Abstract
An investigation was carried out at Palampur during rainy season of 2002 and 2003 to assess the influence of three tillage methods (zero tillage, conventional tillage and raised seed-bed) and four weed-control methods (unweeded check, acetachlor 0.75 kglha, acetachlor 1.25 kglha and atrazine 1.5 kg/ha) on nutrient uptake and productivity of maize (Zea mays L.). Zero tillage resulted in significantly higher soil-moisture content and bulk density than conventional tillage and raised seed-bed. Raised seed-bed resulted in significantly lowest count and dry matter of weeds. Compared with zero tillage, the conventional tillage and raised seed-bed methods being statistically at par, resulted in significantly higher N, P and K uptake by maize crop (18.1, 25.0 and 20.2% by the former and 16.1, 36.2 and 16.7% respectively by the latter method) and lower depletion of these nutrients by weeds (13.5, 15.6 and 10.8% by the former and 30.3, 30.3 and 29.0%, respectively by the latter method), in- creasing the average grain yield of the crop by 16.9 and 13.7% by these methods. Among weed-control meth- ods, atrazine 1.5 kglha, being statistically on a par with acetachlor 1.25 kg/ha, significantly reduced the popula- tion and dry matter of total weeds. Compared with the unweeded check, atrazine 1.5 kglha and acetachlor 1.25 kglha, being statistically at par, significantly increased the N, P and K uptake by the crop (93.3, 105.3 and 95.4% by the former and 87.0, 88.8 and 88.9%, respectively by the latter) and lower depletion of N, P and K by weeds (79.4, 87.2 and 81.5% by the former, and 81.9, 88.7 and 83.5% respectively by the latter herbicide), increasing in the grain yield of maize by 75.2 and 71.7% by these two herbicides.
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Claims 4
Claim · model-written summary
Conventional tillage increased maize N, P and K uptake versus zero tillage.
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with zero tillage, the conventional tillage and raised seed-bed methods being statistically at par, resulted in significantly higher N, P and K uptake by maize crop (18.1, 25.0 and 20.2% by the former and 16.1, 36.2 and 16.7% respectively by the latter method)”
Claim · model-written summary
Conventional tillage raised maize grain yield by 16.9% versus zero tillage.
- Treatment
- conventional tillagee0
- Outcome
- grain yielde0
- Direction
- in- creasinge0
- Value
- 16.9e0
- Comparator
- zero tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with zero tillage, the conventional tillage and raised seed-bed methods being statistically at par, resulted in significantly higher N, P and K uptake by maize crop (18.1, 25.0 and 20.2% by the former and 16.1, 36.2 and 16.7% respectively by the latter method) and lower depletion of these nutrients by weeds (13.5, 15.6 and 10.8% by the former and 30.3, 30.3 and 29.0%, respectively by the latter method), in- creasing the average grain yield of the crop by 16.9 and 13.7% by these methods”
Claim · model-written summary
Raised seed-bed tillage raised maize grain yield by 13.7% versus zero tillage.
- Treatment
- raised seed-bede0
- Outcome
- grain yielde0
- Direction
- in- creasinge0
- Value
- 13.7%e0
- Comparator
- zero tillagee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with zero tillage, the conventional tillage and raised seed-bed methods being statistically at par, resulted in significantly higher N, P and K uptake by maize crop (18.1, 25.0 and 20.2% by the former and 16.1, 36.2 and 16.7% respectively by the latter method) and lower depletion of these nutrients by weeds (13.5, 15.6 and 10.8% by the former and 30.3, 30.3 and 29.0%, respectively by the latter method), in- creasing the average grain yield of the crop by 16.9 and 13.7% by these methods”
Claim · model-written summary
Atrazine 1.5 kglha increased maize grain yield by 75.2% over the unweeded check.
- Treatment
- atrazine 1.5 kglhae0
- Outcome
- grain yielde0
- Direction
- increasinge0
- Value
- 75.2e0
- Comparator
- unweeded checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Compared with the unweeded check, atrazine 1.5 kglha and acetachlor 1.25 kglha, being statistically at par, significantly increased the N, P and K uptake by the crop (93.3, 105.3 and 95.4% by the former and 87.0, 88.8 and 88.9%, respectively by the latter) and lower depletion of N, P and K by weeds (79.4, 87.2 and 81.5% by the former, and 81.9, 88.7 and 83.5% respectively by the latter herbicide), increasing in the grain yield of maize by 75.2 and 71.7% by these two herbicides”
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See all 1,099 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.