Abstract
Abstract At the experiment station of the Krizevci College of Agriculture, yield and yield components of maize (Zea mays L.) and soybean (Glycine max) grown in rotation under five different methods of tillage were investigated. The aim of this study was to determine the effect of different tillage methods on yield and yield components of maize and soybean. The results and the determined number of plants per hectare of maize and soybean show that more favorable conditions for germination are in variants where ploughing performed in the autumn (variants C, D and E). During a four-year study, the minimum number of plants per hectare of maize and soybean was found in variant A. The dry season in panicle stage of maize in 2006 has lowered yields compared to 2008, and the drought in 2007 during the seed-filling period reduced the yield and the 1000 kernel weight of soybean compared with 2009 in all variants of tillage methods. The highest grain yield of maize was recorded in variant B. During 2006, with the unfavorable weather conditions, the lowest grain yield of maize was recorded in variant E with intensive tillage treatment. The highest yield of soybean was recorded in variant E, but there were no statistically significant differences compared to variants with the reduction of additional tillage interventions (variant B, C and D). With respect to maize grain and soybean seed yield, variant A was the lowest. Considering the achieved yields of maize grain, there is a possibility of reducing additional tillage interventions, whilst for achieving higher yield of soybean seed intensive tillage is recommended.
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Claims 11
Claim · model-written summary
Autumn ploughing (variants C, D and E) gave more favorable conditions for germination of maize and soybean.
- Taxon
- maize and soybean
Glycine max
Zea mayse0 - Treatment
- ploughing performed in the autumne0
- Outcome
- conditions for germinatione0
- Direction
- more favorablee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“determined number of plants per hectare of maize and soybean show that more favorable conditions for germination are in variants where ploughing performed in the autumn”
Claim · model-written summary
Variant A had the minimum number of plants per hectare for maize and soybean.
- Taxon
- maize and soybeanGlycine maxZea mayse1
- Treatment
- variant Ae1
- Outcome
- number of plants per hectaree1
- Direction
- minimume1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the minimum number of plants per hectare of maize and soybean was found in variant A”
Claim · model-written summary
The dry season in panicle stage lowered maize yields in 2006 compared with 2008.
- Treatment
- dry season in panicle stagee2
- Outcome
- yieldse2
- Direction
- lowerede2
- Comparator
- 2008e2
- Setting
- 2006e2
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e2“The dry season in panicle stage of maize in 2006 has lowered yields compared to 2008”
Claim · model-written summary
Drought in 2007 during the seed-filling period reduced soybean yield and 1000 kernel weight compared with 2009.
- Taxon
- soybeanGlycine maxe3
- Treatment
- drought in 2007 during the seed-filling periode3
- Outcome
- the yield and the 1000 kernel weighte3
- Direction
- reducede3
- Comparator
- 2009e3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“the drought in 2007 during the seed-filling period reduced the yield and the 1000 kernel weight of soybean compared with 2009”
Claim · model-written summary
Variant B gave the highest grain yield of maize.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“The highest grain yield of maize was recorded in variant B”
Claim · model-written summary
Variant E with intensive tillage gave the lowest grain yield of maize in 2006 under unfavorable weather.
- Treatment
- variant E with intensive tillage treatmente5
- Outcome
- grain yield of maizee5
- Direction
- loweste5
- Qualifier
- unfavorable weather conditionse5
- Setting
- 2006e5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e5“During 2006, with the unfavorable weather conditions, the lowest grain yield of maize was recorded in variant E with intensive tillage treatment”
Claim · model-written summary
Variant E gave the highest soybean yield.
- Taxon
- soybeanGlycine maxe6
- Treatment
- variant Ee6
- Outcome
- yield of soybeane6
- Direction
- higheste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The highest yield of soybean was recorded in variant E”
Claim · model-written summary
Soybean yield in variant E did not differ significantly from variants B, C and D.
- Taxon
- soybeanGlycine maxe6
- Treatment
- variant Ee6
- Outcome
- yield of soybeane6
- Direction
- no_changeinferrede6
- Comparator
- variants with the reduction of additional tillage interventions (variant B, C and D)e7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e6“The highest yield of soybean was recorded in variant E”
e7“there were no statistically significant differences compared to variants with the reduction of additional tillage interventions (variant B, C and D)”
Claim · model-written summary
Variant A had the lowest seed yields of maize and soybean.
- Taxon
- maize and soybeanGlycine maxZea mayse1
- Treatment
- variant Ae1
- Outcome
- maize grain and soybean seed yielde2
- Direction
- loweste2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“the minimum number of plants per hectare of maize and soybean was found in variant A”
e2“With respect to maize grain and soybean seed yield, variant A was the lowest”
Claim · model-written summary
Maize grain yields suggest that additional tillage interventions could be reduced.
- Outcome
- reducing additional tillage interventionse3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“Considering the achieved yields of maize grain, there is a possibility of reducing additional tillage interventions”
Claim · model-written summary
Intensive tillage is recommended for achieving higher soybean seed yield.
- Taxon
- soybeanGlycine maxe4
- Treatment
- intensive tillagee4
- Outcome
- higher yield of soybean seede4
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e4“for achieving higher yield of soybean seed intensive tillage is recommended”
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