut in 5 cutting frequency respectively. With no fertilization, mean dry matter yields per year were 6.4~7.5 tons/ha and the highest yield appeared in 3 cutting frequency. The increased application of cattle slurry nitrogen resulted in the increased dry matter yield. Significantly higher dry matter yields than that of no fertilization were recorded in fertilization of 180 kg cattle slurry-N per year in 3 cutting frequency, 120 kg in 4 cutting frequency and 300 kg in 5 cutting frequency respectively. Efficiency of dry matter production with cattle slurry nitrogen application (kg DM/kg N) was higher in 120 kg N, 30 kg N and 90 kg N/ha/cut in 3, 4 and 5 cutting frequency respectively. In each cutting frequency, the higher efficiency of dry matter production appeared in 1st cut in 3 cutting frequency, and 2nd cut in 4 and 5 cutting frequency respectively. Economic slurry N level (kg/ha) was 462.7~525.3 kg/ha in 3 cutting frequency, and 353.1~423.2 kg/ha and 380.1~424.4 kg/ha in 4 and 5 cutting frequency respectively.
Journal of the Korea Organic Resources Recycling Association
/
v.2
no.2
/
pp.53-63
/
1994
In order to investigate the effects of application rates of mineral N and cattle slurry on the dry matter yield of Reed canarygrass grown in different cutting frequency, was was cernpared for the efficiency of N utilization. Annual rates of mineral N and cattle slurry N of 0 (control), 90kg, 180kg, 270kg and 360kg/ha in 3 cuttings, 0, 120kg, 240kg, 360kg and 480kg/ha in 4 cuttings, and 0, 150kg, 300kg, 450kg and 600kg/ha were applied as urea and cattle slurry in 5 cuttings, respectively. The results were summarized as follows: 1. The annual dry matter yields were increased with application rates of mineral N and cattle slurry. The annual dry matter yields of mineral N obtained were 14.4 ton/ha(ranged from 10.46 ton to 16.91 ton/ha) in 3 cuttings, 13.88 ton/ha(ranged from 9.91 ton to 16.53 ton/ha) in 4 cuttings and 15.98 ton/ha(ranged from 12.0 ton to 18.25 ton/ha) in 5 cuttings. The annual dry matter yields of cattle slurry obtained were 12.14ton/ha(ranged from 8.92 ton to 11.79ton/ha) in 3 cuttings, 10.81ton/ha(ranged from 8.92 to 11.79 ton/ha) in 4 cuttings and 12.98ton/ha(ranged from 10.68 ton to 14.85ton/ha) in 5 cuttings. 2. Relative dry matter yield of cattle slurry as compared to mineral N were 84.3%, 77.9% and 81.2% in 3, 4 and 5 cuttings. 3. Average increase in dry matter production(kgDM/kgN) tended to decrease with application rates of mineral N and cattle slurry, and higher cutting frequencies. Average increase in dry matter production obtained were higher values at rates of 30kg/ha/cut in both of mineral N and cattle slurry. Average increase in dry matter production to mineral N were 23.9kg, 18.8kg and 15.2kgin 3, 4 and 5 cuttings, respectively. 4. Average increase in total nitrogen yield(kgTN/kgN) to mineral N obtained were 0.46kg at rates of 60kg/ha/cut in 3 cuttings, and 0.45kg and 0.40kg at rates of 30kg/ha/cut in 4 and 5 cuttings. 5. Average increase in dry matter production(kgDM/kgN) to cattle slurry obtained were 13.7kg and 19.5kg at rates of 30kg/ha/cut in 3 and 4 cuttings, and 9.7kg at rates of 60kg/ha/cut in 5 cuttings. 6. Average increase in total nitrogen yield(kgTN/kgN) to cattle slurry was not concern to the rates of application. Average increase in total nitrogen yield to cattle slurry obtained were 0.11kg, 0.20kg and 0.21kg in 3, 4 and 5 cuttings. 7. Relative average increase in dry matter production of cattle slurry as compared to mineral N were 33.1%, 52.1% and 50.0% in 3, 4 and 5 cuttings. Relative average increase in total nitrogen yield of cattle slurry as compared to mineral N were 28.9%, 51.3% and 55.3% in 3, 4 and 5 cuttings.
Dry matter yield of reed canarygrass was investigated in uncultivated rice paddy in Korea, and an attempt was made to estimate the most economic and efficient cutting frequency and rates of nitrogen (N) fertilization, for increased production of reed canarygrass. Total dry matter yields of reed canarygrass per year were 7.4-15.7, 8.5-16.1, and 7.5-13.4 tons/ha in 3, 4, and 5 cutting frequencies, respectively, and over the N treatments of 0-120 kg N/ha/cut. When cut 3 or 5 times annually, the 2nd cut produced the highest proportion of total yield at 38.4 and 33.0%, respectively, when cut 4 times the 3rd cut was highest (38.3%). The ranges of economic N level, limiting N level and efficiency of dry matter production were 243.3-293.0, 387.2, and 14.6 kg DM/kg N, respectively. These indicators were particularly low for the 5 cutting frequency possibly because of the unusually high temperature in the summer season. The best cutting frequency for the dry matter production of reed canarygrass in 1994 was 3 per year because of the higher efficiency of dry matter production.
Journal of The Korean Society of Grassland and Forage Science
/
v.14
no.4
/
pp.271-280
/
1994
The aim of this experiment was to investigate the effects of fertilizing mineral nitrogen on dry matter yield of Reed canarygrass and also to estimate proper levels of fertilizing nitrogen when uncultivated rice paddy rapidly increased these days, was used for the production if Reed canarygrass. \ulcornerhe results are as follows. 1. Relative dry matter according to cutting frequency was appeared the highest at the 2nd cut for 3 and 4 cutting frequencies, and the 3rd cut for 5 cutting frequency. Those were 43.1, 34.0 and 34.1 % respectively. 2. When using only phosphrous and potassium, the average dry matter per year and ha was between 9.0 and 12.0 tons(3, 4 and 5 cutting frequency) and the highest dry matter was shown at 5 cutting frequency. 3. In accordance to the increase in the fertilization of nitorgen, the yield of dry matter was increased and, when 30 kg/ha/cut of mineral nitrogen was added, the biggest increase rate per added nitrogen for dry matter yield per year compared to that of no fe~tilization of nitrogen was recorded and it was 2.7, 3.3, and 3.4 tons/ ha for 3, 4 and 5 cutting frequencies respectively. 4. The efficiencies of mineral nitrogen on dry matter yield(DM kg/N kg) were the highest when 30kg nitrogen was applied particularly in 3, 4 and 5 cutting frequencies(29.7, 27.2, 22.8 DM kg/N kg). It recorded the highest of all the treatments. The efficiency was actually decreased in higher application of mineral nitrogen. The total nitrogen yield efficiency was the highest in 30kg(0.45kg and 0.48kg at 4 and 5 cutting frequency) and 60kg fertilization/ha/cut (0.46kg at 3 cuting frequency) and the decreased efficiencies appeared at fertilization of higher nitrogen. 5. Economical borden of mineral nitrogen fertilization were between 199.2 and 243.3kglha at 3 cutting frequency, between 253.4 and 295.9kg at 4 cutting frequency and between 302.2 and 361.3kg at 5 cutting frequency. 6. Under the condition of this experiment, the cutting frequency leading the potential production at maximum was 3 cutting frequency. At 3 cutting frequency, the efficiency of nitrogen utilization was higher and 15 or 16 tons of dry matter was obtained which is a level of economical border at fertilization between 200 and 240kglha. It wrs possible to obtain the maximal dry matter yield(l7 tonslha) at fertilization of lower level than 400kgl ha.
This experiment was conducted to investigate effects of application of diluted and undiluted cattle slurry with water on seasonal and annual dry matter yields and feed values of tall fescue in the uncultivated rice paddy and it was compared with chemical fertilizer. Annual dry matter yields for diluted (average 6.43 ton DM/ha) and undiluted (average 6.56 ton DM/ha) cattle slurry were significantly higher (p<0.05) than those of no fertilizer (3.82 ton DM/ha). This trend was much more conspicuous in treatments applied in spring. In chemical fertilizer treatments, fertilizers with P and K (6.12 ton DM/ha), and P, K and N (10.13 ton DM/ha) had significantly (p<0.05) higher dry matter yields compared with no fertilizer. However, annual dry matter yields for treatments of P and K mixture tended to be lower than those of cattle slurry applications. The efficiency of DM production for inorganic nitrogen in chemical fertilizers annually averaged 26.7kg DM/kg N. In terms of cutting frequencies, it was highest in 2nd growth followed by 1st and 3rd growth. On the other hand, efficiencies of annual DM production of nitrogen for diluted and undiluted cattle slurry were 18.3 and 17.4 kg DM/kg N, respectively, especially, highest in 2nd growth. While, efficiencies of DM production for cattle slurry versus for inorganic nitrogen were 68.5 (undiluted) and 65.2% (diluted), respectively. For annual crude protein contents of tall fescue, no fertilization (11.5%) was significantly higher than chemical fertilizer, but that was lower than cattle slurry ($12.4{\sim}12.6%$) diluted with water. on the contrary, no fertilizers had significantly lower NDF (64.1%) and ADF (37.2%) contents than those of any other treatments, but their RFV (87.0) was significantly higher (p<0.05) than other treatments. The application of cattle slurry and their dilution significantly increased yields of crude protein and total digestible nutrients compared with no and/or P and K fertilizers (p<0.05). This trend was more conspicuous in cattle slurry applied in the early spring.
Journal of the Korea Organic Resources Recycling Association
/
v.6
no.2
/
pp.81-93
/
1998
In order to estimate the an adequate application level for dry matter production of orchardgrass(Dactylis glomerata L.) were investigated in different application levels of food waste compost and mineral nitrogen in 3 cuttings per annum, and to evaluated the soil improving effect of food waste compost. Annual food waste compost and mineral nitrogen were applied at levels of 0, 10, 20, 40 and $60ton\;ha^{-1}$, and 0, 90, 180 and $270kg\;ha^{-1}$, respectively. Significantly higher dry matter yield of orchardgrass obtained were ranges of $8.92{\sim}9.70ton\;ha-1$ at levels of $180{\sim}270kg\;ha^{-1}\;yr^{-1}$ than that of other levels of mineral nitrogen. Relative yield of each cut to annual dry matter yield were 32.0% 49.2% and 18.8% for 1st cut, 2nd cut and 3rd cut in mineral nitrogen treatment. Significantly higher dry matter yield of orchardgrass obtained were ranges of $8.04{\sim}8.90ton\;ha^{-1}$ at levels of $20{\sim}60ton\;ha^{-1}\;yr^{-1}$ than that of other levels of food waste compost. The efficiency of dry matter production to application of mineral nitrogen(kg DM $kg^{-1}$ N) were 21.2, 19.0 and 15.6kg at levels of 90, 180 and $270kg\;ha^{-1}\;yr^{-1}$, respectively. Higher efficiency of dry matter Production obtained were 27.6~20.2 kg at levels of $90{\sim}180kg\;ha^{-1}$ of mineral nitrogen applied to $20ton\;ha^{-1}$ of food waste compost, it may due to accelerated mineralization by mineral nitrogen application. Highest efficiency of dry matter production to application of food waste compost (kg DM $ton^{-1}$ FWC) obtained was 71.0 kg at level of $40ton\;ha^{-1}\;yr^{-1}$. Maximum dry matter yield of orchardgrass obtained were $9.98ton\;ha^{-1}$ at limiting level of mineral nitrogen of $358.5kg\;ha^{-1}$ and $9.12ton\;ha^{-1}$ at limiting level of food waste compost of $49.3ton\;ha^{-1}$ per annum, respectively. Ranges of $20{\sim}49.3ton\;ha^{-1}$ of food waste compost and $180{\sim}358.5kg\;ha^{-1}$ of mineral nitrogen were estimated an adequate levels for increase in dry matter production, and to maintenance for orchardgrass pastures. Application of food waste compost was affected to improve the soil characteristics.
Journal of The Korean Society of Grassland and Forage Science
/
v.15
no.3
/
pp.164-168
/
1995
A field experiment was carried out to determine the effects of nitrogen (N) fertilization levels after first harvest (0, 30, 60, 90 and 120 kglha) during spring season on the gms growth, dry matter (DM) yield, nutritive value, and efficiency of DM production per N kg applied in orchardgrass meadow. Additional N was applicated at early spring (70 kg), after second harvest (50 kg), and after fourth harvest (30 kg/ha) in all treatments, 1990. Growth and DM yield of orchardgrass at second harvest were significantly increased with increasing level of N after first harvest (P<0.05), but no yield differences were observed between application of N 60, N 90, and N 120 kg. The efficiency of DM increment per N kg applied was rapidly decreased with increasing level of N; that was 14.8, 12.0, 10.7 and 4.7 DM kg/N kgha in the plot of N 30, N 60, N 90 and N 120 kg, respectively. The content and yield of crude protein of orchardgrass at second harvest were significantly increased with increasing of N (P<0.05), ranged h r n 11.0% (N 0 kg) to 16.8% (N 120 kg), and from 195.0 kg (N 0 kg) to 508.2 kglha (N 120 kg), respectively. However, the content of neutral detergent fiber was not affected by N level after first harvest. From the above results, it is suggested that application of N fertilizer after first harvest was very effective for regrowth and nutritive value of orchardgrass during spring season, and the proper amount of N after first harvest was 60-90 kglha in this experiment.
Journal of The Korean Society of Grassland and Forage Science
/
v.15
no.3
/
pp.175-185
/
1995
This experiment was carried out to investigate the optimum rates of animal excreta(cattle slurry-N) for the highest dry matter production and improve the nutritive values of reed canarygrass with different cutting frequency. The results are summarized as follows; The highest relative dry matter yields for annual dry matter yield were 42.2% and 45.2% at 3rd cut in 3 and 4 cuttings, and 34.7% at 4th cut in 5 cuttings, respectively. The annual dry matter yields of non slurry-N application plot showed were from 6.8 tons to 8.0 tons/ha in all cutting frequencies. The highest annual dry matter yield obtained was in 3 cuttings. The annual dry matter yield increased with an increase of applied rates of slurry-N in all cutting frequencies. Annual dry matter yield was produced by 3.3 tons/ha at rates of 90 kg N/ha/cut in 3 cuttings, and more 1.7 tonsha and 2.4 tons/ha at rates of 30 kg N/ha/cut in 4 and 5 cuttings than that of non slurry-N application plots. The contents of crude protein were 12.01% and 15.0% at rates of 90 kg N/ha/cut in 3 and 4 cuttings, and 16.59% at rates of 120 kg N/ha/cut in 5 cuttings, respectively. On the contrary, the content of acid detergent fibre(ADF) showed the lowest values at same rates of slurry-N application in each cutting. J. The average content of crude protein was significantly increased with cutting frequencies, and they were 11.43%, 13.53% and 15.53% in 3, 4 and 5 cuttings, respectively. The average contents of acid detergent fibre(ADF) were 40.27%, 40.53% and 37.06% in 3, 4 and 5 cuttings. The values of 5 cuttings were significantly lower than other cutting frequencies, but the values of acid detergent fibre(ADF) was not significantly different between 3 and 4 cuttings. 6. The efficiency of dry matter production to slurry-N application rates showed the highest values of 18.9 kg and 15.7 kg DM/kg N at rates of 30 kg N/ha/cut in 3 and 5 cuttings, and 16.3 kg DM/kg/ N at rates of 90 kg N/ ha/cut in 4 cuttings. The efficiency of total nitrogen yield to slurry-N application rates were the highest values of 0.51 kg and 0.43 kg W k g N at rates of 30 kg N/ha/cut in 4 and 5 cuttings, and 0.52 kg TN/kg N at rates of 90 kg N/ha/cut in 3 cuttings, respectively. 7. The ranges of economic slurry-N rates were estimated as the 107.2-151.0 kglha, 359.1-375.7 kgha and 160.3-236.9 kg/ha in 3, 4 and 5 cuttings, and marginal dry matter yields were 9.6-10.0 tons/ha, 12.4-12.6 tons/ha and 9.0-9.7 tons/ha in 3, 4 and 5 cuttings, respectively. 8. The limiting sluny-N application rates to maintain the highest dry matter yields were estimated to be 420.0 kg/ ha, 440.6 kg/ha and 666.3 kg/ha in 3, 4 and 5 cuttings.
Journal of The Korean Society of Grassland and Forage Science
/
v.18
no.3
/
pp.205-216
/
1998
In order to investigate the short-term effect of cattle slurry N application on dry matter yield of reed canarygrass(Phalaris arundinacea L.) in uncultivated rice paddy during the harvested years in 1993~1995. Annual cattle slurry N was applied at the levels of 0, 90, 180, 270 and 360 kg $ha^{-1}$ in 3 cuttings, 0, 120, 240, 360 and 480 kg $ha^{-1}$ in 4 cuttings, and 0, 150, 300, 450 and 600 kg $ha^{-1}$ in 5 cutting, respectively. The results were summarized as follows; 1. The dry matter yields of all cutting frequencies in 1993 were higher than in other harvested years. 2. Significantly higher dry matter yields were obtained as 13.10 tons $ha^{-1}$ at level of 360 kg $ha^{-1}\;yr^{-1}$ in 3 cuttings, 12.50-12.83 tons $ha^{-1}$ at levels of 360-480kg $ha^{-1}\;yr^{-1}$ in 4 cuttings, and 12.52-12.56 tons $ha^{-1}$at levels of 450-600 kg $ha^{-1}$$yr^{-1}$in 5 cuttings, respectively. 3. Efficiency of dry matter production(kg DM $kg^{-1}$ N) to cattle slurry N application tended to decrease with higher levels of cattle slurry N application and cutting frequencies. Higher efficiencies of dry matter production to cattle slurry N application were obtained as 15.2 kg at N level of 90 kg $ha^{-1}\;yr^{-1}$in 3 cuttings, 19.8 kg at level of 120 kg $ha^{-1}\;yr^{-1}$ in 4 cuttings, and 10.0 kg at level of 150 kg $ha^{-1}\;yr^{-1}$ in 5 cuttings, respectively. 4. The highest relative yields(RY) in different cutting frequency were 38.1% for 2nd cut in 3 cuttings, 41.8% for 3rd cut in 4 cuttings, and 30.1% for 4th cut in 5 cuttings, respectively. 5. The estimated ranges of marginal dry matter yield(Ymar.) were 11.5~12.1 tons $ha^{-1}$ at the ranges of economic N level of 261.0~304.6 kg $ha^{-1}\;$yr^{-1}$ in 3 cuttings, 10.4~11.5 tons $ha^{-1}$ at the ranges of economic N level of 205~302.9 kg $ha^{-1}\;yr^{-1}$ in 4 cuttings, and 11.1~11.6 tons $ha^{-1}$ at the ranges of economic N level of 303.8~354.4 kg $ha^{-1}$ 5 cuttings, respectively. 6. Ranges of economic slurry N level(Necon.) in all cuts were 67.9~95.0 kg $ha^{-1}$ in 3 cuttings, 14.3~119.8 kg $ha^{-1}$in 4 cuttings, and 50.9-125.2 kg $ha^{-1}$ in 5 cutting, respectively. 7. The 3 cuttings per annum was a proper cutting frequency for the increase in dry matter production of reed canarygrass using uncultivated rice paddy.
Bastos, Milena Patricia Viana;Carvalho, Gleidson Giordano Pinto De;Pires, Aureliano Jose Vieira;Silva, Roberio Rodrigues;Filho, Antonio Eustaquio;Santos, Edileusa De Jesus Dos;Chagas, Daiane Maria Trindade;Barroso, Daniele Soares;Filho, George Abreu
Asian-Australasian Journal of Animal Sciences
/
v.27
no.1
/
pp.24-29
/
2014
The objective of this study was to assess the effect of substituting corn with soybean hulls on the ingestive behavior and nitrogen balance of Santa Ines lambs. A total of 25 lambs with an initial body weight of $20{\pm}2$ kg at approximately six months of age, sheltered individually in stalls ($1.10m{\times}1.0m$), considering an entirely casual experimental delineation. Soybean hulls were substituted for corn at 0, 250, 500, 750, and 1,000 g/kg of dry matter (DM). The time spent feeding, ruminating, masticating, and resting was not affected by the substitution of corn with soybean hulls. In fact, the feeding efficiency in g DM/h and the rumination efficiency in g DM/bolus increased linearly with soybean hull substitution in the feed. Although the nitrogen balance was not altered by the use of soybean hulls as a substitute for corn in the diets of Santa Ines lambs, the N ingested and N digested expressed in g/d, N retained as a percentage of that ingested, and N retained as a percentage of that digested displayed quadratic behavior. In conclusion, corn can be substituted with soybean hulls up to 1,000 g/kg of dry matter in the concentrate, without changing the ingestive behavior and nitrogen balance.
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