Abstract
A b s t r a c t. This study investigated the effects of different tillage methods on the growth response of soybean (Glycine max. (L.) Merr.) in order to determine the most suitable tillage method for optimizing soybean production in tropical sandy loam soils. A replicated complete randomized design with treatments consisting of no-tillage (NT), no-tillage plus hoeing (NTH), ploughing only (P) and ploughing and harrowing (PH) operations established at the Teaching and Research Farm, Obafemi Awolowo University, Ile-Ife, Nigeria was used for the study. The soil was Oxic Tropudult, according to the USDA Soil Classification. The plant height, number of leaves per stand, leaf area, number of pods per stand and seed yield were determined for each of the treatments for 2004 and 2005 seasons. The plant height, number of leaves per stand and leaf area were determined fortnightly over a period of 14 weeks after tillage operations while number of pods per stand and seed yield were determined at maturity. The results show that all the tillage treatments were significantly (P < 0.05) different in their effects on plant height, number of leaves per stand, leaf area, number of pods per stand and seed yield. In general, conventional tillage (P and PH) produced a significantly (P < 0.05) better soybean growth response (plant height, leaf area, number of pods per stand and seed yield) than that obtained for the conservation tillage (NT and NTH) methods. Furthermore, the highest average seed yield (932.1 kg ha -1 ) for both seasons was recorded on plots treated with ploughing only (P). Considering the yield, comparative cost implication(s) and energy requirements, ploughing only (P) was found to be more suitable than ploughing and harrowing (PH) for the cultivation of soybean on tropical sandy loam soils. K e y w o r d s: tillage, soil, soybean growth, plant height, leaf area, yield
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Claims 5
Claim · model-written summary
Tillage treatments differed significantly across soybean growth and yield traits.
- Treatment
- tillage treatmentse0
- Outcome
- plant height, number of leaves per stand, leaf area, number of pods per stand and seed yielde0
- Direction
- differente0
Not reportedTaxonComparator
Verbatim
e0“The results show that all the tillage treatments were significantly (P < 0.05) different in their effects on plant height, number of leaves per stand, leaf area, number of pods per stand and seed yield.”
Claim · model-written summary
Conventional tillage produced better soybean plant height, leaf area than conservation tillage.
- Taxon
- soybean
Glycine maxe0 - Treatment
- conventional tillage (P and PH)e0
- Outcome
- plant height, leaf areae0
- Direction
- bettere0
- Comparator
- conservation tillage (NT and NTH) methodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, conventional tillage (P and PH) produced a significantly (P < 0.05) better soybean growth response (plant height, leaf area, number of pods per stand and seed yield) than that obtained for the conservation tillage (NT and NTH) methods.”
Claim · model-written summary
Conventional tillage produced better soybean number of pods per stand and seed yield than conservation tillage.
- Taxon
- soybeanGlycine maxe0
- Treatment
- conventional tillage (P and PH)e0
- Outcome
- number of pods per stand and seed yielde0
- Direction
- bettere0
- Comparator
- conservation tillage (NT and NTH) methodse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“In general, conventional tillage (P and PH) produced a significantly (P < 0.05) better soybean growth response (plant height, leaf area, number of pods per stand and seed yield) than that obtained for the conservation tillage (NT and NTH) methods.”
Claim · model-written summary
Ploughing only had the highest average seed yield of 932.1 kg ha -1 across seasons.
- Treatment
- ploughing only (P)e0
- Outcome
- seed yielde0
- Direction
- higheste0
- Value
- 932.1 kg ha -1e0
- Setting
- plotse0
Not reportedTaxonComparator
Verbatim
e0“Furthermore, the highest average seed yield (932.1 kg ha -1 ) for both seasons was recorded on plots treated with ploughing only (P).”
Claim · model-written summary
Ploughing only was judged more suitable than ploughing and harrowing for soybean on tropical sandy loam soil.
- Taxon
- soybeanGlycine maxe0
- Treatment
- ploughing only (P)e0
- Outcome
- more suitablee0
- Comparator
- ploughing and harrowing (PH)e0
- Setting
- tropical sandy loam soilse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Considering the yield, comparative cost implication(s) and energy requirements, ploughing only (P) was found to be more suitable than ploughing and harrowing (PH) for the cultivation of soybean on tropical sandy loam soils.”
The same questions in other papers
tillage · growth · Glycine max (soybean)Results differ
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- positive
- negative
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See all 84 papers →tillage · yield · Glycine max (soybean)Positive and negative results
263 papers in the same direction as this paper · 100 in the opposite direction · 26 reporting no difference from an alternative
- no effect
- no effect
- positive
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See all 390 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.