Abstract
Field experiments were conducted at the Crop Research Centre of Govind Ballabh Pant University of Agriculture and Technology, Pantnagar during 1996/97 and 1997/98. Each experiment comprised 10 crop sequences: (a) wheat–rice, (b) chickpea–rice, (c) lentil–rice, (d) pea–rice, (e) wheat–mungbean green manure–rice, (f) wheat–Sesbania green manure–rice, (g) wheat–fodder–rice, (h) chickpea–fodder–rice, (i) lentil–fodder–rice and (j) pea–fodder–rice, in a randomized block design with four replications. The crop sequences were compared in terms of economic rice equivalent yield (REY), protein production, apparent nutrient balances and effect on soil fertility status. Amongst crop sequences involving two crops each year (200% cropping intensity), chickpea–rice gave highest REY and protein production. Of the sequences involving three crops each year (300% cropping intensity), chickpea–fodder–rice and wheat–fodder–rice were superior to others. The P balances were positive for all sequences, whereas K balances were generally negative except for sequences involving green manure legumes. Green manuring with Sesbania or mungbean helped restore soil fertility, indicating the advantage of green manure for higher productivity and sustainability of rice–wheat system. Chickpea–rice and chickpea–fodder–rice appeared promising alternatives to rice–wheat crop sequence.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. Read at the source ↗
The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 9
Claim · model-written summary
Chickpea–rice had the highest rice equivalent yield and protein production among two crop sequences.
- Taxon
- rice–wheat
Oryza sativa
Triticum aestivumt0 - Treatment
- chickpea–ricee0
- Outcome
- REY and protein productione0
- Direction
- higheste0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Amongst crop sequences involving two crops each year (200% cropping intensity), chickpea–rice gave highest REY and protein production.”
t0“rice–wheat cropping system”
Claim · model-written summary
Chickpea–fodder–rice was superior among three crop sequences.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Treatment
- chickpea–fodder–ricee0
- Outcome
- superior to otherse0
- Direction
- superiore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the sequences involving three crops each year (300% cropping intensity), chickpea–fodder–rice and wheat–fodder–rice were superior to others.”
t0“rice–wheat cropping system”
Claim · model-written summary
Wheat–fodder–rice was superior among three crop sequences.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Treatment
- wheat–fodder–ricee0
- Outcome
- superior to otherse0
- Direction
- superiore0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Of the sequences involving three crops each year (300% cropping intensity), chickpea–fodder–rice and wheat–fodder–rice were superior to others.”
t0“rice–wheat cropping system”
Claim · model-written summary
Phosphorus balances were positive across all sequences.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Outcome
- P balancese0
- Direction
- positivee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The P balances were positive for all sequences”
t0“rice–wheat cropping system”
Claim · model-written summary
Potassium balances were generally negative except with green manure legumes.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Outcome
- K balancese0
- Direction
- negativee0
- Qualifier
- except for sequences involving green manure legumese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“K balances were generally negative except for sequences involving green manure legumes.”
t0“rice–wheat cropping system”
Claim · model-written summary
Sesbania green manure helped restore soil fertility.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Treatment
- Sesbaniae0
- Outcome
- soil fertilitye0
- Direction
- restoree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Green manuring with Sesbania or mungbean helped restore soil fertility”
t0“rice–wheat cropping system”
Claim · model-written summary
Mungbean green manure helped restore soil fertility.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Treatment
- mungbeane0
- Outcome
- soil fertilitye0
- Direction
- restoree0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Green manuring with Sesbania or mungbean helped restore soil fertility”
t0“rice–wheat cropping system”
Claim · model-written summary
Chickpea–rice was identified as a promising alternative to rice–wheat.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Outcome
- Chickpea–ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chickpea–rice and chickpea–fodder–rice appeared promising alternatives to rice–wheat crop sequence.”
t0“rice–wheat cropping system”
Claim · model-written summary
Chickpea–fodder–rice was identified as a promising alternative to rice–wheat.
- Taxon
- rice–wheatOryza sativaTriticum aestivumt0
- Outcome
- chickpea–fodder–ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Chickpea–rice and chickpea–fodder–rice appeared promising alternatives to rice–wheat crop sequence.”
t0“rice–wheat cropping system”
The same questions in other papers
Vigna radiata · soil: chemistry · Triticum aestivum (wheat)Positive and negative results
2 papers in the same direction as this paper · 1 in the opposite direction
- negative
- positive
- positive
Sesbania · soil: chemistry · Oryza sativa (rice)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 papers →Vigna radiata · soil: chemistry · Oryza sativa (rice)Results agree
4 papers in the same direction as this paper
- positive
- positive
- positive
1 paper more in this group
See all 5 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.