Abstract
Abstract Maize ( Zea mays L.) cultivation during the winter is a new cropping practice in North India. In this cropping system, maize has slow seedling growth associated with low winter temperatures. If the crop can be grown in a nursery during this slow‐growth period and then transplanted, the crop duration in the main field is shortened. Therefore, the present study was conducted to determine if maize could be successfully transplanted to the field. Other objectives were to evaluate the effect of seedling age, and date and method of transplanting. Experiments were done in the field during two or three winter seasons at two locations. Among the transplanting treatments, 40‐d‐old seedlings transplanted on 24 December and 60‐d‐old seedlings on 16 January resulted in the highest grain yields. Grain yields from these transplantings were 92 to 94% (5314–5402 kg ha −1 ) of the yield of the crop direct seeded on 9 November (5743 kg ha −1 ), the optimum sowing time. Grain yield was significantly reduced when younger (up to 20 d) or older (up to 80 d) seedlings were used, with drastic reduction in the latter case. Transplanting of 60‐d‐old seedlings on 24 December and 80‐d‐old seedlings on 16 January yielded only 10 to 12% as compared with the best transplantings. Delayed transplanting (6 February) also decreased grain yield. The comparisons between methods, transplanting on the southern slope of the east‐west ridge or on a flat seed bed, showed that the former improved grain yield. The present study indicates that maize can be successfully produced by transplanting 40‐d‐old seedlings on 24 December and 60‐d‐old seedlings on 16 January, and that transplanting should preferably be done on the ridged seedbed.
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Claims 9
Claim · model-written summary
Forty-day seedlings transplanted on 24 December had among the highest yields, at 92 to 94% of direct seeding yield.
- Treatment
- 40‐d‐old seedlings transplanted on 24 Decembere0
- Outcome
- grain yieldse0
- Direction
- higheste0
- Value
- 92 to 94%e0
- Comparator
- direct seeded on 9 Novembere0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“40‐d‐old seedlings transplanted on 24 December and 60‐d‐old seedlings on 16 January resulted in the highest grain yields. Grain yields from these transplantings were 92 to 94% (5314–5402 kg ha −1 ) of the yield of the crop direct seeded on 9 November (5743 kg ha −1 )”
t0“Maize”
Claim · model-written summary
Sixty-day seedlings transplanted on 16 January also gave among the highest yields.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“60‐d‐old seedlings on 16 January resulted in the highest grain yields”
t0“Maize”
Claim · model-written summary
Younger seedlings reduced grain yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was significantly reduced when younger (up to 20 d) or older (up to 80 d) seedlings were used, with drastic reduction in the latter case”
t0“Maize”
Claim · model-written summary
Older seedlings drastically reduced grain yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was significantly reduced when younger (up to 20 d) or older (up to 80 d) seedlings were used, with drastic reduction in the latter case”
t0“Maize”
Claim · model-written summary
Sixty-day seedlings transplanted on 24 December yielded only 10 to 12% of best transplantings.
- Treatment
- 60‐d‐old seedlings on 24 Decembere0
- Outcome
- yieldede0
- Direction
- onlye0
- Value
- 10 to 12%e0
- Comparator
- best transplantingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transplanting of 60‐d‐old seedlings on 24 December and 80‐d‐old seedlings on 16 January yielded only 10 to 12% as compared with the best transplantings”
t0“Maize”
Claim · model-written summary
Eighty-day seedlings transplanted on 16 January yielded only 10 to 12% of best transplantings.
- Treatment
- 80‐d‐old seedlings on 16 Januarye0
- Outcome
- yieldede0
- Direction
- onlye0
- Value
- 10 to 12%e0
- Comparator
- best transplantingse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Transplanting of 60‐d‐old seedlings on 24 December and 80‐d‐old seedlings on 16 January yielded only 10 to 12% as compared with the best transplantings”
t0“Maize”
Claim · model-written summary
Transplanting on 6 February decreased grain yield.
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Delayed transplanting (6 February) also decreased grain yield”
t0“Maize”
Claim · model-written summary
Transplanting on the south slope of an east-west ridge improved grain yield relative to a flat bed.
- Treatment
- southern slope of the east‐west ridgee0
- Outcome
- grain yielde0
- Direction
- improvede0
- Comparator
- flat seed bede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplanting on the southern slope of the east‐west ridge or on a flat seed bed, showed that the former improved grain yield”
t0“Maize”
Claim · model-written summary
The authors recommend 40-day December or 60-day January transplants on ridged beds.
- Outcome
- transplanting should preferably be done on the ridged seedbede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“transplanting 40‐d‐old seedlings on 24 December and 60‐d‐old seedlings on 16 January, and that transplanting should preferably be done on the ridged seedbed”
t0“Maize”
The same questions in other papers
transplanting · yield · Zea mays (maize)Results differ
87 papers in the same direction as this paper · 35 in the opposite direction · 7 reporting no difference from an alternative
- positive
- positive
- positive
126 papers more in this group
See all 130 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.