Effects of Additional Nitrogen Application and Harvest Time to Ratooning Sorghum × Sudangrass for Bio-ethanol Production

2020 ◽  
Vol 54 (2) ◽  
pp. 15-23
Author(s):  
Gam-Gon Kim ◽  
◽  
Won-Sang Park ◽  
Na-Young Choi ◽  
Young-Hyun Jeong ◽  
...  
2019 ◽  
Vol 139 ◽  
pp. 111500 ◽  
Author(s):  
Changwei Zhang ◽  
Huidong Chen ◽  
Na An ◽  
Changsheng Su ◽  
Meng Lv ◽  
...  

Author(s):  
M.J. Hill ◽  
R.J. Clements ◽  
B.R. Watkin

Seed production by 'Massey Basyn' Yorkshire fog (Holcus lanatus L.) was greatest (mean 323 kg/ha) with early closing (June 30), but lodging occurred on these plots and commercial harvesting would be difftcult. With later closing (July 31 and August 31), lodging did not occur and average yields of about 250 kg/ha were obtained. Very late closing (September 30) resulted in a severe yield depression. Application of nitrogen fertilizer either at closing or at inflorescence initiation increased seed yields by an average of 30%. Peak seed yields occurred later at harvest time as closing was delayed. With the optim8um combination of treatments, yields of 400 kg/ha were achieved and it is suggested that yields of at least 200 kg/ha could be obtained commercially.


1980 ◽  
Vol 94 (1) ◽  
pp. 125-136 ◽  
Author(s):  
I. Davies

SummaryThe length and weight per unit length of individual internodes of mature reproductive tillers of S. 24 and S. 23 perennial ryegrass and S. 345 and S. 143 cocksfoot were examined under three manurial treatments. At the lower level of nitrogen application successive internodes generally increased in length from the base upward. With additional nitrogen there was an increased proportion of tillers in which internodes near the base of the stem were longer than those immediately above them; lateheading tillers were most affected.Nitrogen increased the weight per unit length of upper internodes of all four varieties; the effect was most marked in S. 23 ryegrass. In the two ryegrasses, nitrogen reduced the weight per unit length of the basal internode.At maturity the upper internodes had lower dry-matter digestibility values than the lower. Nitrogen reduced the dry-matter digestibility of upper and lower internodes.The results are discussed in relation to selection criteria in variety synthesis.


2020 ◽  
Vol 146 ◽  
pp. 1444-1450 ◽  
Author(s):  
Changwei Zhang ◽  
Huidong Chen ◽  
Siyu Pang ◽  
Changsheng Su ◽  
Meng Lv ◽  
...  

2008 ◽  
Vol 1 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Thomas L. Tew ◽  
Robert M. Cobill ◽  
Edward P. Richard

1991 ◽  
Vol 27 (4) ◽  
pp. 391-395 ◽  
Author(s):  
H. M. Abdel Magid ◽  
M. F. Ghoneim ◽  
R. K. Rabie ◽  
R. E. Sabrah

SUMMARYField experiments were carried out under irrigation in Central Saudi Arabia during the winters of 1987–88 and 1988–89 to examine the productivity and quality (grain protein content) of wheat intercropped with inoculated and uninoculated alfalfa with or without additional nitrogen. Nitrogen increased wheat grain yield and protein percentage but inoculation of the alfalfa had no additional effect. Herbage yield of intercropped alfa4fa was unaffected by nitrogen application. Added nitrogen reduced the protein percentage in alfalfa but increased its protein yield. Intercropping had benefits for alfalfa, increasing its protein content and yield.Siembra simultánea de trigoy alfalfa


1984 ◽  
Vol 103 (2) ◽  
pp. 333-338 ◽  
Author(s):  
M. A. El Manhaly ◽  
O. Fadayomi ◽  
Y. A. Abayomi ◽  
M. O. Olofinboba

SUMMARYExperiments were conducted over two cropping seasons at the Sugar Cane Estate of the Nigerian Sugar Company, Bacita, Nigeria to determine the effectiveness of additional nitrogen fertilizer, chemical sprays and delayed planting in controlling flowering in two commercial sugar-cane varieties (Co. 1001 andCp. 29/116). Application of 150 and 250 kg N/ha, 8 weeks before initiation, reduced flowering in Co. 1001 by up to 13·5 and 11 % respectively. Flowering was as low as 2% in some of the above treatments while the average flowering in plots with no additional nitrogen application was more than 80%. imilarly, application of diuron (4·0 kg/ha) and paraquat (0'5 kg/ha) to the top leaves (3 weeks before initiation) of Co. 1001 reduced flowering in this variety up to 45 and 35% respectively. Neither the application of diuron and paraquat nor additional nitrogen fertilizer sufficiently reduced flowering in Cp. 29/116. The time of planting affected flowering. Over 85% flowering was observed in November 1982 from Co. 1001 fields planted in January 1982 (10 months before initiation time). However, fields of the same variety planted in June 1982 (4 months before initiation time) did not show any initiation until harvest in May 1983. The implications of the above results are discussed.


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