Abstract
Zinc deficiency appears to be the most texture, slightly acidic in reaction (pH 6.5), important nutritional factor limiting growth medium in available N (322 kgha), availa- and yield of wetland rice (Oryza sativa L.) ble P (Olsens P 14.5 kglha) and available K next to nitrogen and phosphorus. It is a (1 56 kg/ha). major component and activator of several Sarathi (1 15 days) rice was transplant- enzymes and involved in metabolic ed on 25 and 15 February during 1991 and activities, viz. auxin metabolism, protein 1992 respectively at 15 cm x 1a0 cm spacing. synthesis, nucleic acid and carbohydrate The maximum mean grain and straw metabolism, and utilization of nitrogen and yields of 45.8 and 62.1 qlha respectively . phosphorus. Krishnamurthy (1979) reported were obtained at the highest level of nitro- synergistic effect between applied nitrogen gen. The increase over 0,30 and 60 kg N/ha and zinc in rice. was 49.8, 20.7 and 7.3% for grain and 56.1, Hence an investigation was camed out to 25.2 and 10.1 % for straw yield respectively. study the effect of zinc and nitrogen Application of zinc increased the grain fertilization on grain and straw ,yields of and straw yields significantly over no zinc summer rice. application, which might be owing to better A field experiment was conducted at the utilization of N and P for grain production Central Research Station, OUAT, Bhu- through greater metabolic activities. Com- baneshwar, during summerseason of 1991 bined application of N and Zn increased the and 1992. The treatments consisting of 2 grain and straw yields by 7.2 and 12.9% re- --- sources of zinc (S1, ZnS0, and S,, Zn- spectively over alone application of N. The EDTA), 2 methods of application (MI, soil increase in both grain and straw yields was and M,, foliar application) supplemented owing to their synergistic effect. Similar re- with 4 levels of nitrogen (0, 30, 60 and 90 sults were obtained by Vyas et al. (1990) in kglha). The treatments were tried in rand- irrigated rice. omized block design with 3 replications. The sources and methods of application Zinc sulphate (22% Zn) @ 25 kg/ha and Zn- of Zn influenced the yield significantly in EDTA (12% Zn) @ 500 g/ha along with 10 both the seasons. Among the sources, kg carder were applied basal. Foliar sprays ZnSO, increased the grain and straw yields of ZnSO, at 0.4% and Zn-EDTA at 0.05% by 2.5 and 4.2% respectively over Zn- - concentration were given at 25 and 35 days EDTA, which was due to optimal supply of 1 after transplanting. Zn from ZnS0, as well as, beneficial effect The experimental soil was sandy loam in of sulphur present in it.
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Claims 7
Claim · model-written summary
The highest nitrogen level gave maximum mean grain yield.
- Taxon
- rice
Oryza sativae0 - Treatment
- highest level of nitro-e3
- Outcome
- graine1
- Direction
- maximume1
- Value
- 45.8e2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wetland rice (Oryza sativa L.)”
e1“The maximum mean grain and straw”
e2“yields of 45.8 and 62.1 qlha respectively”
e3“were obtained at the highest level of nitro-”
Claim · model-written summary
The highest nitrogen level gave maximum mean straw yields yield.
- Taxon
- riceOryza sativae0
- Treatment
- highest level of nitro-e3
- Outcome
- strawe1
- Direction
- maximume1
- Value
- 62.1 qlhae2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wetland rice (Oryza sativa L.)”
e1“The maximum mean grain and straw”
e2“yields of 45.8 and 62.1 qlha respectively”
e3“were obtained at the highest level of nitro-”
Claim · model-written summary
Highest nitrogen raised grain relative to lower nitrogen rates.
- Taxon
- riceOryza sativae0
- Treatment
- highest level of nitro-e2
- Outcome
- graine1
- Direction
- increasee1
- Value
- 49.8, 20.7 and 7.3%e1
- Comparator
- 0,30 and 60 kg N/hae1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Schema note from the model: Grouped comparator-specific values due damaged column-order text
Verbatim
e0“wetland rice (Oryza sativa L.)”
e1“The increase over 0,30 and 60 kg N/ha and zinc in rice. was 49.8, 20.7 and 7.3% for grain”
e2“highest level of nitro-”
Claim · model-written summary
Highest nitrogen raised straw yield relative to lower nitrogen rates.
- Taxon
- riceOryza sativae0
- Treatment
- highest level of nitro-e2
- Outcome
- straw yielde1
- Value
- 56.1e1
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Schema note from the model: Damaged two-column OCR obscures comparator alignment
Verbatim
e0“wetland rice (Oryza sativa L.)”
e1“56.1, Hence an investigation was camed out to 25.2 and 10.1 % for straw yield respectively”
e2“highest level of nitro-”
Claim · model-written summary
Zinc application significantly increased grain and straw yields relative to no zinc.
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wetland rice (Oryza sativa L.)”
e1“Application of zinc increased the grain fertilization on grain and straw ,yields of and straw yields significantly over no zinc summer rice. application”
Claim · model-written summary
ZnSO, raised grain relative to Zn-EDTA.
- Taxon
- riceOryza sativae0
- Treatment
- ZnSO,e1
- Outcome
- graine1
- Direction
- increasede1
- Value
- 2.5e1
- Comparator
- Zn-EDTAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wetland rice (Oryza sativa L.)”
e1“ZnSO, increased the grain and straw yields of ZnSO, at 0.4% and Zn-EDTA at 0.05% by 2.5 and 4.2% respectively over Zn-”
Claim · model-written summary
ZnSO, raised straw yields relative to Zn-EDTA.
- Taxon
- riceOryza sativae0
- Treatment
- ZnSO,e1
- Outcome
- straw yieldse1
- Direction
- increasede1
- Value
- 4.2%e1
- Comparator
- Zn-EDTAe1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wetland rice (Oryza sativa L.)”
e1“ZnSO, increased the grain and straw yields of ZnSO, at 0.4% and Zn-EDTA at 0.05% by 2.5 and 4.2% respectively over Zn-”
The same questions in other papers
zinc atom · yield · Oryza sativa (rice)Results differ
388 papers in the same direction as this paper · 28 in the opposite direction · 2 reporting no difference from an alternative
- positive
- no effect
- negative
415 papers more in this group
See all 419 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.