Effect of Harvest Frequency and Nitrogen Fertilization on Estimated Total Digestible Nutrients of Orchardgrass ( Dactylis glomerata L.) Regrowth 1

1969 ◽  
Vol 61 (3) ◽  
pp. 433-435 ◽  
Author(s):  
J. H. Reynolds ◽  
K. M. Barth ◽  
M. E. Fryer
Keyword(s):  
Nitrogen Fertilization ◽  
Dactylis Glomerata ◽  
Harvest Frequency ◽  
Dactylis Glomerata L

scholarly journals The use of compressed height to estimate the yield of a differently fertilized meadow

2018 ◽  
Vol 64 (No. 2) ◽  
pp. 76-81 ◽  
Author(s):  
Cudlín Ondřej ◽  
Hakl Josef ◽  
Hejcman Michal ◽  
Cudlín Pavel
Keyword(s):  
Plant Species ◽  
Nitrogen Fertilization ◽  
Dry Matter ◽  
Vascular Plant ◽  
Dactylis Glomerata ◽  
Urtica Dioica ◽  
Plant Species Composition ◽  
Dry Matter Yield ◽  
The Czech Republic ◽  
Dactylis Glomerata L

Monitoring of grassland dry matter yield (DMY) is important for the economy and ecosystem management, but it is a time-consuming process. Calculating the correlation between compressed height (CH) and DMY is a faster way to estimate DMY. The aim of our study was to use CH in order to predict DMY for a meadow with different fertilization management and plant species composition. Four fertilization treatments and one unfertilized control were established in a mesophilic meadow in the Czech Republic. Using a rising plate meter (RPM), CH was measured before the first and second cuts. In addition, the cover of individual vascular plant species was estimated. Significant correlations between CH and DMY were ranging from 0.41 to 0.79 for treatments without nitrogen fertilization in the first and second cuts; for treatments with nitrogen fertilization there was a significant correlation only in the second cut. According to our results, the RPM method seems to be suitable for a rough DMY estimate for meadows with coverage of about 60% grasses, 10% legumes and 30% forbs. However, considerable changes in the cover of tall forbs (e.g. Urtica dioica L.) or tall grasses (e.g. Dactylis glomerata L.) could be the main sources of DMY estimation inaccuracy.

EFFECTS OF CLIPPING AND NITROGEN ON COMPETITION BETWEEN THREE PASTURE SPECIES

1961 ◽  
Vol 41 (3) ◽  
pp. 631-642 ◽  
Author(s):  
D. B. Wilson ◽  
W. S. MoGuire
Keyword(s):  
Nitrogen Fertilization ◽  
Incident Light ◽  
Maximum Yield ◽  
Dactylis Glomerata ◽  
Festuca Rubra ◽  
Light Penetration ◽  
Area Index ◽  
Red Fescue ◽  
Trifolium Repens L ◽  
Dactylis Glomerata L

In three herbage mixtures comprised of different combinations of orchardgrass, Dactylis glomerata L., creeping red fescue, Festuca rubra L., and common white clover, Trifolium repens L., highest yields of the grasses were obtained when 1) harvesting was delayed until only 2 per cent of the incident light near mid-day penetrated to the base of the sward rather than at 10 per cent penetration, 2) a 2-inch rather than a 4-inch stubble was left after cutting, and 3) nitrogen fertilizer was applied. The same cutting treatments gave maximum yields of the associated clover without nitrogen fertilization, but when nitrogen was applied higher clover yields were obtained when cutting was at 10 per cent light penetration. Yields of the two grasses were approximately the same when grown with clover only, but in the two-grass association orchardgrass held the fescue to a low proportion in the mixture.Results did not support the concept of maintaining a specified minimum leaf area index (LAI) for maximum yield of the herbage mixture.

Influence of N Fertilization and N Carryover on Yield and N Concentration of Dactylis glomerata L. 1

1973 ◽  
Vol 65 (4) ◽  
pp. 671-674 ◽  
Author(s):  
S. J. Donohue ◽  
C. L. Rhykerd ◽  
D. A. Holt ◽  
C. H. Noller
Keyword(s):  
Dactylis Glomerata ◽  
N Fertilization ◽  
N Concentration ◽  
Dactylis Glomerata L

Seed Dormancy in Dactylis Glomerata L. 1

Crop Science ◽  
1963 ◽  
Vol 3 (1) ◽  
pp. 17-19 ◽  
Author(s):  
C. L. Canode ◽  
E. V. Horning ◽  
J. D. Maguire
Keyword(s):  
Seed Dormancy ◽  
Dactylis Glomerata ◽  
Dactylis Glomerata L
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