Abstract
A field experiment was conducted during 1989-90 and 1990-91 at Bangalore. Fodder maize (Zen tncrys L.) and green-manure crops, viz. Sesbnnin rostrntcr, sunnhemp (Crotnlorin juncen L.) and soybean [Glycine mrrr (L.) Mill.], were grown as sole crops and as intercrops, viz, maize + sunnhemp, maize + S. rostrtrtcl and maize + soybean in I : I proportion, preceding rainy-season rice (Oryzn sntivn L.). There was a preceding fallow treatment. Green-manures were incorporated into the soil before planting rainy-season rice. Their effects on yield of rice, sunflower and soil-fertility status was studied. Pre-season green-manure crops, viz. S. rostrntn and sunnhemp, improved the nitrogen, phosphorus and potash contents of the soil under rice-sunflower sequence. The biomass yield and the total productivity of rice and sunflower was maximum with S. rostrntn green-manure, followed by sunnhemp green-manure. Incorporation of the green- manure crops grown as intercrop with maize + sunnhemp, maize + S. rostrnm and maize + soybean or sole soybean did not improve the yield significantly. The organic carbon, available N, P and K contents of the soil improved on inclusion of sunnhemp or S. rostrntn in the sequence. Biomass yield and economic yield of nce and sunflower wCre highest with 100 kg Nlha.
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Claims 7
Claim · model-written summary
S. rostrntn and sunnhemp improved soil nitrogen, phosphorus and potash under the rice–sunflower sequence.
- Treatment
- S. rostrntn and sunnhempe0
- Outcome
- nitrogen, phosphorus and potash contents of the soile0
- Direction
- improvede0
Not reportedTaxonComparator
Verbatim
e0“Pre-season green-manure crops, viz. S. rostrntn and sunnhemp, improved the nitrogen, phosphorus and potash contents of the soil under rice-sunflower sequence.”
Claim · model-written summary
S. rostrntn green manure maximized biomass yield of rice and sunflower.
- Taxon
- rice and sunflower
Helianthus annuus
Oryza sativae0 - Treatment
- S. rostrntn green-manuree0
- Outcome
- biomass yielde0
- Direction
- maximume0
- Comparator
- sunnhemp green-manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass yield and the total productivity of rice and sunflower was maximum with S. rostrntn green-manure, followed by sunnhemp green-manure.”
Claim · model-written summary
S. rostrntn green manure maximized total productivity of rice and sunflower.
- Taxon
- rice and sunflowerHelianthus annuusOryza sativae0
- Treatment
- S. rostrntn green-manuree0
- Outcome
- total productivitye0
- Direction
- maximume0
- Comparator
- sunnhemp green-manuree0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The biomass yield and the total productivity of rice and sunflower was maximum with S. rostrntn green-manure, followed by sunnhemp green-manure.”
Claim · model-written summary
Incorporation of the listed intercrop green manures or sole soybean did not significantly improve yield.
- Taxon
- rice (Oryza sativa)-sunflower (Helianthus annuus)Oryza sativat0
- Treatment
- maize + sunnhemp, maize + S. rostrnm and maize + soybean or sole soybeane0
- Outcome
- yielde0
- Direction
- did not improvee0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Incorporation of the green- manure crops grown as intercrop with maize + sunnhemp, maize + S. rostrnm and maize + soybean or sole soybean did not improve the yield significantly.”
t0“rice (Oryza sativa)-sunflower (Helianthus annuus)”
Claim · model-written summary
Including sunnhemp or S. rostrntn improved soil organic carbon and available N, P and K.
- Treatment
- sunnhemp or S. rostrntne0
- Outcome
- organic carbon, available N, P and K contents of the soile0
- Direction
- improvede0
Not reportedTaxonComparator
Verbatim
e0“The organic carbon, available N, P and K contents of the soil improved on inclusion of sunnhemp or S. rostrntn in the sequence.”
Claim · model-written summary
100 kg Nlha gave the highest rice and sunflower biomass yield.
- Taxon
- rice (Oryza sativa)-sunflower (Helianthus annuus)Oryza sativat0
- Treatment
- 100 kg Nlhae0
- Outcome
- Biomass yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass yield and economic yield of nce and sunflower wCre highest with 100 kg Nlha.”
t0“rice (Oryza sativa)-sunflower (Helianthus annuus)”
Claim · model-written summary
100 kg Nlha gave the highest rice and sunflower economic yield.
- Taxon
- rice (Oryza sativa)-sunflower (Helianthus annuus)Oryza sativat0
- Treatment
- 100 kg Nlhae0
- Outcome
- economic yielde0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Biomass yield and economic yield of nce and sunflower wCre highest with 100 kg Nlha.”
t0“rice (Oryza sativa)-sunflower (Helianthus annuus)”
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