Abstract
A field experiment was carried out during the rainy (kharif) season (July-October) of 2016 at the research farm, New Delhi, to study the effect of time of K application on the performance of maize (Zea mays L.) under conservation agriculture. The maximum values of yield-attributing characters, viz. cob length (16.3 cm), cob girth (13.6 cm), cob weight (5.6 t/ha), grain rows/cob (13.7), grains/cob (3, 567) and test weight (215 g) in maize were recorded with ZT-bed + residue followed by zero tillage (ZT) + residue and conservation tillage (CT)-No residue. The treatment, K2 [half recommended dose (RD) at basal and half at tasseling) showed significantly higher values of yield attributes than all other treatments. The highest grain (4.66 t/ha) and stover (9.51 t/ha) yields were recorded in ZT-bed + residue over ZT + residue and CT-No residue. Half dose of K at sowing + half at tasseling recorded significantly higher grain (4.46 t/ha) and stover (8.65 t/ha) yield than other treatments in subplots which are at par with one-third at sowing + one-third at knee high (30 days after sowing) + one-third at tasseling. The yield improvement with ZT-bed + residue was 11.21% over CT-No residue and 7.37% over ZT + residue. ZT-bed + residue registered significantly higher N, P and K content in seed and stover and uptake during the period of study followed by ZT + residue and CT-No residue. The total N (119 kg/ha), P (27 kg/ha) and K uptake (181 kg/ha) were maximum with ZT-bed + residue which was significantly higher than ZT + residue and CT-No residue. Among the timing of K application practices, higher N, P and K content in grain, stover and total uptake in maize was observed in half at sowing + half at tasseling, which was statistically at par with one-third at sowing + onethird at knee high (30 days after sowing) + one-third at tasseling but significantly higher than recommended dose as basal (60 kg K2O/ha).
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Claims 20
Claim · model-written summary
ZT-bed plus residue gave maximum maize cob length of 16.3 cm.
- Treatment
- ZT-bed + residuee0
- Outcome
- cob lengthe0
- Direction
- maximume0
- Value
- 16.3 cme0
- Comparator
- CT)-No residuee0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The maximum values of yield-attributing characters, viz. cob length (16.3 cm), cob girth (13.6 cm), cob weight (5.6 t/ha), grain rows/cob (13.7), grains/cob (3, 567) and test weight (215 g) in maize were recorded with ZT-bed + residue followed by zero tillage (ZT) + residue and conservation tillage (CT)-No residue.”
Claim · model-written summary
ZT-bed plus residue gave maximum maize cob girth of 13.6 cm.
- Treatment
- ZT-bed + residuee0
- Outcome
- cob girthe0
- Direction
- maximume0
- Value
- 13.6 cme0
- Comparator
- CT)-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The maximum values of yield-attributing characters, viz. cob length (16.3 cm), cob girth (13.6 cm), cob weight (5.6 t/ha), grain rows/cob (13.7), grains/cob (3, 567) and test weight (215 g) in maize were recorded with ZT-bed + residue followed by zero tillage (ZT) + residue and conservation tillage (CT)-No residue.”
Claim · model-written summary
ZT-bed plus residue gave maximum maize cob weight of 5.6 t/ha.
- Treatment
- ZT-bed + residuee0
- Outcome
- cob weighte0
- Direction
- maximume0
- Value
- 5.6 t/hae0
- Comparator
- CT)-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The maximum values of yield-attributing characters, viz. cob length (16.3 cm), cob girth (13.6 cm), cob weight (5.6 t/ha), grain rows/cob (13.7), grains/cob (3, 567) and test weight (215 g) in maize were recorded with ZT-bed + residue followed by zero tillage (ZT) + residue and conservation tillage (CT)-No residue.”
Claim · model-written summary
ZT-bed plus residue gave maximum maize grain rows/cob of 13.7.
- Treatment
- ZT-bed + residuee0
- Outcome
- grain rows/cobe0
- Direction
- maximume0
- Value
- 13.7e0
- Comparator
- CT)-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The maximum values of yield-attributing characters, viz. cob length (16.3 cm), cob girth (13.6 cm), cob weight (5.6 t/ha), grain rows/cob (13.7), grains/cob (3, 567) and test weight (215 g) in maize were recorded with ZT-bed + residue followed by zero tillage (ZT) + residue and conservation tillage (CT)-No residue.”
Claim · model-written summary
ZT-bed plus residue gave maximum maize grains/cob of 3, 567.
- Treatment
- ZT-bed + residuee0
- Outcome
- grains/cobe0
- Direction
- maximume0
- Value
- 3, 567e0
- Comparator
- CT)-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The maximum values of yield-attributing characters, viz. cob length (16.3 cm), cob girth (13.6 cm), cob weight (5.6 t/ha), grain rows/cob (13.7), grains/cob (3, 567) and test weight (215 g) in maize were recorded with ZT-bed + residue followed by zero tillage (ZT) + residue and conservation tillage (CT)-No residue.”
Claim · model-written summary
ZT-bed plus residue gave maximum maize test weight of 215 g.
- Treatment
- ZT-bed + residuee0
- Outcome
- test weighte0
- Direction
- maximume0
- Value
- 215 ge0
- Comparator
- CT)-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The maximum values of yield-attributing characters, viz. cob length (16.3 cm), cob girth (13.6 cm), cob weight (5.6 t/ha), grain rows/cob (13.7), grains/cob (3, 567) and test weight (215 g) in maize were recorded with ZT-bed + residue followed by zero tillage (ZT) + residue and conservation tillage (CT)-No residue.”
Claim · model-written summary
Split potassium application gave significantly higher yield attributes than other treatments.
- Treatment
- half recommended dose (RD) at basal and half at tasselinge0
- Outcome
- yield attributese0
- Direction
- highere0
- Comparator
- all other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The treatment, K2 [half recommended dose (RD) at basal and half at tasseling) showed significantly higher values of yield attributes than all other treatments”
Claim · model-written summary
ZT-bed plus residue gave highest maize grain yield of 4.66 t/ha.
- Treatment
- ZT-bed + residuee0
- Outcome
- graine0
- Direction
- higheste0
- Value
- 4.66 t/hae0
- Comparator
- CT-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The highest grain (4.66 t/ha) and stover (9.51 t/ha) yields were recorded in ZT-bed + residue over ZT + residue and CT-No residue.”
Claim · model-written summary
ZT-bed plus residue gave highest maize stover yield of 9.51 t/ha.
- Treatment
- ZT-bed + residuee0
- Outcome
- stovere0
- Direction
- higheste0
- Value
- 9.51 t/hae0
- Comparator
- CT-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The highest grain (4.66 t/ha) and stover (9.51 t/ha) yields were recorded in ZT-bed + residue over ZT + residue and CT-No residue.”
Claim · model-written summary
Half potassium at sowing and half at tasseling gave higher grain yield of 4.46 t/ha.
- Treatment
- Half dose of K at sowing + half at tasselinge0
- Outcome
- graine0
- Direction
- highere0
- Value
- 4.46 t/hae0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“Half dose of K at sowing + half at tasseling recorded significantly higher grain (4.46 t/ha) and stover (8.65 t/ha) yield than other treatments in subplots which are at par with one-third at sowing + one-third at knee high (30 days after sowing) + one-third at tasseling.”
Claim · model-written summary
Half potassium at sowing and half at tasseling gave higher stover yield of 8.65 t/ha.
- Treatment
- Half dose of K at sowing + half at tasselinge0
- Outcome
- stovere0
- Direction
- highere0
- Value
- 8.65 t/hae0
- Comparator
- other treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“Half dose of K at sowing + half at tasseling recorded significantly higher grain (4.46 t/ha) and stover (8.65 t/ha) yield than other treatments in subplots which are at par with one-third at sowing + one-third at knee high (30 days after sowing) + one-third at tasseling.”
Claim · model-written summary
ZT-bed plus residue improved yield by 11.21% over CT-No residue.
- Treatment
- ZT-bed + residuee0
- Outcome
- yield improvemente0
- Direction
- improvemente0
- Value
- 11.21%e0
- Comparator
- CT-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The yield improvement with ZT-bed + residue was 11.21% over CT-No residue and 7.37% over ZT + residue”
Claim · model-written summary
ZT-bed plus residue improved yield by 7.37% over ZT + residue.
- Treatment
- ZT-bed + residuee0
- Outcome
- yield improvemente0
- Direction
- improvemente0
- Value
- 7.37%e0
- Comparator
- ZT + residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The yield improvement with ZT-bed + residue was 11.21% over CT-No residue and 7.37% over ZT + residue”
Claim · model-written summary
ZT-bed plus residue increased N, P and K content in seed and stover.
- Treatment
- ZT-bed + residuee0
- Outcome
- N, P and K content in seed and stovere0
- Direction
- highere0
- Comparator
- CT-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“ZT-bed + residue registered significantly higher N, P and K content in seed and stover and uptake during the period of study followed by ZT + residue and CT-No residue”
Claim · model-written summary
ZT-bed plus residue gave maximum total N uptake of 119 kg/ha.
- Treatment
- ZT-bed + residuee0
- Outcome
- total Ne0
- Direction
- maximume0
- Value
- 119 kg/hae0
- Comparator
- CT-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The total N (119 kg/ha), P (27 kg/ha) and K uptake (181 kg/ha) were maximum with ZT-bed + residue which was significantly higher than ZT + residue and CT-No residue.”
Claim · model-written summary
ZT-bed plus residue gave maximum P uptake of 27 kg/ha.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The total N (119 kg/ha), P (27 kg/ha) and K uptake (181 kg/ha) were maximum with ZT-bed + residue which was significantly higher than ZT + residue and CT-No residue.”
Claim · model-written summary
ZT-bed plus residue gave maximum K uptake uptake of 181 kg/ha.
- Treatment
- ZT-bed + residuee0
- Outcome
- K uptakee0
- Direction
- maximume0
- Value
- 181 kg/hae0
- Comparator
- CT-No residuee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“The total N (119 kg/ha), P (27 kg/ha) and K uptake (181 kg/ha) were maximum with ZT-bed + residue which was significantly higher than ZT + residue and CT-No residue.”
Claim · model-written summary
Split potassium timing increased N, P and K content in grain.
- Treatment
- half at sowing + half at tasselinge0
- Outcome
- N, P and K content in graine0
- Direction
- highere0
- Comparator
- recommended dose as basal (60 kg K2O/ha)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“Among the timing of K application practices, higher N, P and K content in grain, stover and total uptake in maize was observed in half at sowing + half at tasseling, which was statistically at par with one-third at sowing + onethird at knee high (30 days after sowing) + one-third at tasseling but significantly higher than recommended dose as basal (60 kg K2O/ha)”
Claim · model-written summary
Split potassium timing increased N, P and K content in grain, stover.
- Treatment
- half at sowing + half at tasselinge0
- Outcome
- N, P and K content in grain, stovere0
- Direction
- highere0
- Comparator
- recommended dose as basal (60 kg K2O/ha)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“Among the timing of K application practices, higher N, P and K content in grain, stover and total uptake in maize was observed in half at sowing + half at tasseling, which was statistically at par with one-third at sowing + onethird at knee high (30 days after sowing) + one-third at tasseling but significantly higher than recommended dose as basal (60 kg K2O/ha)”
Claim · model-written summary
Split potassium timing increased total uptake.
- Treatment
- half at sowing + half at tasselinge0
- Outcome
- total uptakee0
- Direction
- highere0
- Comparator
- recommended dose as basal (60 kg K2O/ha)e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“maize (Zea mays)”
e0“Among the timing of K application practices, higher N, P and K content in grain, stover and total uptake in maize was observed in half at sowing + half at tasseling, which was statistically at par with one-third at sowing + onethird at knee high (30 days after sowing) + one-third at tasseling but significantly higher than recommended dose as basal (60 kg K2O/ha)”
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