Abstract
A field experiment was conducted at Directorate of Rice Research experimental farm, ICRISAT campus, Patancheru, Hyderabad, during 1998-2000 on a sandy clay loam soil (deep Aquic Ustorthent) for 5 consecutive seasons (3 wet and 2 dry) under 5 treatments, viz T 1 , 100% straw incorporation; T 2 , 50% straw incorporation; T 3 , 100% straw + green manure incorporation; T 4 ,100% straw burning and T 5 , straw removal to evaluate the effect of different crop residue management practices on grain and straw yields and major nutrients uptake (N, P and K) by rice (Oryza sativa) in rice-rice cropping sequence. Grain yields of rice were significantly influenced by the different crop residue management practices from the third season of residue incorporation, while the nutrients uptake was influenced from second season onwards. During wet season 2000, 11-26% increase in grain yield owing to crop residue management was observed with maximum value in straw + green manure treatment. During dry season 2000, the increase was 15-19%, maximum being under burning treatment. The wet season added straw + green manure showed significant residual effect on the yield (17% more) and nutrients uptake (35, 55 and 37% NPK respectively) of dry season rice. The increased nutrients uptake resulted in significant increase (0.34-0.82 and 0.98-1.18 tonnes/ha in wet and dry seasons respectively) in rice productivity which was clear from the correlation between grain yield and nutrients uptake (r = 0.65**-0.91** and r = 0.55*-0.96** during wet and dry seasons respectively). Incorporation of rice straw either alone or in combination with green manure and straw burning increased the yields (0.56-1.08 tonnes/ha) through improved nutrients uptake.
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Claims 11
Claim · model-written summary
Residue management significantly influenced rice grain yield from the third season.
- Taxon
- rice
Oryza sativae0 - Treatment
- different crop residue management practicese0
- Outcome
- Grain yieldse0
- Qualifier
- third season of residue incorporatione0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Grain yields of rice were significantly influenced by the different crop residue management practices from the third season of residue incorporation”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Residue management influenced rice nutrient uptake from the second season.
- Taxon
- riceOryza sativat0
- Treatment
- different crop residue management practicese1
- Outcome
- nutrients uptakee0
- Qualifier
- second season onwardse0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the nutrients uptake was influenced from second season onwards”
e1“significantly influenced by the different crop residue management practices from the third season”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Crop residue management increased wet-season 2000 rice grain yield by 11-26%, with the maximum under straw plus green manure.
- Taxon
- riceOryza sativat0
- Treatment
- crop residue managemente0
- Outcome
- grain yielde0
- Direction
- increasee0
- Value
- 11-26%e0
- Qualifier
- maximum value in straw + green manure treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During wet season 2000, 11-26% increase in grain yield owing to crop residue management was observed with maximum value in straw + green manure treatment”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Crop residue management increased dry-season 2000 rice grain yield by 15-19%, with the maximum under burning.
- Taxon
- riceOryza sativat0
- Treatment
- crop residue managemente1
- Outcome
- grain yielde1
- Direction
- increasee1
- Value
- 15-19%e0
- Qualifier
- maximum being under burning treatmente0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“During dry season 2000, the increase was 15-19%, maximum being under burning treatment”
e1“increase in grain yield owing to crop residue management”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Wet-season straw plus green manure increased subsequent dry-season rice yield by 17%.
- Taxon
- riceOryza sativat0
- Treatment
- wet season added straw + green manuree0
- Outcome
- yielde0
- Direction
- moree0
- Value
- 17%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wet season added straw + green manure showed significant residual effect on the yield (17% more)”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Wet-season straw plus green manure raised subsequent dry-season rice nitrogen uptake by 35%.
- Taxon
- riceOryza sativat0
- Treatment
- wet season added straw + green manuree0
- Outcome
- nutrients uptakee0
- Direction
- moree0
- Value
- 35e0
- Qualifier
- NPK respectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wet season added straw + green manure showed significant residual effect on the yield (17% more) and nutrients uptake (35, 55 and 37% NPK respectively)”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Wet-season straw plus green manure raised subsequent dry-season rice phosphorus uptake by 55%.
- Taxon
- riceOryza sativat0
- Treatment
- wet season added straw + green manuree0
- Outcome
- nutrients uptakee0
- Direction
- moree0
- Value
- 55e0
- Qualifier
- NPK respectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wet season added straw + green manure showed significant residual effect on the yield (17% more) and nutrients uptake (35, 55 and 37% NPK respectively)”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Wet-season straw plus green manure raised subsequent dry-season rice potassium uptake by 37%.
- Taxon
- riceOryza sativat0
- Treatment
- wet season added straw + green manuree0
- Outcome
- nutrients uptakee0
- Direction
- moree0
- Value
- 37%e0
- Qualifier
- NPK respectivelye0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The wet season added straw + green manure showed significant residual effect on the yield (17% more) and nutrients uptake (35, 55 and 37% NPK respectively)”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Nutrient uptake correlated with rice grain yield in wet and dry seasons.
- Taxon
- riceOryza sativat0
- Outcome
- grain yielde0
- Qualifier
- r = 0.65**-0.91** and r = 0.55*-0.96** during wet and dry seasons respectivelye0
- Comparator
- nutrients uptakee0
Not reportedCompoundDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“correlation between grain yield and nutrients uptake (r = 0.65**-0.91** and r = 0.55*-0.96** during wet and dry seasons respectively)”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Increased nutrient uptake was associated with rice productivity gains of 0.34-0.82 tonnes/ha in wet seasons.
- Taxon
- riceOryza sativat0
- Outcome
- rice productivitye0
- Direction
- increasee0
- Value
- 0.34-0.82 and 0.98-1.18 tonnes/hae0
- Qualifier
- wet and dry seasons respectivelye0
- Comparator
- increased nutrients uptakee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The increased nutrients uptake resulted in significant increase (0.34-0.82 and 0.98-1.18 tonnes/ha in wet and dry seasons respectively) in rice productivity”
t0“rice ( Oryza sativa)”
Claim · model-written summary
Straw incorporation alone or with green manure, and straw burning, increased rice yields by 0.56-1.08 tonnes/ha through improved nutrient uptake.
- Taxon
- riceOryza sativae0
- Treatment
- Incorporation of rice straw either alone or in combination with green manure and straw burninge0
- Outcome
- yieldse0
- Direction
- increasede0
- Value
- 0.56-1.08 tonnes/hae0
- Qualifier
- through improved nutrients uptakee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of rice straw either alone or in combination with green manure and straw burning increased the yields (0.56-1.08 tonnes/ha) through improved nutrients uptake”
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See all 993 papers →8 of 9 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.