Abstract
Field experiments were conducted with pearl millet-wheat cropping system on a Typic Ustipsamment to assess the direct, residual and cumulative effect of Zn application on crops with or without use of organic manure. The residual effect of 10 kg Zn ha−1 applied to first crop on grain yields was noted up to the sixth crop. Better yields were obtained with the application of 10 kg Zn ha−1 every year or at least in alternate years. Combined application of 2.5 kg Zn + 5 t FYM ha−1 in alternate years gave significantly higher concentration of Zn in flag leaf, its uptake by crops and higher content of DTPA-extractable Zn in soil at the end of three years’ cycle. Apparent Zn fertilizer use efficiency under combined application of 2.5 kg Zn + 5 t FYM ha−1 applied in 1st and 2nd years or 1st and 3rd years was about ten-fold higher than application of 10 kg Zn as ZnSO4 ha−1 in 1st and 2nd or in 1st and 3rd years.
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Claims 6
Claim · model-written summary
A 10 kg Zn ha−1 first-crop application had residual grain-yield effects through the sixth crop.
- Taxon
- pearl millet-wheatt0
- Treatment
- 10 kg Zn ha−1 applied to first crope0
- Outcome
- grain yieldse0
- Qualifier
- up to the sixth crope0
Not reportedComparatorDirection
Verbatim
e0“The residual effect of 10 kg Zn ha−1 applied to first crop on grain yields was noted up to the sixth crop.”
t0“pearl millet–wheat”
Claim · model-written summary
Applying 10 kg Zn ha−1 yearly or in alternate years produced better yields.
- Taxon
- pearl millet–wheat
Cenchrus americanus
Triticum aestivumt0 - Treatment
- 10 kg Zn ha−1 every year or at least in alternate yearse0
- Outcome
- yieldse0
- Direction
- Bettere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Better yields were obtained with the application of 10 kg Zn ha−1 every year or at least in alternate years.”
t0“pearl millet–wheat”
Claim · model-written summary
Alternating 2.5 kg Zn plus 5 t FYM ha−1 increased flag-leaf zinc concentration significantly.
- Taxon
- pearl millet–wheatCenchrus americanusTriticum aestivumt0
- Treatment
- 2.5 kg Zn + 5 t FYM ha−1 in alternate yearse0
- Outcome
- concentration of Zn in flag leafe0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined application of 2.5 kg Zn + 5 t FYM ha−1 in alternate years gave significantly higher concentration of Zn in flag leaf”
t0“pearl millet–wheat”
Claim · model-written summary
The alternating combined treatment increased crop zinc uptake.
- Taxon
- pearl millet–wheatCenchrus americanusTriticum aestivumt0
- Treatment
- 2.5 kg Zn + 5 t FYM ha−1 in alternate yearse0
- Outcome
- uptake by cropse0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined application of 2.5 kg Zn + 5 t FYM ha−1 in alternate years gave significantly higher concentration of Zn in flag leaf, its uptake by crops”
t0“pearl millet–wheat”
Claim · model-written summary
The combined treatment increased soil DTPA-extractable zinc after three years.
- Taxon
- pearl millet–wheatCenchrus americanusTriticum aestivumt0
- Treatment
- 2.5 kg Zn + 5 t FYM ha−1 in alternate yearse0
- Outcome
- content of DTPA-extractable Zn in soile0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Combined application of 2.5 kg Zn + 5 t FYM ha−1 in alternate years gave significantly higher concentration of Zn in flag leaf, its uptake by crops and higher content of DTPA-extractable Zn in soil at the end of three years’ cycle.”
t0“pearl millet–wheat”
Claim · model-written summary
Combined zinc and FYM application had about ten-fold higher apparent fertilizer use efficiency than 10 kg zinc as ZnSO4.
- Taxon
- pearl millet–wheatCenchrus americanusTriticum aestivumt0
- Treatment
- 2.5 kg Zn + 5 t FYM ha−1e0
- Outcome
- Apparent Zn fertilizer use efficiencye0
- Direction
- highere0
- Value
- about ten-folde0
- Comparator
- 10 kg Zn as ZnSO4 ha−1e0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Apparent Zn fertilizer use efficiency under combined application of 2.5 kg Zn + 5 t FYM ha−1 applied in 1st and 2nd years or 1st and 3rd years was about ten-fold higher than application of 10 kg Zn as ZnSO4 ha−1 in 1st and 2nd or in 1st and 3rd years.”
t0“pearl millet–wheat”
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See all 12 papers →8 of 14 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.