Influence of Combine Harvester Forward and Reel Speeds on Wheat Harvesting Losses in Gezira Scheme (Sudan)

2021 ◽  
Vol 2 (2) ◽  
Author(s):  
Omer A. Abdalla ◽  
Mohamed. H. Dahab ◽  
Mukhtar M. Musa ◽  
Eltayeb S. N. Babikir
Keyword(s):  
Technology Transfer ◽  
Total Yield ◽  
Forward Speed ◽  
Split Plot ◽  
Combine Harvester ◽  
Plot Design

The present study was conducted at the demonstration farm of Massaed Technology Transfer Center, Gezira State, during 2016/2017, to evaluate the effect of combine harvester forward and reel speed on wheat harvesting losses (total header, processing and total machine losses). Three combine harvester forward speeds (4, 5 and 6 km/h), and three reel speeds (25, 35 and 45 rpm) were used in the experiment, which was arranged in a split plot design with three replications. The results showed that forward speed 4 km/h with reel speed 25 rpm recorded the lowest total header losses (31.8 kg/ha) while the highest losses (90.1 kg/ha) was recorded by the forward speed 6 km/h and reel seed 25 rpm. The lowest processing losses was obtained from the forward speed 6 km/h with reel speed 25 rpm (13.2 kg/ha) while the highest was recorded by the forward speed 4 km/h with the reel speed 45 rpm (38.2 kg/ha). Forward speed 4 km/h with reel speed 25 rpm recorded the lowest total machine losses (56.7 kg/ha) which represents 9.5% of the total yield as compared to 118.0 kg/ha which represents 19.67% of the total yield recorded by the same speed with 45 rpm reel speed. It was concluded that the forward speed 4 km/h with reel speed 25 rpm was appropriate for reducing combined wheat harvesting losses under Gezira Scheme conditions.

EFFECTS OF VEGETATION SUPPRESSION AND DRILLING TECHNIQUES ON THE ESTABLISHMENT AND GROWTH OF SOD-SEEDED ALFALFA AND BIRD’S-FOOT TREFOIL IN GRASS DOMINANT SWARDS

1982 ◽  
Vol 62 (3) ◽  
pp. 667-675 ◽  
Author(s):  
H. T. KUNELIUS ◽  
A. J. CAMPBELL ◽  
J. A. IVANY ◽  
K. B. MCRAE
Keyword(s):  
Medicago Sativa ◽  
Seedling Establishment ◽  
Dry Matter ◽  
Poa Pratensis ◽  
Total Yield ◽  
Lotus Corniculatus ◽  
Vegetation Control ◽  
Split Plot ◽  
Medicago Sativa L ◽  
Plot Design

The sod seeding of alfalfa (Medicago sativa L.) and bird’s-foot trefoil (Lotus corniculatus L.) was studied in three locations previously cut for conserved feed or used for pasture. At each location an experiment with a split-split-plot design was established with sod-seeded alfalfa and bird’s-foot trefoil as main treatments, methods of drilling as subtreatments, and methods of vegetation control as sub-subtreatments. Drilling was done with a John Deere PowrTill 1500 renovator and Øyjord plot drill equipped with shoe openers. The methods of vegetation control included mowing and spraying with 1:1-′dimethyl-4.4′bipyridinium dichloride (paraquat) or N-(phosphonomethyl) glycine (glyphosate) at the time of drilling. Sod seeding alfalfa resulted in greater dry matter yields than bird’s-foot trefoil. Alfalfa and bird’s-foot trefoil constituted 27 and 17% of total yield in the year after sod seeding and 17 and 4% in the 2nd year after drilling, respectively. Alfalfa performed better in a sward previously cut for conserved feed while bird’s-foot trefoil performed better in a field used for pasture. Both PowrTill and plot drill resulted in satisfactory seedling establishment although the yields of sod-seeded legumes were greater with plot drill than with PowrTill in the year after drilling. Vegetation suppression with paraquat and glyphosate did not improve the growth of sod-seeded alfalfa or bird’s-foot trefoil over the unsprayed treatment. In a heavy sward consisting mainly of Poa pratensis L., sod-seeded alfalfa, and bird’s-foot trefoil failed to establish.

Respon Pertumbuhan dan Produksi Kacang Tanah (Arachis hypogaea L.) terhadap Sistem Tanam Alur dan Pemberian Jenis Pupuk

2017 ◽  
Vol 5 (3) ◽  
pp. 342
Author(s):  
Rizal Mahdi Kurniawan ◽  
Heni Purnamawati ◽  
Yudiwanti Wahyu E. K
Keyword(s):  
Arachis Hypogaea ◽  
Arachis Hypogaea L ◽  
Split Plot ◽  
Plot Design

<p><em>Penelitian ini bertujuan untuk mempelajari pengaruh sistem tanam alur dan pemberian jenis pupuk terhadap pertumbuhan dan produksi kacang tanah (Arachis hypogaea L.). Penelitian dilaksanakan di KP Leuwikopo IPB Dramaga, Bogor pada bulan Februari - Juni 2013. Percobaan menggunakan rancangan petak terbagi (Split Plot Design) dengan perlakuan terdiri dari dua faktor, yaitu sistem tanam alur sebagai petak utama dan jenis pupuk sebagai anak petak. Hasil penelitian menunjukkan bahwa perlakuan sistem tanam alur meningkatkan daya hasil pada produktivitas biji kering, produktivitas polong kering, dan bobot kering biji per tanaman lebih baik dibandingkan sistem tanam konvensional. Hal tersebut ditunjukkan dengan perlakuan sistem tanam alur yang memiliki produktivitas 2.93 ton/ha polong kering, sedangkan sistem tanam konvensional sebesar 2.55 ton/ha polong kering. Sistem budidaya kacang tanah pada sistem tanam alur dapat meningkatkan efisiensi tanaman dalam memanfaatkan unsur hara yang telah diberikan baik pupuk organik maupun anorganik, sehingga pertumbuhan dan hasil tanaman kacang tanah menjadi lebih baik. Pemberian jenis pupuk kandang ayam + Dolomit + NPK memberikan respon terhadap pertumbuhan dan  daya hasil rata-rata tanaman yang lebih baik dibandingkan jenis pupuk lainnya.</em></p>

scholarly journals Performance of hybrid rice grown from separated tillers

2019 ◽  
Vol 17 (4) ◽  
pp. 507-513
Author(s):  
FN Kamarum Munira ◽  
Md. Parvez Anwar ◽  
Sabina Yeasmin ◽  
Md. Harun Or Rashid ◽  
Mst Farzana Rahman ◽  
...  
Keyword(s):  
Grain Yield ◽  
Plant Height ◽  
Hybrid Rice ◽  
Rice Variety ◽  
Field Laboratory ◽  
Split Plot ◽  
Rice Seeds ◽  
Four Levels ◽  
Plot Design

The experiment was conducted at the Agronomy Field Laboratory, Bangladesh Agricultural University, Mymensingh during July to November 2016 to investigate the performance of separated tillers of hybrid rice variety Dhani Gold. The experiment comprised three times of tiller transplantation viz. 3, 4 and 5 week aged tiller seedlings and four levels of number of tiller seedlings transplanted hill-1 viz. 2, 3, 4 and 5 tiller seedlings hill-1 laid out in a split plot design with 3 replications. The highest plant height was obtained when 3-week aged tiller seedlings were transplanted at the rate of 3 tiller seedlings hill-1. The highest number of total tillers hill-1 and number of effective tillers hill-1 were found when 3-week aged tiller seedlings were transplanted with 5 tiller seedlings hill-1. The highest grains panicle-1 was obtained when 4-week aged tiller seedlings were transplanted with 5 tiller seedlings hill-1. The highest grain yield was found when 3-week aged tiller seedlings were transplanted with 5 tiller seedlings hill-1. The lowest grain yield was found when 5-week aged tiller seedlings were transplanted with 2 tiller seedlings hill-1 in hybrid rice variety Dhani Gold. Based on the findings of the present study it may be concluded that 3-week old tiller seedlings of Dhani Gold should be transplanted at the rate of 4 or 5 tiller seedlings hill-1 for higher yield. Thus present study confirms the potentiality of growing hybrid rice from separated tillers in case of unavailability of seedlings or to minimize the seed cost of high value hybrid rice seeds. J Bangladesh Agril Univ 17(4): 507–513, 2019

Yield and Yield Contributing Attributes Of Potato as Influenced by Vermicompost And Seed Tuber Size

2021 ◽  
Vol 19 (1) ◽  
pp. 71-79
Author(s):  
M Mostofa ◽  
TS Roy ◽  
R Chakraborty
Keyword(s):  
Seed Tuber ◽  
Maximum Yield ◽  
Potato Production ◽  
Tuber Size ◽  
Factor B ◽  
Yield Parameters ◽  
Study Results ◽  
Split Plot ◽  
Two Factors ◽  
Plot Design

Low yield is crucial bottleneck for potato production in Bangladesh. The application of vermicompost may enhance the yield of potato. The experiment was consisted of two factors, i.e., Factor A: - Vermicompost level (Vm1-4): Vm1: 0 t ha-1, Vm2: 3 t ha-1, Vm3: 6 t ha-1 and Vm4: 9 t ha-1; Factor B:- Tuber size (T1-5): T1: 5-10 g, T2: 10-20 g, T3: 20-30 g, T4: 30-40 g and T5: > 40 g. The experiment was conducted in a split-plot design with three replications. Vermicompost had significant effect on most of the yield contributing parameters investigated under present study. Results revealed that yield parameters increased with increasing vermicompost level irrespective of tuber size. Among the twenty (20) treatment combinations, vermicompost at the rate of 9 t ha-1 with tuber size > 40 g produced the maximum yield (31.33 t ha-1) that was 53.53 % higher than that of control with 3273.01 $ of monetary advantage. Therefore, present study suggests that potato growers may use vermicompost for increasing yield of potato in Bangladesh. SAARC J. Agric., 19(1): 71-79 (2021)

Effect of varieties and weeding regimes on weed and performance of

2011 ◽  
Vol 1 (3) ◽  
pp. 121-130
Author(s):  
U. Ismaila ◽  
M. G. Kolo ◽  
A. U. Gbanguba
Keyword(s):  
Oryza Sativa ◽  
Active Ingredient ◽  
Oryza Sativa L ◽  
Weed Suppression ◽  
Dichlorophenoxyacetic Acid ◽  
Aerobic Rice ◽  
Split Plot ◽  
Main Plot ◽  
And Performance ◽  
Plot Design

A Field trial was conducted at the aerobic rice experimental field of the NationalCereals Research Institute (NCRI), Badeggi, Nigeria (9 ° 04 N and 6° 7 E)in 2007 and 2008 wet seasons to determine the weed competitiveness andperformance of inter Ã¢â‚¬Â and intra‐specific aerobic rice (Oryza sativa L.) varietiesunder seven weeding regimes. The trial was laid out in a split plot designwith the two varieties of rice (NERICA 1 as inter Ã¢â‚¬Âspecific and FARO 46 asintra Ã¢â‚¬Âspecific) assigned to the main plot while seven weeding regimes (hoeweeding at 25, 45, and 65 days after sowing (DAS), 25 DAS, 45 DAS, 25 and45 DAS, application of 3’,3’ Ã¢â‚¬Â dichloropropionanilide /2, 4 – Dichlorophenoxyacetic acid (orizo plus R) by Candel Company Ltd. at 3.5 kg active ingredient(ai )ha Ã¢â‚¬Â1 at 25 DAS, hoe weeding at 25 DAS followed by orizo plus at 3.5 kg aiat 45 DAS and weedy check) constituted the sub – plots. The treatmentswere replicated three times in a split plot design. From the results, interspecificvariety (NERICA1) had better weed suppression ability with highergrain yield of 3.1 t ha Ã¢â‚¬Â1 than the intra‐specific variety (FARO 46). Weed controlwas better when hoe weeding was done at 25, 45 and 65 DAS or 25 and45 DAS and at 25 DAS followed by orizo plus at 45 DAS than in other treatments.However, hoe weeding at 25, 45 and 65 DAS gave significantlygreater grain yield than other treatments. Although economic yield was obtainedfrom hoe weeding at 25 DAS followed by orizo plus at 45 DAS.

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