Abstract
SUMMARY A field experiment was conducted at the experimental farm of the Central Soil Salinity Research Institute, Karnal, India during 1992/93 to evaluate the effects of rates and methods of manganese application on the yield and nutrition of wheat on a reclaimed and intensively cropped Mn-deficient sodic soil (pH = 8·7, exchangeable sodium percentage = 18 and DTPA-extractable Mn = 2·7 mg kg -1 ). There were eight treatments which consisted of a control (no Mn application), three rates of 25, 50 and 100 kg MnSO 4 . H 2 O ha -1 each either as a basal or a top-dressing at first irrigation or a foliar spray of 1·0% MnSO 4 .H 2 O at crown root initiation (CRI), tillering and jointing stages. Grain and straw yield of wheat increased significantly with increasing rates of Mn application. A foliar spray of Mn produced a significantly higher yield than 25 and 50 kg MnSO 4 . H 2 O ha -1 applied either as a basal or a top-dressing but similar to that from 100 kg MnSO 4 .H 2 O ha -1 . Efficiency of Mn was higher with a foliar spray (82·6 kg grain kg -1 Mn) than with soil application (4·4–6·4 kg grain kg -1 Mn). Application of Mn increased its concentration in the crop but decreased Fe and Cu crop concentrations. Grain yield had a significant positive correlation with the Mn content of the grain ( r = 0·72) and straw ( r = 0·78). Grain yield was positively correlated with 1000-grain weight ( r = 0·90). Recovery of applied Mn ranged from 28·1 to 33·0%.
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Claims 11
Claim · model-written summary
Wheat grain and straw yield increased significantly with increasing manganese application rates.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Mn applicatione0
- Outcome
- Grain and straw yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain and straw yield of wheat increased significantly with increasing rates of Mn application.”
Claim · model-written summary
Foliar manganese produced higher yield than basal application at 25 and 50 kg rates.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- foliar spray of Mne0
- Outcome
- yielde0
- Direction
- highere0
- Comparator
- 25 and 50 kg MnSO 4 . H 2 O ha -1 applied either as a basal or a top-dressinge0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A foliar spray of Mn produced a significantly higher yield than 25 and 50 kg MnSO 4 . H 2 O ha -1 applied either as a basal or a top-dressing”
t0“wheat”
Claim · model-written summary
Foliar manganese yield was similar to yield under the 100 kg soil application.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- foliar spray of Mne1
- Outcome
- yielde1
- Direction
- similare0
- Comparator
- 100 kg MnSO 4 .H 2 O ha -1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“similar to that from 100 kg MnSO 4 .H 2 O ha -1”
t0“wheat”
e1“A foliar spray of Mn produced a significantly higher yield”
Claim · model-written summary
Manganese efficiency was higher for foliar spray than soil application.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- foliar spraye0
- Outcome
- Efficiency of Mne0
- Direction
- highere0
- Value
- 82·6 kg grain kg -1 Mne0
- Qualifier
- 4·4–6·4 kg grain kg -1 Mne0
- Comparator
- soil applicatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Efficiency of Mn was higher with a foliar spray (82·6 kg grain kg -1 Mn) than with soil application (4·4–6·4 kg grain kg -1 Mn).”
t0“wheat”
Claim · model-written summary
Manganese application increased crop manganese concentration.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Application of Mne0
- Outcome
- its concentration in the crope0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Mn increased its concentration in the crop”
t0“wheat”
Claim · model-written summary
Manganese application decreased crop iron concentration.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Application of Mne0
- Outcome
- Fee0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of Mn increased its concentration in the crop but decreased Fe and Cu crop concentrations.”
t0“wheat”
Claim · model-written summary
Manganese application decreased crop copper concentration.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Application of Mne1
- Outcome
- Cu crop concentrationse0
- Direction
- decreasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“decreased Fe and Cu crop concentrations.”
e1“Application of Mn increased its concentration in the crop but decreased Fe and Cu crop concentrations.”
t0“wheat”
Claim · model-written summary
Grain yield correlated positively with grain manganese content.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- graine0
- Compound
- Mne0
- Outcome
- Grain yielde0
- Direction
- positivee0
- Value
- r = 0·72e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield had a significant positive correlation with the Mn content of the grain ( r = 0·72)”
t0“wheat”
Claim · model-written summary
Grain yield correlated positively with straw manganese content.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- strawe0
- Compound
- Mne0
- Outcome
- Grain yielde0
- Direction
- positivee0
- Value
- r = 0·78e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield had a significant positive correlation with the Mn content of the grain ( r = 0·72) and straw ( r = 0·78).”
t0“wheat”
Claim · model-written summary
Grain yield correlated positively with thousand grain weight.
- Taxon
- wheatTriticum aestivumt0
- Organ / stage
- graine0
- Outcome
- Grain yielde0
- Direction
- positivelye0
- Value
- r = 0·90e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yield was positively correlated with 1000-grain weight ( r = 0·90).”
t0“wheat”
Claim · model-written summary
Recovery of applied manganese ranged from 28.1 to 33.0 percent.
- Taxon
- wheatTriticum aestivumt0
- Outcome
- Recovery of applied Mne0
- Value
- 28·1 to 33·0%e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Recovery of applied Mn ranged from 28·1 to 33·0%.”
t0“wheat”
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