Abstract
A field experiment investigating amendments of organic material including farmyard manure, paper factory sludge and crop residues combined with fly ash, lime and chemical fertilizer in a rice-peanut cropping system was conducted during 1997–98 and 1998–99 at the Indian Institute of Technology, Kharagpur, India. The soil was an acid lateritic (Halustaf) sandy loam. For rice, an N:P:K level of 90:26.2:33.3 kg ha−1 was supplied through the organic materials and chemical fertilizer to all the treatments except control and fly ash alone. The required quantities of organic materials were added to supply 30 kg N ha−1 and the balance amount of N, P and K was supplied through chemical fertilizer. Amendment materials as per fertilization treatments were incorporated to individual plots 15 days before planting of rice during the rainy season. The residual effects were studied on the following peanut crop with application of N:P:K at 30:26.2:33.3 kg ha−1 through chemical fertilizer alone in all treatments, apart from the control. An application of fly ash at 10 t ha−1 in combination with chemical fertilizer and organic materials increased the grain yield of rice by 11% compared to chemical fertilizer alone. The residual effect of both lime and fly ash applications combined with direct application of chemical fertilizer increased peanut yields by 30% and 24%, respectively, compared to chemical fertilizer alone. Treatments with fly ash or lime increased P and K uptake in both the crops and oil content in peanut kernel compared to those without the amendments. Alkaline coal fly ash proved to be a better amendment than lime for improving productivity of an acid lateritic soil and enriching the soil with P and K.
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Claims 10
Claim · model-written summary
Fly ash at 10 t ha−1 with fertilizer and organic materials increased rice grain yield by 11% relative to fertilizer alone.
- Taxon
- rice
Oryza sativae0 - Treatment
- fly ash at 10 t ha−1 in combination with chemical fertilizer and organic materialse0
- Outcome
- grain yield of ricee0
- Direction
- increasede0
- Value
- 11%e0
- Comparator
- chemical fertilizer alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“An application of fly ash at 10 t ha−1 in combination with chemical fertilizer and organic materials increased the grain yield of rice by 11% compared to chemical fertilizer alone.”
Claim · model-written summary
Residual lime with fertilizer increased peanut yield by 30% relative to fertilizer alone.
- Taxon
- peanut
Arachis hypogaeae0 - Treatment
- limee0
- Outcome
- peanut yieldse0
- Direction
- increasede0
- Value
- 30%e0
- Comparator
- chemical fertilizer alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The residual effect of both lime and fly ash applications combined with direct application of chemical fertilizer increased peanut yields by 30% and 24%, respectively, compared to chemical fertilizer alone.”
Claim · model-written summary
Residual fly ash with fertilizer increased peanut yield by 24% relative to fertilizer alone.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- fly ashe0
- Outcome
- peanut yieldse0
- Direction
- increasede0
- Value
- 24%e0
- Comparator
- chemical fertilizer alonee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The residual effect of both lime and fly ash applications combined with direct application of chemical fertilizer increased peanut yields by 30% and 24%, respectively, compared to chemical fertilizer alone.”
Claim · model-written summary
Fly ash increased P and K uptake in rice compared with treatments without amendments.
- Taxon
- riceOryza sativat0
- Treatment
- fly ashe0
- Outcome
- P and K uptakee0
- Direction
- increasede0
- Comparator
- those without the amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice-peanut crops”
e0“Treatments with fly ash or lime increased P and K uptake in both the crops and oil content in peanut kernel compared to those without the amendments.”
Claim · model-written summary
Lime increased P and K uptake in rice compared with treatments without amendments.
- Taxon
- riceOryza sativat0
- Treatment
- limee0
- Outcome
- P and K uptakee0
- Direction
- increasede0
- Comparator
- those without the amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice-peanut crops”
e0“Treatments with fly ash or lime increased P and K uptake in both the crops and oil content in peanut kernel compared to those without the amendments.”
Claim · model-written summary
Fly ash increased P and K uptake in peanut compared with treatments without amendments.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- fly ashe0
- Outcome
- P and K uptakee0
- Direction
- increasede0
- Comparator
- those without the amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice-peanut crops”
e0“Treatments with fly ash or lime increased P and K uptake in both the crops and oil content in peanut kernel compared to those without the amendments.”
Claim · model-written summary
Lime increased P and K uptake in peanut compared with treatments without amendments.
- Taxon
- peanutArachis hypogaeat0
- Treatment
- limee0
- Outcome
- P and K uptakee0
- Direction
- increasede0
- Comparator
- those without the amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice-peanut crops”
e0“Treatments with fly ash or lime increased P and K uptake in both the crops and oil content in peanut kernel compared to those without the amendments.”
Claim · model-written summary
Fly ash increased oil content in peanut kernel compared with treatments without amendments.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- fly ashe0
- Outcome
- oil content in peanut kernele0
- Direction
- increasede0
- Comparator
- those without the amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments with fly ash or lime increased P and K uptake in both the crops and oil content in peanut kernel compared to those without the amendments.”
Claim · model-written summary
Lime increased oil content in peanut kernel compared with treatments without amendments.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- limee0
- Outcome
- oil content in peanut kernele0
- Direction
- increasede0
- Comparator
- those without the amendmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Treatments with fly ash or lime increased P and K uptake in both the crops and oil content in peanut kernel compared to those without the amendments.”
Claim · model-written summary
The authors judged alkaline coal fly ash better than lime for productivity and soil P and K enrichment.
Verbatim
t0“rice-peanut crops”
e0“Alkaline coal fly ash proved to be a better amendment than lime for improving productivity of an acid lateritic soil and enriching the soil with P and K.”
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