Paper · 2001 · Indian Journal of Agronomy

Indigenous soil nutrient supply and nutrient-use efficiency of rice (Oryza sativa) in Cauvery Delta Zone of Tamil Nadu

C. SHARMILA RAHALE; K. SUBRAMANIYAN; V. RAVI

7
claims
19
verbatim quotes
0
citations
2
research areas
—
Not open access

Abstract

An experiment was conducted in both kuruvai (June to September) and thaldi (October to January) seasons of 201417 at Aduthurai, Tamil Nadu, using omission-plot technique, to study the indigenous soil nutrient supply and nutrient-use efficiency of rice (Oryza sativa L.) field. The experiment was laid out in a randomized block design with 4 replications and 6 treatments, viz. T1, N PK; T , NP0K; T , NPK ; T , NPK; T , NPK + ZnSO ; T ,-F. The re- 0 2 3 0 4 5 4 6 sults showed that, indigenous soil nitrogen supply ranges from 51 to 55 kg/ha. The optimum values of recovery ef- ficiency, physiological efficiency, agronomic efficiency, partial factor productivity and internal efficiency were ob- tained in both the seasons. To achieve the target yield of 7 t/ha in kuruvai, fertilizer rate was calculated as 118, 34.4 and 48 of N, P and K kg/ha and in thaladi it was 67, 23 and 30.9 of N, P and K kg/ha to attain the target of 5 t/ ha. The data also indicated that application of recommended dose of NPK along with ZnSO (T ) in both the sea- 4 5 sons recorded higher grain and straw yields and higher nutrient uptake (N, P and K).

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Claims 7

Observationobservedoriginal resultmeasured

Claim · model-written summary

Indigenous soil nitrogen supply ranges from 51 to 55 kg/ha for rice.

Taxon
Oryza sativaOryza sativae1
Outcome
indigenous soil nitrogen supplye3
Value
51 to 55 kg/hae3
Setting
Aduthurai, Tamil Nadue2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“nutrient-use efficiency of rice (Oryza sativa L.) field”

✓ located verbatim in the source · abstract, characters 220–275 · show in text ↑
e2

“at Aduthurai, Tamil Nadu”

✓ located verbatim in the source · abstract, characters 114–138 · show in text ↑
e3

“indigenous soil nitrogen supply ranges from 51 to 55 kg/ha”

✓ located verbatim in the source · abstract, characters 483–541 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Recovery efficiency, physiological efficiency and agronomic efficiency had optimum values in both seasons.

Taxon
Oryza sativaOryza sativae1
Outcome
recovery ef- ficiency, physiological efficiency, agronomic efficiencye4
Setting
Aduthurai, Tamil Nadue2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“nutrient-use efficiency of rice (Oryza sativa L.) field”

✓ located verbatim in the source · abstract, characters 220–275 · show in text ↑
e2

“at Aduthurai, Tamil Nadu”

✓ located verbatim in the source · abstract, characters 114–138 · show in text ↑
e4

“The optimum values of recovery ef- ficiency, physiological efficiency, agronomic efficiency”

✓ located verbatim in the source · abstract, characters 543–634 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

Partial factor productivity and internal efficiency had optimum values in both seasons.

Taxon
Oryza sativaOryza sativae1
Outcome
partial factor productivity and internal efficiencye5
Setting
Aduthurai, Tamil Nadue2

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“nutrient-use efficiency of rice (Oryza sativa L.) field”

✓ located verbatim in the source · abstract, characters 220–275 · show in text ↑
e2

“at Aduthurai, Tamil Nadu”

✓ located verbatim in the source · abstract, characters 114–138 · show in text ↑
e5

“partial factor productivity and internal efficiency”

✓ located verbatim in the source · abstract, characters 636–687 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

A fertilizer rate of 118, 34.4 and 48 kg/ha of N, P and K is recommended for a kuruvai target yield of 7 t/ha.

Taxon
Oryza sativaOryza sativae1
Outcome
fertilizer ratee6
Value
118, 34.4 and 48 of N, P and K kg/hae6
Qualifier
target yield of 7 t/hae6
Setting
kuruvaie6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“nutrient-use efficiency of rice (Oryza sativa L.) field”

✓ located verbatim in the source · abstract, characters 220–275 · show in text ↑
e6

“To achieve the target yield of 7 t/ha in kuruvai, fertilizer rate was calculated as 118, 34.4 and 48 of N, P and K kg/ha and in thaladi it was 67, 23 and 30.9 of N, P and K kg/ha to attain the target of 5 t/ ha”

✓ located verbatim in the source · abstract, characters 725–935 · show in text ↑
Recommendationauthor interpretationoriginal resultbasis n/a

Claim · model-written summary

A fertilizer rate of 67, 23 and 30.9 kg/ha of N, P and K is recommended for a thaladi target yield of 5 t/ha.

Taxon
Oryza sativaOryza sativae1
Outcome
fertilizer ratee6
Value
67, 23 and 30.9 of N, P and K kg/hae6
Qualifier
target of 5 t/ hae6
Setting
thaladie6

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“nutrient-use efficiency of rice (Oryza sativa L.) field”

✓ located verbatim in the source · abstract, characters 220–275 · show in text ↑
e6

“To achieve the target yield of 7 t/ha in kuruvai, fertilizer rate was calculated as 118, 34.4 and 48 of N, P and K kg/ha and in thaladi it was 67, 23 and 30.9 of N, P and K kg/ha to attain the target of 5 t/ ha”

✓ located verbatim in the source · abstract, characters 725–935 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Applying the recommended NPK dose with ZnSO4 gave higher grain and straw yields of rice.

Taxon
Oryza sativaOryza sativae1
Treatment
application of recommended dose of NPK along with ZnSOe7
Outcome
grain and straw yieldse2
Direction
highere2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“nutrient-use efficiency of rice (Oryza sativa L.) field”

✓ located verbatim in the source · abstract, characters 220–275 · show in text ↑
e7

“application of recommended dose of NPK along with ZnSO”

✓ located verbatim in the source · abstract, characters 966–1020 · show in text ↑
e2

“recorded higher grain and straw yields and higher nutrient uptake (N, P and K)”

✓ located verbatim in the source · abstract, characters 1052–1130 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Applying the recommended NPK dose with ZnSO4 gave higher nutrient uptake of N, P and K by rice.

Taxon
Oryza sativaOryza sativae1
Treatment
application of recommended dose of NPK along with ZnSOe7
Outcome
nutrient uptake (N, P and K)e2
Direction
highere2

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Oryza sativa
Oryza sativa · Taxon · picture from its Wikimedia Commons categoryDesmanthus4food · CC BY-SA 3.0 us · Wikimedia Commons ↗

Verbatim

e1

“nutrient-use efficiency of rice (Oryza sativa L.) field”

✓ located verbatim in the source · abstract, characters 220–275 · show in text ↑
e7

“application of recommended dose of NPK along with ZnSO”

✓ located verbatim in the source · abstract, characters 966–1020 · show in text ↑
e2

“recorded higher grain and straw yields and higher nutrient uptake (N, P and K)”

✓ located verbatim in the source · abstract, characters 1052–1130 · show in text ↑

fertilization · nutrient: content · Oryza sativa (rice)Positive and negative results

993 papers: 932 positive, 61 negative or no effect

931 papers in the same direction as this paper · 56 in the opposite direction · 5 reporting no difference from an alternative

  1. negative
  2. no effect
  3. no effect

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fertilization · yield · Oryza sativa (rice)Positive and negative results

3,455 papers: 3,183 positive, 272 negative or no effect

3,182 papers in the same direction as this paper · 207 in the opposite direction · 65 reporting no difference from an alternative

  1. no effect
  2. no effect
  3. negative

3,451 papers more in this group

See all 3,455 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.