Abstract
A long-term experiment to study the effects of different rates of nitrogen (N), phosphorus (P) and potassium (K) in intensive rice monoculture commenced at the farmers fields of central Punjab, during growing seasons of 2006-07 and 2007-08. Five fine rice cultivars, B-Super, B-2002, B-kernal, B-2000 and B-385 were used as test crop on normal characteristics bearing loam soils with RCBD plot arrangements. Different levels of NPK with control were assigned in randomized complete block design with 4 dispersed replications. Paddy yields, increase in yield, gross return (GR), net return (NR), value cost ratio (VCR) and grain nutrient ratio (GNR) were recorded. Average of two years study reveals that a considerable response of rice to N, P and K was observed. Compiled results indicated that fertilizer nutrient dose that maximized paddy yield (4.550 t/ha) with increase in yield of 2.863 t/ha was 135-135-60 kg ha-1 NPK, respectively. However, NPK level 135-90-0 kg ha-1 appeared economical with NR (Rs. 22095 per ha), VCR 2.7 and GNR 10.4. Quantum of response was found greater for N and P. On the other hand comparison of mean paddy yields of cultivars showed that B- super, gave significantly higher yield followed by, B-385, B-kernel, B-2000 and B-2002.
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Claims 8
Claim · model-written summary
NPK fertilization gave a considerable rice response.
- Taxon
- rice
Oryza sativae0 - Treatment
- N, P and Ke0
- Outcome
- response of ricee0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a considerable response of rice to N, P and K was observed.”
Claim · model-written summary
The 135-135-60 kg ha-1 NPK rate maximized paddy yield at 4.550 t/ha.
- Taxon
- riceOryza sativat0
- Treatment
- 135-135-60 kg ha-1 NPKe0
- Outcome
- paddy yielde0
- Direction
- maximizede0
- Value
- 4.550 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“fertilizer nutrient dose that maximized paddy yield (4.550 t/ha) with increase in yield of 2.863 t/ha was 135-135-60 kg ha-1 NPK”
t0“RICE”
Claim · model-written summary
The 135-135-60 kg ha-1 NPK rate increased yield by 2.863 t/ha.
- Taxon
- RICEOryza sativat0
- Treatment
- 135-135-60 kg ha-1 NPKe0
- Outcome
- yielde0
- Direction
- increasee0
- Value
- 2.863 t/hae0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“with increase in yield of 2.863 t/ha was 135-135-60 kg ha-1 NPK”
t0“RICE”
Claim · model-written summary
The 135-90-0 kg ha-1 NPK rate gave net return of Rs. 22095 per ha.
- Taxon
- RICEOryza sativat0
- Treatment
- 135-90-0 kg ha-1e0
- Outcome
- NRe0
- Value
- Rs. 22095 per hae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK level 135-90-0 kg ha-1 appeared economical with NR (Rs. 22095 per ha), VCR 2.7 and GNR 10.4.”
t0“RICE”
Claim · model-written summary
The 135-90-0 kg ha-1 NPK rate gave VCR 2.7.
- Taxon
- RICEOryza sativat0
- Treatment
- 135-90-0 kg ha-1e0
- Outcome
- VCRe0
- Value
- 2.7e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK level 135-90-0 kg ha-1 appeared economical with NR (Rs. 22095 per ha), VCR 2.7 and GNR 10.4.”
t0“RICE”
Claim · model-written summary
The 135-90-0 kg ha-1 NPK rate gave GNR 10.4.
- Taxon
- RICEOryza sativat0
- Treatment
- 135-90-0 kg ha-1e0
- Outcome
- GNRe0
- Value
- 10.4e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“NPK level 135-90-0 kg ha-1 appeared economical with NR (Rs. 22095 per ha), VCR 2.7 and GNR 10.4.”
t0“RICE”
Claim · model-written summary
Rice responded more strongly to nitrogen and phosphorus.
- Taxon
- RICEOryza sativat0
- Treatment
- N and Pe0
- Outcome
- Quantum of responsee0
- Direction
- greatere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Quantum of response was found greater for N and P.”
t0“RICE”
Claim · model-written summary
B-super had significantly higher mean paddy yield than the other cultivars, in the reported rank order.
- Taxon
- RICEOryza sativat0
- Material
- B- supere0
- Outcome
- mean paddy yieldse0
- Direction
- highere0
- Comparator
- B-385, B-kernel, B-2000 and B-2002e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“comparison of mean paddy yields of cultivars showed that B- super, gave significantly higher yield followed by, B-385, B-kernel, B-2000 and B-2002.”
t0“RICE”
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