Abstract
Field experiments were conducted during 2000-06 to assess the impact of tillage practices and different nitrogen sources on the productivity potential of maize (Zea mays L.)-wheat (Triticum aestivum L. emend Fiori & Paol) cropping sequence on long-term sustainable basis under rainfed conditions. Modified reduced tillage (RT II) resulted in significantly higher mean maize grain yield (2 199 kg/ha) with 8.3 and 14.6% yield superiority over the conventional tillage and reduced tillage (RT I). Application of recommended dose of nitrogen through inorganic source recorded significantly higher mean grain yield of 2 245 kg/ha in comparison to application of recommended dose of nitrogen through compost and integration of inorganic and organic sources (50: 50 basis). Conventional tillage was found to be superior for attaining higher grain yield of wheat (2 525 kg/ha) under rainfed conditions. However, when RT I was integrated with post-emergence herbicide-based weed control (RT II), significant improvement in yield (9.6%) was noticed and it was found to be at par with conventional tillage. The lowest CV (25.1%) and highest sustainable yield index (SYI) (0.61) recorded with RT II as against the CV of 27.9% and SYI of 0.54 under conventional tillage indicated its more reliability and optimum tillage for not only resource conservation but also for attaining higher productivity under rainfed conditions. Application of 100% N through organic source resulted in significantly lower wheat yield (2 248 kg/ha). However, substituting the source of N from organic to inorganic, a significant improvement in yield was noticed, which was found to be 10.9% with 50% substitution while with 100% substitution it was 10.7%.
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Claims 10
Claim · model-written summary
Modified reduced tillage raised maize grain yield to 2 199 kg/ha, 8.3% above conventional tillage.
- Treatment
- Modified reduced tillage (RT II)e1
- Outcome
- maize grain yielde1
- Direction
- highere1
- Value
- 8.3e1
- Qualifier
- 2 199 kg/hae1
- Comparator
- conventional tillagee1
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize (Zea mays L.)-wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“Modified reduced tillage (RT II) resulted in significantly higher mean maize grain yield (2 199 kg/ha) with 8.3 and 14.6% yield superiority over the conventional tillage and reduced tillage (RT I)”
Claim · model-written summary
Modified reduced tillage raised maize grain yield 14.6% above reduced tillage RT I.
- Treatment
- Modified reduced tillage (RT II)e1
- Outcome
- maize grain yielde1
- Direction
- highere1
- Value
- 14.6%e1
- Comparator
- reduced tillage (RT I)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize (Zea mays L.)”
e1“Modified reduced tillage (RT II) resulted in significantly higher mean maize grain yield (2 199 kg/ha) with 8.3 and 14.6% yield superiority over the conventional tillage and reduced tillage (RT I)”
Claim · model-written summary
Inorganic nitrogen gave significantly higher maize grain yield than compost or mixed nitrogen sources.
- Treatment
- recommended dose of nitrogen through inorganic sourcee1
- Outcome
- grain yielde1
- Direction
- highere1
- Value
- 2 245 kg/hae1
- Comparator
- recommended dose of nitrogen through compost and integration of inorganic and organic sources (50: 50 basis)e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“maize (Zea mays L.)”
e1“Application of recommended dose of nitrogen through inorganic source recorded significantly higher mean grain yield of 2 245 kg/ha in comparison to application of recommended dose of nitrogen through compost and integration of inorganic and organic sources (50: 50 basis)”
Claim · model-written summary
Conventional tillage gave superior wheat yield of 2 525 kg/ha under rainfed conditions.
- Taxon
- wheat
Triticum aestivume0 - Treatment
- Conventional tillagee1
- Outcome
- grain yield of wheate1
- Direction
- highere1
- Value
- 2 525 kg/hae1
- Setting
- rainfed conditionse1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“Conventional tillage was found to be superior for attaining higher grain yield of wheat (2 525 kg/ha) under rainfed conditions”
Claim · model-written summary
Adding post-emergence herbicide weed control to RT I increased wheat yield by 9.6% and matched conventional tillage.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RT I was integrated with post-emergence herbicide-based weed control (RT II)e1
- Outcome
- yielde1
- Direction
- improvemente1
- Value
- 9.6%e1
- Comparator
- conventional tillagee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“when RT I was integrated with post-emergence herbicide-based weed control (RT II), significant improvement in yield (9.6%) was noticed and it was found to be at par with conventional tillage”
Claim · model-written summary
RT II had a lower yield CV, 25.1%, than conventional tillage at 27.9%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RT IIe1
- Outcome
- CVe1
- Direction
- loweste1
- Value
- 25.1%e1
- Qualifier
- 27.9%e1
- Comparator
- conventional tillagee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“The lowest CV (25.1%) and highest sustainable yield index (SYI) (0.61) recorded with RT II as against the CV of 27.9% and SYI of 0.54 under conventional tillage”
Claim · model-written summary
RT II had a higher sustainable yield index, 0.61, than conventional tillage at 0.54.
- Taxon
- wheatTriticum aestivume0
- Treatment
- RT IIe1
- Outcome
- sustainable yield index (SYI)e1
- Direction
- higheste1
- Value
- 0.61e1
- Qualifier
- 0.54e1
- Comparator
- conventional tillagee1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“The lowest CV (25.1%) and highest sustainable yield index (SYI) (0.61) recorded with RT II as against the CV of 27.9% and SYI of 0.54 under conventional tillage”
Claim · model-written summary
Entirely organic nitrogen resulted in significantly lower wheat yield of 2 248 kg/ha.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 100% N through organic sourcee1
- Outcome
- wheat yielde1
- Direction
- lowere1
- Value
- 2 248 kg/hae1
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“Application of 100% N through organic source resulted in significantly lower wheat yield (2 248 kg/ha)”
Claim · model-written summary
Replacing half the organic nitrogen with inorganic nitrogen improved wheat yield by 10.9%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 50% substitutione1
- Outcome
- yielde1
- Direction
- improvemente1
- Value
- 10.9%e1
- Comparator
- organice1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“substituting the source of N from organic to inorganic, a significant improvement in yield was noticed, which was found to be 10.9% with 50% substitution”
Claim · model-written summary
Replacing all organic nitrogen with inorganic nitrogen improved wheat yield by 10.7%.
- Taxon
- wheatTriticum aestivume0
- Treatment
- 100% substitutione1
- Outcome
- yielde1
- Direction
- improvemente1
- Value
- 10.7%e1
- Comparator
- organice1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“wheat (Triticum aestivum L. emend Fiori & Paol)”
e1“substituting the source of N from organic to inorganic, a significant improvement in yield was noticed, which was found to be 10.9% with 50% substitution while with 100% substitution it was 10.7%”
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