Abstract
The study aimed to investigate an effect of organic fertilizer applied to rice in the first planting season for unfertilized soybean as second crop followed by inorganic and biofertilizer applied in the third season on soybean growth and yield under the rice-soybean-soybean cropping pattern in 2016/2017. The main plot was organic: (1) without organic amendment, (2) 10 t·ha−1 of chicken manure, and (3) 10 t·ha−1 precomposted rice straw. The subplot was inorganic N and P fertilizers and commercial biofertilizer (consisting of Rhizobium, nitrogen-fixing bacteria, and P-solubilizing bacteria) applied at planting of soybeans in the second dry season: (1) control (no inorganic and biofertilizer), (2) 50 kg urea ha−1, (3) 100 kg SP36·ha−1, (4) 50 kg urea + 100 kg SP36 ha−1, (5) biofertilizer, (6) biofertilizer + 25 kg urea ha−1, (7) biofertilizer + 75 kg SP36 ha 1, and (8) biofertilizer + 25 kg urea + 75 kg SP36 ha−1. Soybean planted on the first dry season after rice harvested was not fertilized (untreated). The results showed that the chicken manure amendment increased grain yield of soybean in the second season, i.e., from 1.03 t·ha−1 (without organic amendment) to 1.27 t·ha−1, an increase of 23%. There was no effect of rice straw on soybean grain yield. In the third season, however, the residual effect of straw compost or chicken manure increased soybean grain yield by 8% and 20%, respectively. Both straw compost and chicken manure also showed a positive effect on the use of inorganic and biofertilizers in increasing soybean productivity.
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Claims 5
Claim · model-written summary
Chicken manure amendment increased soybean grain yield in the second season by 23%, from 1.03 t·ha−1 without organic amendment.
- Taxon
- soybean
Glycine maxe1 - Treatment
- chicken manure amendmente1
- Outcome
- grain yielde1
- Direction
- increasede1
- Value
- 23%e1
- Qualifier
- 1.03 t·ha−1e1
- Comparator
- without organic amendmente1
- Setting
- second seasone1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Yield”
e1“the chicken manure amendment increased grain yield of soybean in the second season, i.e., from 1.03 t·ha−1 (without organic amendment) to 1.27 t·ha−1, an increase of 23%”
Claim · model-written summary
Rice straw had no effect on soybean grain yield.
- Taxon
- soybeanGlycine maxe2
- Treatment
- rice strawe2
- Outcome
- grain yielde2
- Direction
- no effecte2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Yield”
e2“There was no effect of rice straw on soybean grain yield”
Claim · model-written summary
Residual effect of straw compost increased soybean grain yield by 8% in the third season.
- Taxon
- soybeanGlycine maxe3
- Treatment
- residual effect of straw compost or chicken manuree3
- Outcome
- grain yielde3
- Direction
- increasede3
- Value
- 8%e3
- Setting
- third seasone3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Yield”
e3“In the third season, however, the residual effect of straw compost or chicken manure increased soybean grain yield by 8% and 20%, respectively”
Claim · model-written summary
Residual effect of chicken manure increased soybean grain yield by 20% in the third season.
- Taxon
- soybeanGlycine maxe3
- Treatment
- residual effect of straw compost or chicken manuree3
- Outcome
- grain yielde3
- Direction
- increasede3
- Value
- 20%e3
- Setting
- third seasone3
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Yield”
e3“In the third season, however, the residual effect of straw compost or chicken manure increased soybean grain yield by 8% and 20%, respectively”
Claim · model-written summary
Straw compost and chicken manure had a positive effect on the use of inorganic and biofertilizers in increasing soybean productivity.
- Taxon
- soybeanGlycine maxe4
- Treatment
- straw compost and chicken manuree4
- Outcome
- soybean productivitye4
- Direction
- increasinge4
- Qualifier
- use of inorganic and biofertilizerse4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“Soybean Yield”
e4“Both straw compost and chicken manure also showed a positive effect on the use of inorganic and biofertilizers in increasing soybean productivity”
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