Abstract
Study of the impact of traditional and zero-tillage systems and organo-mineral fertilization systems with the use of green manure crops in intermediate post-harvest sowings on crop weediness and soybean yield when growing it in an irrigated short-rotation crop rotation of the Southern Steppe of Ukraine. The research was carried out on the basis of a stationary experiment laid out in the fields of the Askanian State Agricultural Research Station Institute of Irrigated Agriculture of NAAS in the area of operation of the Kakhovka irrigation system. The scheme of the experiment included three variants of the main tillage and four variants of fertilization with post-harvest sowings of green manure of buckwheat (Fagopyrum esculentum Moench.), phacelia (Pracelia tanacetifolia Benth.) and white one-year-old sweet clover (Melilotus albus). Field, quantitative-weight, calculation-comparative, and mathematical-statistical methods were used. The average number of weeds in soybean crops when plowing was the lowest and was 28.5 pcs/m2. With zero tillage, both in the second year and longterm use, an increase in the weediness of crops was observed by 16 and 8.5 pcs/m2 , respectively. When sowing soybeans according to zero technology, weediness was lower in the options with post-harvest sideral sowing of phacelia and buckwheat, where the number of weeds, compared to the control, was 10 and 16 pcs/m2 fewer. For all methods of the main tillage, an increase in soybean yield was recorded when using post-harvest green manures, which was 0.22–0.57 t/ha when sowing buckwheat on green manure, 0.06–0.23 t/ha when using white one-year-old sweet clover, and 0.29–0.67 t/ha when using phacelia. It was established that when growing soybeans in an irrigated short-rotation crop rotation in the Southern Steppe zone of Ukraine, the least weediness of crops and the highest crop yield at the level of 3.77 t/ha was provided by plowing to a depth of 28–30 cm. Sowing of post-harvest green manures contributed to an increase in soybean productivity from 0.06 to 0.67 t/ha. When growing soybeans according to zero technology, using buckwheat in the intermediate post-harvest sowings and phacelia for green manure can reduce weediness of the main crop by 24 and 39%, respectively, and increase productivity by 0.22 and 0.29 t/ha.
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Claims 14
Claim · model-written summary
Plowing gave the lowest weed count, 28.5 pcs/m2.
- Taxon
- soybean
Glycine maxe0 - Treatment
- plowinge0
- Interactor
- weedse0weed
- Outcome
- number of weeds in soybean cropse0
- Direction
- loweste0
- Value
- 28.5 pcs/m2e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“average number of weeds in soybean crops when plowing was the lowest and was 28.5 pcs/m2”
Claim · model-written summary
Second-year zero tillage raised weediness by 16 pcs/m2.
- Taxon
- soybeanGlycine maxe1
- Treatment
- zero tillagee0
- Outcome
- weediness of cropse0
- Direction
- increasee0
- Value
- 16e0
- Qualifier
- in the second yeare0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With zero tillage, both in the second year and longterm use, an increase in the weediness of crops was observed by 16 and 8.5 pcs/m2 , respectively”
e1“soybean crops”
Claim · model-written summary
Long-term zero tillage raised weediness by 8.5 pcs/m2.
- Taxon
- soybeanGlycine maxe1
- Treatment
- zero tillagee0
- Outcome
- weediness of cropse0
- Direction
- increasee0
- Value
- 8.5 pcs/m2e0
- Qualifier
- longterm usee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“With zero tillage, both in the second year and longterm use, an increase in the weediness of crops was observed by 16 and 8.5 pcs/m2 , respectively”
e1“soybean crops”
Claim · model-written summary
Phacelia green manure lowered soybean weed count by 10 pcs/m2 versus control.
- Taxon
- soybeansGlycine maxe1
- Treatment
- phaceliae0
- Outcome
- number of weedse0
- Direction
- fewere0
- Value
- 10e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“post-harvest sideral sowing of phacelia and buckwheat, where the number of weeds, compared to the control, was 10 and 16 pcs/m2 fewer”
e1“When sowing soybeans according to zero technology”
Claim · model-written summary
Buckwheat green manure lowered soybean weed count by 16 pcs/m2 versus control.
- Taxon
- soybeansGlycine maxe1
- Treatment
- buckwheate0
- Outcome
- number of weedse0
- Direction
- fewere0
- Value
- 16 pcs/m2e0
- Comparator
- the controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“post-harvest sideral sowing of phacelia and buckwheat, where the number of weeds, compared to the control, was 10 and 16 pcs/m2 fewer”
e1“When sowing soybeans according to zero technology”
Claim · model-written summary
Buckwheat green manure increased soybean yield by 0.22–0.57 t/ha.
- Taxon
- soybeanGlycine maxe0
- Treatment
- sowing buckwheat on green manuree0
- Outcome
- soybean yielde0
- Direction
- increasee0
- Value
- 0.22–0.57 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in soybean yield was recorded when using post-harvest green manures, which was 0.22–0.57 t/ha when sowing buckwheat on green manure”
Claim · model-written summary
Sweet clover green manure increased soybean yield by 0.06–0.23 t/ha.
- Taxon
- soybeanGlycine maxe0
- Treatment
- white one-year-old sweet clovere1
- Outcome
- soybean yielde0
- Direction
- increasee0
- Value
- 0.06–0.23 t/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in soybean yield was recorded when using post-harvest green manures”
e1“0.06–0.23 t/ha when using white one-year-old sweet clover”
Claim · model-written summary
Phacelia green manure increased soybean yield by 0.29–0.67 t/ha.
- Taxon
- soybeanGlycine maxe0
- Treatment
- phaceliae1
- Outcome
- soybean yielde0
- Direction
- increasee0
- Value
- 0.29–0.67 t/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“increase in soybean yield was recorded when using post-harvest green manures”
e1“0.29–0.67 t/ha when using phacelia”
Claim · model-written summary
Plowing to 28–30 cm gave the least weediness.
- Taxon
- soybeansGlycine maxe1
- Treatment
- plowing to a depth of 28–30 cme0
- Outcome
- weediness of cropse0
- Direction
- leaste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“least weediness of crops and the highest crop yield at the level of 3.77 t/ha was provided by plowing to a depth of 28–30 cm”
e1“when growing soybeans”
Claim · model-written summary
Plowing to 28–30 cm gave highest soybean yield of 3.77 t/ha.
- Taxon
- soybeansGlycine maxe1
- Treatment
- plowing to a depth of 28–30 cme0
- Outcome
- crop yielde0
- Direction
- higheste0
- Value
- 3.77 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“highest crop yield at the level of 3.77 t/ha was provided by plowing to a depth of 28–30 cm”
e1“when growing soybeans”
Claim · model-written summary
Buckwheat green manure under zero tillage reduced soybean weediness by 24%.
- Taxon
- soybeansGlycine maxe1
- Treatment
- buckwheat in the intermediate post-harvest sowingse0
- Outcome
- weediness of the main crope0
- Direction
- reducee0
- Value
- 24e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using buckwheat in the intermediate post-harvest sowings and phacelia for green manure can reduce weediness of the main crop by 24 and 39%, respectively”
e1“When growing soybeans according to zero technology”
Claim · model-written summary
Phacelia green manure under zero tillage reduced soybean weediness by 39%.
- Taxon
- soybeansGlycine maxe1
- Treatment
- phacelia for green manuree0
- Outcome
- weediness of the main crope0
- Direction
- reducee0
- Value
- 39%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using buckwheat in the intermediate post-harvest sowings and phacelia for green manure can reduce weediness of the main crop by 24 and 39%, respectively”
e1“When growing soybeans according to zero technology”
Claim · model-written summary
Buckwheat green manure under zero tillage raised soybean productivity by 0.22 t/ha.
- Taxon
- soybeansGlycine maxe1
- Treatment
- buckwheat in the intermediate post-harvest sowingse0
- Outcome
- productivitye0
- Direction
- increasee0
- Value
- 0.22e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using buckwheat in the intermediate post-harvest sowings and phacelia for green manure can reduce weediness of the main crop by 24 and 39%, respectively, and increase productivity by 0.22 and 0.29 t/ha”
e1“When growing soybeans according to zero technology”
Claim · model-written summary
Phacelia green manure under zero tillage raised soybean productivity by 0.29 t/ha.
- Taxon
- soybeansGlycine maxe1
- Treatment
- phacelia for green manuree0
- Outcome
- productivitye0
- Direction
- increasee0
- Value
- 0.29 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“using buckwheat in the intermediate post-harvest sowings and phacelia for green manure can reduce weediness of the main crop by 24 and 39%, respectively, and increase productivity by 0.22 and 0.29 t/ha”
e1“When growing soybeans according to zero technology”
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See all 1,192 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.