Abstract
A field experiment was conducted at research farm of the Afghanistan National Agricultural Science and Technology University (ANASTU), Kandahar, Afghanistan, in randomized complete- block (RCBD) design during summer 2017, to evaluate the effect of post-emergence (PoE) herbicides in maize (Zea mays L.). Results revealed that sequential application of atrazine @ 1,500 g/ha as pre-emergence followed by (fb) tembotrione @ 120 g/ha as post emergence (PoE) 25 days after sowing (DAS) recorded significantly higher plant height and leaf-area index at 60 and 90 days after sowing (DAS), while dry-matter accumulation and the yield attributes as grains/row, grain/cob and grain weight/cob at harvesting stages. Weed infestation in hybrid maize caused 35.8% yield loss compared to weed-free control. Application of the weed-management treatments increased the maize yield by 35.2% (11.6 – 51.2) over unweeded check. Significantly higher grain yield (6.50 t/ha) was recorded with sequential application of atrazine (1,500 g/ha) as pre-emergence followed by tembotrione (120 g/ha) at 25 DAS, which was at par with pendimethalin (1,000 ml/ha) as pre-emergence followed by atrazine (750 g/ha) + 2,4-D amine (400 g/ha) at 25 DAS as PoE (6.21.3 t/ha) and atrazine (1,500 g/ha) as pre-emergence fb 2,4-D amine (400 g/ha) at 25 DAS (6.12 t/ha). Therefore, the sequential application of pre-and post-emergence herbicides could be opted for enhancing growth and yield and weed control of hybrid maize in Afghanistan and similar ecologies.
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Claims 8
Claim · model-written summary
Sequential atrazine then tembotrione gave significantly higher plant height and leaf-area index.
- Treatment
- sequential application of atrazine @ 1,500 g/ha as pre-emergence followed by (fb) tembotrione @ 120 g/ha as post emergence (PoE) 25 days after sowing (DAS)e1
- Outcome
- plant height and leaf-area indexe1
- Direction
- highere1
Zea maysNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize (Zea mays L.)”
e1“sequential application of atrazine @ 1,500 g/ha as pre-emergence followed by (fb) tembotrione @ 120 g/ha as post emergence (PoE) 25 days after sowing (DAS) recorded significantly higher plant height and leaf-area index at 60 and 90 days after sowing (DAS)”
Claim · model-written summary
The same sequence increased dry-matter accumulation and yield attributes at harvest.
- Treatment
- sequential application of atrazine @ 1,500 g/ha as pre-emergence followed by (fb) tembotrione @ 120 g/ha as post emergence (PoE) 25 days after sowing (DAS)e1
- Outcome
- dry-matter accumulation and the yield attributes as grains/row, grain/cob and grain weight/cobe1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize (Zea mays L.)”
e1“sequential application of atrazine @ 1,500 g/ha as pre-emergence followed by (fb) tembotrione @ 120 g/ha as post emergence (PoE) 25 days after sowing (DAS) recorded significantly higher plant height and leaf-area index at 60 and 90 days after sowing (DAS), while dry-matter accumulation and the yield attributes as grains/row, grain/cob and grain weight/cob at harvesting stages”
Claim · model-written summary
Weed infestation caused 35.8% yield loss relative to weed-free control.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed infestation in hybrid maize caused 35.8% yield loss compared to weed-free control.”
Claim · model-written summary
Weed management increased maize yield by 35.2% over the unweeded check.
- Treatment
- weed-management treatmentse0
- Outcome
- maize yielde0
- Direction
- increasede0
- Value
- 35.2%e0
- Qualifier
- 11.6 – 51.2e0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of the weed-management treatments increased the maize yield by 35.2% (11.6 – 51.2) over unweeded check.”
Claim · model-written summary
Sequential atrazine then tembotrione produced significantly higher grain yield of 6.50 t/ha.
- Treatment
- sequential application of atrazine (1,500 g/ha) as pre-emergence followed by tembotrione (120 g/ha) at 25 DASe1
- Outcome
- grain yielde1
- Direction
- highere1
- Value
- 6.50 t/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize yield”
e1“Significantly higher grain yield (6.50 t/ha) was recorded with sequential application of atrazine (1,500 g/ha) as pre-emergence followed by tembotrione (120 g/ha) at 25 DAS”
Claim · model-written summary
The pendimethalin then atrazine plus 2,4-D treatment yielded 6.21.3 t/ha and was at par with the highest treatment.
- Treatment
- pendimethalin (1,000 ml/ha) as pre-emergence followed by atrazine (750 g/ha) + 2,4-D amine (400 g/ha) at 25 DAS as PoEe1
- Outcome
- at pare1
- Direction
- at pare1
- Value
- 6.21.3 t/hae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed infestation in hybrid maize caused”
e1“which was at par with pendimethalin (1,000 ml/ha) as pre-emergence followed by atrazine (750 g/ha) + 2,4-D amine (400 g/ha) at 25 DAS as PoE (6.21.3 t/ha)”
Claim · model-written summary
Atrazine then 2,4-D amine yielded 6.12 t/ha and was at par with the highest treatment.
- Treatment
- atrazine (1,500 g/ha) as pre-emergence fb 2,4-D amine (400 g/ha) at 25 DASe1
- Outcome
- maize yielde2
- Value
- 6.12 t/hae1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed infestation in hybrid maize caused”
e1“and atrazine (1,500 g/ha) as pre-emergence fb 2,4-D amine (400 g/ha) at 25 DAS (6.12 t/ha)”
e2“Application of the weed-management treatments increased the maize yield by 35.2% (11.6 – 51.2) over unweeded check.”
Claim · model-written summary
The authors recommend sequential pre- and post-emergence herbicides for growth, yield and weed control.
- Treatment
- sequential application of pre-and post-emergence herbicidese0
- Outcome
- enhancing growth and yield and weed controle0
- Setting
- Afghanistane0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“sequential application of pre-and post-emergence herbicides could be opted for enhancing growth and yield and weed control of hybrid maize in Afghanistan and similar ecologies.”
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See all 651 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.