Coated and Uncoated Urea in Ramie Leaf Production

1984 ◽  
Vol 20 (3) ◽  
pp. 245-249 ◽  
Author(s):  
Apurba Sarkar ◽  
Gitasree Sarkar ◽  
Anupam Sarkar
Keyword(s):  
Dry Matter ◽  
The Other ◽  
Dry Matter Yield ◽  
Fresh Weight ◽  
Bast Fibre ◽  
Leaf Production ◽  
Neem Cake ◽  
Residual Nitrogen ◽  
Neem Cake Coated Urea ◽  
Coated Urea

SUMMARYRamie (Boehmeria nivea Gaud.), which can provide fodder in addition to bast fibre, was supplied with nitrogen in three different forms: as neem cake coated urea (NCU), lac coated urea (LCU) and standard urea, at rates of 60, 120, 180, 240 and 300 kg N ha−1 annually in four equal applications. The ramie was cut four times a year for two years. NCU increased fresh weight, leaf dry matter yield and leaf protein at almost every cutting compared with the other forms of nitrogen, and there was an indication of increased residual nitrogen in the soil. Leaf dry matter and protein content increased with increasing levels of nitrogen up to 180 kg ha−1. It is suggested that coating urea with neem cake makes it a better source of nitrogen for ramie leaf production.

Effect of Coated and Uncoated Urea on the Carry-over of Nitrogen from Jute to Paddy Rice in the Humid Sub-tropics

1989 ◽  
Vol 25 (2) ◽  
pp. 177-179
Author(s):  
Apurba Sarkar
Keyword(s):  
Grain Yield ◽  
Ammonium Sulphate ◽  
Dry Matter ◽  
Fertilizer Application ◽  
Paddy Rice ◽  
Neem Cake ◽  
Left Behind ◽  
Neem Cake Coated Urea ◽  
Coated Urea ◽  
Carry Over

SUMMARYPaddy rice was grown without fertilizer after jute which had been supplied with nitrogen as neem cake coated urea (NCU), wax coated urea (WCU), ammonium sulphate or standard urea at rates of 0, 40, 80 or 120 kg N ha−1. NCU or WCU applied to jute increased the dry matter and grain yield of the rice, suggesting that enough nitrogen is left behind to grow a subsequent rice crop without further fertilizer application.

scholarly journals Effect of Organic Manures on Growth, Rhizome Yield and Quality Attributes of Turmeric (Curcuma longa L.)

2012 ◽  
Vol 10 (1) ◽  
pp. 16-22 ◽  
Author(s):  
M. Z. U. Kamal ◽  
M. N. Yousuf
Keyword(s):  
Leaf Area ◽  
Dry Matter ◽  
Curcuma Longa ◽  
Dry Weight ◽  
Fresh Weight ◽  
Area Index ◽  
Yield Attributes ◽  
Organic Manures ◽  
Neem Cake ◽  
Yield And Quality

The investigation was carried out to evaluate the effect of different organic manures on turmeric with reference to vegetative growth, biomass production, rhizome yield and its attributes of turmeric (Curcuma longa L.). Turmeric showed better response to the application of organic manures. Plant with neem cake application had the taller plant (79.30 cm), maximum number of tillers per plant (5.40), leaf number (5.40), leaf area (44.09) leaf area index (0.429), fresh weight of halum ( 190.05g), fresh weight of root (49.13 g), fresh weight of rhizome per plant (256.21 g) and dry weight of halum (15.21g), dry weight of root (7.32 g), dry weight of rhizome per plant (40.35 g), total dry matter yield (6.85 t ha-1) than those received other types of manures. Moreover, yield attributes such as number of mother rhizomes per plant-1 (1.75), more number of primary rhizomes per plant-1 (5.19), secondary rhizomes per plant-1 (18.03) and tertiary rhizomes per plant (7.69) were also highly accelerated by neem cake application. Similarly, the same treatment expressed the best in terms of size of mother rhizome (7.69 cm), primary rhizome (21.86 cm) and secondary rhizomes (7.05 cm).All these parameters in cumulative contributed to  produce the highest estimated fresh rhizomes yield & cured rhizomes yield (29.48 t ha-1, 5.59 t ha-1 respectively). The highest curing percentage (20.28) was observed in T3 treatment having mustard cake@ 2.0 t/ha. Thus, organic manure like neem cake was best fitted natural fertilizer for turmeric cultivation.DOI: http://dx.doi.org/10.3329/agric.v10i1.11060The Agriculturists 2012; 10(1): 16-22

Effect of weeds and nitrogen fertiliser on yield and grain protein concentration of wheat

1996 ◽  
Vol 36 (4) ◽  
pp. 443 ◽  
Author(s):  
MG Mason ◽  
RW Madin
Keyword(s):  
Grain Yield ◽  
Weed Control ◽  
Dry Matter ◽  
Protein Concentration ◽  
The Other ◽  
Grain Protein ◽  
Dry Matter Yield ◽  
Wheat Grain ◽  
Grain Protein Concentration ◽  
Nitrogen Fertiliser

Field trials at Beverley (19911, Salmon Gums (1991; 2 sites) and Merredin (1992; 2 sites), each with 5 rates of nitrogen (N) and 3 levels of weed control, were used to investigate the effect of weeds and N on wheat grain yield and protein concentration during 1991 and 1992. Weeds in the study were grasses (G) and broadleaf (BL). Weeds reduced both vegetative dry matter yield and grain yield of wheat at all sites except for dry matter at Merredin (BL). Nitrogen fertiliser increased wheat dry matter yield at all sites. Nitrogen increased wheat grain yield at Beverley and Merredin (BL), but decreased yield at both Salmon Gums sites in 1991. Nitrogen fertiliser increased grain protein concentration at all 5 sites-at all rates for 3 sites [Salmon Gums (G) and (BL) and Merredin (G)] and at rates of 69 kg N/ha or more at the other 2 sites [Beverley and Merredin (BL)]. However, the effect of weeds on grain protein varied across sites. At Merredin (G) protein concentration was higher where there was no weed control, possibly due to competition for soil moisture by the greater weed burden. At Salmon Gums (G), grain protein concentration was greater when weeds were controlled than in the presence of weeds, probably due to competition for N between crop and weeds. In the other 3 trials, there was no effect of weeds on grain protein. The effect of weeds on grain protein appears complex and depends on competition between crop and weeds for N and for water at the end of the season, and the interaction between the two.

Effect of green manuring, blue-green algae and neem-cake-coated urea on wetland rice (Oryza sativa L.)

1990 ◽  
Vol 9 (3) ◽  
pp. 235-238 ◽  
Author(s):  
S. Singh ◽  
R. Prasad ◽  
B. V. Singh ◽  
S. K. Goyal ◽  
S. N. Sharma
Keyword(s):  
Oryza Sativa ◽  
Green Algae ◽  
Oryza Sativa L ◽  
Wetland Rice ◽  
Green Manuring ◽  
Blue Green Algae ◽  
Neem Cake ◽  
Neem Cake Coated Urea ◽  
Coated Urea

Fire and survival of Stylosanthes spp. in the dry savanna woodlands of the Northern Territory

1982 ◽  
Vol 33 (2) ◽  
pp. 203 ◽  
Author(s):  
JJ Mott
Keyword(s):  
Dry Matter ◽  
Northern Territory ◽  
The Other ◽  
Dry Matter Yield ◽  
Stocking Rate ◽  
Wet Season ◽  
Native Grass ◽  
Hard Seed ◽  
Stylosanthes Humilis ◽  
Good Germination

A series of burns was carried out during the early and late, dry season and early wet season, in mixed native grass-legume plots containing Stylosanthes humilis, S. hamata, S, scabra and S. viscosa as the legume component. The least mortality was shown by S. scabra, but its survival was poor in any sward more than 3 years old. After burning the other species relied solely on seedling regeneration for subsequent season's growth. Fire killed a considerable quantity of seed, but its heat softened hard seed in the soil and good germination occurred with summer rains. However, the presence of a large proportion of soft seed through the winter months could lead to out-of-season germination and subsequent death of seedlings after unseasonal winter rains. Although the total dry matter yield of swards was reduced by all fires, burning could play an important part in increasing yields of S. hamata in swards overgrown by dense native grass, since it increases the amount of soft seed in the soil. If burning causes a high mortality of mature plants of the perennials S. scabra and S. viscosa, a reduction in stocking rate may be needed to ensure regeneration of a productive sward, as these species have slow seedling growth rates.

EFFECT OF DATES OF CUTTING ON DRY MATTER PRODUCTION AND CHEMICAL CONTENT OF ALFALFA AND BIRDSFOOT TREFOIL

1969 ◽  
Vol 49 (3) ◽  
pp. 339-349 ◽  
Author(s):  
H. Gasser ◽  
L. Lachance ◽  
P. Gervais
Keyword(s):  
Nitrogen Content ◽  
Protein Content ◽  
Dry Matter ◽  
The Other ◽  
Dry Matter Production ◽  
Birdsfoot Trefoil ◽  
Dry Matter Yield ◽  
Matter Production ◽  
Chemical Content

In two experiments, one with alfalfa and the other with birdsfoot trefoil, we have been able to show that a late cut in October does not adversely affect dry matter yield (DAI) of the legumes. Three cuts during a harvesting season ending on September 5 were detrimental to alfalfa, since lower yields were obtained the following year of harvest. Birdsfoot trefoil varieties were affected differentially. Three cuts did not affect the yield of Viking the following year, but did so of Empire. Significant differences in dry matter yields were obtained between DuPuits and Vernal and between Viking and Empire. Protein in the forage followed inversely the same pattern as that of DM yields, that is, where the intervals were shortest, the protein content was highest, and conversely. The total available carbohydrate and the nitrogen content of the roots were lowest following the treatments which had the shortest intervals between them.

CULTIVAR-ENVIRONMENT INTERACTIONS IN RED CLOVER

1984 ◽  
Vol 64 (1) ◽  
pp. 139-144 ◽  
Author(s):  
T. M. CHOO ◽  
N. N. COULSON ◽  
J. E. LANGILLE ◽  
A. F. RAYMENT ◽  
J. S. BUBAR ◽  
...  
Keyword(s):  
Dry Matter ◽  
Trifolium Pratense ◽  
Red Clover ◽  
The Other ◽  
Environment Interaction ◽  
Dry Matter Yield ◽  
Population Average ◽  
Trifolium Pratense L ◽  
Yield Difference ◽  
Interaction Variance

The performance of nine double-cut and three single-cut red clover (Trifolium pratense L.) cultivars was studied at five locations in Atlantic Canada. The single-cut clovers survived relatively well at all locations while the double-cut clovers did not survive well at one location during the first winter. An analysis of data for total dry-matter yield from five environments, i.e., location-year combinations, showed that the single-cut clovers outyielded the double-cut clovers in Newfoundland but yielded lower at the other locations. Among the double-cut cultivars, Florex, Lakeland, Tapiopoly, and Violetta were found to be desirable cultivars because they had a high mean yield and did not yield lower than the population average at any of the five environments. A large cultivar-environment interaction variance was detected for the double-cut cultivars; therefore, at least 15 test environments are required in future trials in order to detect a yield difference of 6% by multiple comparison procedures.Key words: Trifolium pratense L., stability

Effects of Quinclorac on Following Rotational Crops

1999 ◽  
Vol 13 (3) ◽  
pp. 548-553 ◽  
Author(s):  
James R. Moyer ◽  
Rudy Esau ◽  
A. Lyle Boswall
Keyword(s):  
Solanum Tuberosum ◽  
Dry Matter ◽  
The Other ◽  
Growth Chamber ◽  
Western Canada ◽  
Dry Matter Yield ◽  
Agricultural Systems ◽  
Oilseed Crops ◽  
Risk Of Injury ◽  
Drought Conditions

Quinclorac was registered for weed control in wheat (Triticum spp.) for western Canada in 1997. Residues from quinclorac may persist in the soil and may damage following crops; therefore, field and growth chamber experiments were conducted to determine the tolerance of several following rotational crops. Cereals and bromegrass (Bromus biebersteinii) were sufficiently tolerant that they could be seeded within 16 d of quinclorac application without risk of injury. At the other extreme, marketable and total potato (Solanum tuberosum) yields were reduced by quinclorac on irrigated land 1 yr after application. Growth chamber experiments were used to rank crops in order of their tolerance of quinclorac residues and to compare the tolerance of crops that were grown in the field with additional crops. Quinclorac injured several legume and oilseed crops when the crops were seeded immediately after application, but quinclorac did not reduce the dry matter yield of two of the most sensitive legumes, faba bean (Vicia faba) and alfalfa (Medicago sativa), 1 yr after application on irrigated land. However, based on a previous study, one can conclude that injury to these crops may occur in the field under drought conditions in rain-fed agricultural systems.

Effects of perennial ryegrass cultivar, duration of lock up and nitrogen fertiliser application on dairy pasture dry matter yield and quality for silage in south-western Victoria

2001 ◽  
Vol 41 (1) ◽  
pp. 45 ◽  
Author(s):  
J. L. Jacobs ◽  
F. R. McKenzie ◽  
G. N. Ward ◽  
G. Kearney
Keyword(s):  
Perennial Ryegrass ◽  
Dry Matter ◽  
Water Soluble ◽  
The Other ◽  
Harvest Date ◽  
Dry Matter Yield ◽  
N Application ◽  
Dry Matter Digestibility ◽  
Metabolisable Energy ◽  
Western Victoria

A study in south-western Victoria determined effects of 3 perennial ryegrass (Lolium perenne L.) cultivars (Vedette, Impact and Nevis) with differing maturities, duration of lock up and nitrogen (N) application on the dry matter yield and nutritive characteristics of pasture for silage. Treatments were cultivar (3), N (0 and 50 kg N/ha) and duration of lock up (5–10 weeks) arranged in a completely randomised design in 3 by 5 m plots replicated 3 times. Plots were mown to a uniform height (5 cm) on 14 September 1998 (first day of lock up) and 1 week later N was applied as urea (46% N) at either 0 or 50 kg N/ha to the respective plots. Weekly sampling commenced on 19 October (week 5 of lock up), and continued until 23 November. For each treatment and harvest date, dry matter yield and botanical composition were determined, and samples of total pasture and the ryegrass fraction were collected and chemically analysed for dry matter digestibility, concentrations of crude protein, neutral detergent fibre, water-soluble carbohydrates and minerals. Metabolisable energy was derived from dry matter digestibility. All pasture types were predominantly ryegrass (>90%) with no differences in the nutritive characteristics of total pasture swards or the respective ryegrass fraction. Nitrogen at 50 kg N/ha significantly (P<0.05) increased dry matter yield for all cultivars. Metabolisable energy (MJ/kg DM) of the pasture declined with time for all treatments, with Vedette having a significantly (P<0.05) greater rate of decline than the other cultivars. Vedette reached early ear emergence about 3 weeks earlier (week 7) than the other cultivars. The harvestable metabolisable energy yield (MJ/ha) at ear emergence was highest for Impact, followed by Nevis and Vedette. In conclusion, there is potential to use later-maturing cultivars of ryegrass in south-eastern Australia to allow for later harvesting of forage for silage, while maintaining metabolisable energy and maximising dry matter yields. Furthermore, the use of N fertiliser can also increase dry matter yields without impinging on pasture quality provided the time between N application and harvest date does not exceed 5–6 weeks.

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