Abstract
A field experiment was conducted on sandy clay loam soil of Andhra Pradesh during kharif and rabi seasonsics of rice-zero till maize cropping system. The results showed that the rejuvenation of rice stubbles in the sequence crop of rabi maize were more in early harvested than late harvested rice varieties and reverse was the trend in weed growth. Among herbicide treatments, use of paraquat as pre-emergence application for controlling rejuvenation of rice stubbles in zero-till maize was superior to pre-emergence application of atrazine and no-herbicide treatment. On the other hand pre-emergence application of atrazine was more effective in controlling first flush of weeds than paraquat and no-herbicide treatment. Herbicide treatments, consequent to termination of rice stubble and weed competition, promoted plant growth, dry matter production, nutrient uptake, yield structure and yield of maize and consequently productivity and economics of the system as compared to no-herbicide treatment. Rice-zero till maize irrespective of the herbicide supplementation gave higher rice equivalent yield, net returns and benefit of cost when compared to existing rice-pulse sequence. However, soil fertility status and microbial status of the rice-maize cropping system was no match to the existing system of rice-pulse sequence and herbicide treatments did not exhibit any detrimental effect on microbial population. of 2006-07 and 2007-08 on the effect of weed management practices on the productivity and economy.
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Claims 12
Claim · model-written summary
Early harvested rice varieties had more rice stubble rejuvenation than late harvested varieties.
- Taxon
- rice
Oryza sativae0 - Outcome
- rejuvenation of rice stubblese0
- Direction
- moree0
- Comparator
- late harvested rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the rejuvenation of rice stubbles in the sequence crop of rabi maize were more in early harvested than late harvested rice varieties and reverse was the trend in weed growth.”
Claim · model-written summary
Weed growth was lower after early harvested than late harvested rice varieties.
- Taxon
- riceOryza sativae0
- Outcome
- weed growthe0
- Direction
- reversee0
- Comparator
- late harvested rice varietiese0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“early harvested than late harvested rice varieties and reverse was the trend in weed growth.”
Claim · model-written summary
Pre-emergence paraquat controlled rice stubble rejuvenation better than atrazine or no herbicide.
- Treatment
- paraquat as pre-emergence applicatione0
- Outcome
- controlling rejuvenation of rice stubblese0
- Direction
- superiore0
- Comparator
- pre-emergence application of atrazine and no-herbicide treatmente0
Zea maysOrganisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“use of paraquat as pre-emergence application for controlling rejuvenation of rice stubbles in zero-till maize was superior to pre-emergence application of atrazine and no-herbicide treatment.”
Claim · model-written summary
Pre-emergence atrazine controlled the first weed flush better than paraquat or no herbicide.
- Treatment
- pre-emergence application of atrazinee0
- Outcome
- controlling first flush of weedse0
- Direction
- more effectivee0
- Comparator
- paraquat and no-herbicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“pre-emergence application of atrazine was more effective in controlling first flush of weeds than paraquat and no-herbicide treatment.”
t0“maize”
Claim · model-written summary
Herbicide treatments promoted maize growth and dry matter production relative to no herbicide.
- Treatment
- Herbicide treatmentse0
- Outcome
- plant growth, dry matter productione0
- Direction
- promotede0
- Comparator
- no-herbicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicide treatments, consequent to termination of rice stubble and weed competition, promoted plant growth, dry matter production, nutrient uptake, yield structure and yield of maize and consequently productivity and economics of the system as compared to no-herbicide treatment.”
Claim · model-written summary
Herbicide treatments promoted maize nutrient uptake relative to no herbicide.
- Treatment
- Herbicide treatmentse0
- Outcome
- nutrient uptakee0
- Direction
- promotede0
- Comparator
- no-herbicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicide treatments, consequent to termination of rice stubble and weed competition, promoted plant growth, dry matter production, nutrient uptake, yield structure and yield of maize and consequently productivity and economics of the system as compared to no-herbicide treatment.”
Claim · model-written summary
Herbicide treatments promoted maize yield structure and yield relative to no herbicide.
- Treatment
- Herbicide treatmentse0
- Outcome
- yield structure and yielde0
- Direction
- promotede0
- Comparator
- no-herbicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicide treatments, consequent to termination of rice stubble and weed competition, promoted plant growth, dry matter production, nutrient uptake, yield structure and yield of maize and consequently productivity and economics of the system as compared to no-herbicide treatment.”
Claim · model-written summary
Herbicide treatments improved system productivity and economics relative to no herbicide.
- Treatment
- Herbicide treatmentse0
- Outcome
- productivity and economicse0
- Direction
- promotede0
- Comparator
- no-herbicide treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Herbicide treatments, consequent to termination of rice stubble and weed competition, promoted plant growth, dry matter production, nutrient uptake, yield structure and yield of maize and consequently productivity and economics of the system as compared to no-herbicide treatment.”
Claim · model-written summary
Rice–zero till maize had higher rice equivalent yield than rice–pulse sequence.
- Treatment
- Rice-zero till maizee0
- Outcome
- rice equivalent yielde0
- Direction
- highere0
- Comparator
- existing rice-pulse sequencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice-zero till maize irrespective of the herbicide supplementation gave higher rice equivalent yield, net returns and benefit of cost when compared to existing rice-pulse sequence.”
Claim · model-written summary
Rice–zero till maize had higher net returns and benefit of cost than rice–pulse sequence.
- Treatment
- Rice-zero till maizee0
- Outcome
- net returns and benefit of coste0
- Direction
- highere0
- Comparator
- existing rice-pulse sequencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Rice-zero till maize irrespective of the herbicide supplementation gave higher rice equivalent yield, net returns and benefit of cost when compared to existing rice-pulse sequence.”
Claim · model-written summary
Rice–maize soil fertility and microbial status did not match the rice–pulse system.
- Outcome
- soil fertility status and microbial statuse0
- Comparator
- existing system of rice-pulse sequencee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“soil fertility status and microbial status of the rice-maize cropping system was no match to the existing system of rice-pulse sequence”
Claim · model-written summary
Herbicide treatments showed no detrimental effect on microbial population.
- Treatment
- herbicide treatmentse0
- Outcome
- microbial populatione0
- Direction
- did not exhibit any detrimental effecte0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“herbicide treatments did not exhibit any detrimental effect on microbial population.”
t0“maize”
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