Abstract
A field experiment was conducted during the winter (rabl) seasons of 2002-03 and 2003-04 at Pusa, Bihar, to study the impact of fertilizer and weed-management practices on nutrient economy and yield of wheat (Triti- cum aestivum L. emend. Fiori & Paol.). Placement of fertilizers significantly reduced weed dry biomass, NPK depletion by weed and increased yield attributes, grain and straw yields, net return, net returnlrupee investment and NPK uptake by crop than broadcast method of fertilizer. Application of 125% of the recommended dose of fertilizer (150:75:50 kg N:P:Wha) recorded significantly higher weed dry biomass, grain and straw yields, net re- turn and NPK uptake by crop than recommended (120:60:40 kg N:P:Wha) and 75% of the recommended dose of fertilizer (90:45:30 kg N:P:Wha). However, net returnlrupee investment increased significantly only up to recom- mended dose of fertilizer. Hand-weeding recorded significantly higher plant height, leaf-area index, tillers/m2, graindear, grain and straw yields than mixture of 2,4-D + isoproturon, but was at par with those recorded under sulfosulfuron. Sulfosulfuron recorded lowest weed population, weed dry biomass, NPK depletion by weed and highest weed-control efficiency. Placement of recommended dose of fertilizer resulted in significantly hlgher grain yield than broadcast of 125% of the recommended dose of fertilizer, Similarly, recommended dose of fertil- izer under weed-control treatments recorded significantly higher grain yield than 125% of recommended dose of fertilizer under weedy check. Weed-control treatments also recorded higher protein content in grain.
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Claims 15
Claim · model-written summary
Fertilizer placement reduced weed biomass and weed NPK depletion relative to broadcasting.
- Taxon
- wheat
Triticum aestivumt0 - Treatment
- Placement of fertilizerse0
- Outcome
- weed dry biomass, NPK depletion by weede0
- Direction
- reducede0
- Comparator
- broadcast method of fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Placement of fertilizers significantly reduced weed dry biomass, NPK depletion by weed and increased yield attributes, grain and straw yields, net return, net returnlrupee investment and NPK uptake by crop than broadcast method of fertilizer”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Fertilizer placement increased wheat yield attributes and grain and straw yields relative to broadcasting.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Placement of fertilizerse0
- Outcome
- yield attributes, grain and straw yieldse0
- Direction
- increasede0
- Comparator
- broadcast method of fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Placement of fertilizers significantly reduced weed dry biomass, NPK depletion by weed and increased yield attributes, grain and straw yields, net return, net returnlrupee investment and NPK uptake by crop than broadcast method of fertilizer”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Fertilizer placement increased net returns and return per rupee relative to broadcasting.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Placement of fertilizerse0
- Outcome
- net return, net returnlrupee investmente0
- Direction
- increasede0
- Comparator
- broadcast method of fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Placement of fertilizers significantly reduced weed dry biomass, NPK depletion by weed and increased yield attributes, grain and straw yields, net return, net returnlrupee investment and NPK uptake by crop than broadcast method of fertilizer”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Fertilizer placement increased crop NPK uptake relative to broadcasting.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Placement of fertilizerse0
- Outcome
- NPK uptake by crope0
- Direction
- increasede0
- Comparator
- broadcast method of fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Placement of fertilizers significantly reduced weed dry biomass, NPK depletion by weed and increased yield attributes, grain and straw yields, net return, net returnlrupee investment and NPK uptake by crop than broadcast method of fertilizer”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
The 125% fertilizer dose increased weed biomass versus lower doses.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 125% of the recommended dose of fertilizere0
- Outcome
- weed dry biomasse0
- Direction
- highere0
- Comparator
- recommendede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 125% of the recommended dose of fertilizer (150:75:50 kg N:P:Wha) recorded significantly higher weed dry biomass, grain and straw yields, net re- turn and NPK uptake by crop than recommended (120:60:40 kg N:P:Wha) and 75% of the recommended dose of fertilizer (90:45:30 kg N:P:Wha)”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
The 125% fertilizer dose increased grain and straw yields and net return versus lower doses.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 125% of the recommended dose of fertilizere0
- Outcome
- grain and straw yields, net re- turne0
- Direction
- highere0
- Comparator
- recommendede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 125% of the recommended dose of fertilizer (150:75:50 kg N:P:Wha) recorded significantly higher weed dry biomass, grain and straw yields, net re- turn and NPK uptake by crop than recommended (120:60:40 kg N:P:Wha) and 75% of the recommended dose of fertilizer (90:45:30 kg N:P:Wha)”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
The 125% fertilizer dose increased crop NPK uptake versus lower doses.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- 125% of the recommended dose of fertilizere0
- Outcome
- NPK uptake by crope0
- Direction
- highere0
- Comparator
- recommendede0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Application of 125% of the recommended dose of fertilizer (150:75:50 kg N:P:Wha) recorded significantly higher weed dry biomass, grain and straw yields, net re- turn and NPK uptake by crop than recommended (120:60:40 kg N:P:Wha) and 75% of the recommended dose of fertilizer (90:45:30 kg N:P:Wha)”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Return per rupee rose significantly only up to the recommended fertilizer dose.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- recom- mended dose of fertilizere0
- Outcome
- net returnlrupee investmente0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“net returnlrupee investment increased significantly only up to recom- mended dose of fertilizer”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Hand-weeding increased wheat height, leaf area, tillers, grains per ear and yields versus 2,4-D plus isoproturon.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Hand-weedinge0
- Outcome
- plant height, leaf-area index, tillers/m2e0
- Direction
- highere0
- Comparator
- mixture of 2,4-D + isoproturone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hand-weeding recorded significantly higher plant height, leaf-area index, tillers/m2, graindear, grain and straw yields than mixture of 2,4-D + isoproturon, but was at par with those recorded under sulfosulfuron”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Hand-weeding yielded values on par with sulfosulfuron.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Hand-weedinge0
- Outcome
- at pare0
- Direction
- at pare0
- Comparator
- sulfosulfurone0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Hand-weeding recorded significantly higher plant height, leaf-area index, tillers/m2, graindear, grain and straw yields than mixture of 2,4-D + isoproturon, but was at par with those recorded under sulfosulfuron”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Sulfosulfuron gave the lowest weed population, biomass and weed NPK depletion.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Sulfosulfurone0
- Outcome
- weed population, weed dry biomass, NPK depletion by weede0
- Direction
- loweste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulfosulfuron recorded lowest weed population, weed dry biomass, NPK depletion by weed and highest weed-control efficiency”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Sulfosulfuron gave the highest weed-control efficiency.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Sulfosulfurone0
- Outcome
- weed-control efficiencye0
- Direction
- higheste0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Sulfosulfuron recorded lowest weed population, weed dry biomass, NPK depletion by weed and highest weed-control efficiency”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Placed recommended fertilizer yielded more grain than broadcast 125% fertilizer.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Placement of recommended dose of fertilizere0
- Outcome
- grain yielde0
- Direction
- hlghere0
- Comparator
- broadcast of 125% of the recommended dose of fertilizere0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Placement of recommended dose of fertilizer resulted in significantly hlgher grain yield than broadcast of 125% of the recommended dose of fertilizer”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Recommended fertilizer with weed control yielded more grain than 125% fertilizer without weed control.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- recommended dose of fertil- izer under weed-control treatmentse0
- Outcome
- grain yielde0
- Direction
- highere0
- Comparator
- 125% of recommended dose of fertilizer under weedy checke0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“recommended dose of fertil- izer under weed-control treatments recorded significantly higher grain yield than 125% of recommended dose of fertilizer under weedy check”
t0“wheat (Triticum aestivum)”
Claim · model-written summary
Weed control increased wheat grain protein content.
- Taxon
- wheatTriticum aestivumt0
- Treatment
- Weed-control treatmentse0
- Outcome
- protein content in graine0
- Direction
- highere0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Weed-control treatments also recorded higher protein content in grain”
t0“wheat (Triticum aestivum)”
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- no effect
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