Abstract
Background and Objective: This study was conducted to investigate the combined use of duck in different rice cultivation systems on growth indices, photosynthesis and water productivity of fields.Materials and Methods: The experiment was carried out as a split plot factorial experiment based on randomized complete block design with three replications in Research Farm, Faculty of Agricultural Sciences, University of Guilan, in 2017 and 2018 years. Treatments included of three levels of cultivation system; Conventional Cultivation (CC), Improved Cultivation (IC) and SRI (System of Rice Intensification) as the main factor and combined of two levels of duck (control and 750 duck per hectare) and three levels of weed control (control, once and twice weeding) factorials as a sub-factor.Results: The results showed that the beginning of the growing period, all experiment treatments showed a significant difference in terms of leaf area index and with increasing the length of the growing period; the increase in leaf area index was greater in terms of combine treatments of 750 ducks per hectare and SRI. At the beginning of growth, CGR in SRI system was slower than the others and in the middle to late growth period, CGR rate values were in SRI>IC>CC. In un-use duck conditions, Conclusion: In general, the combined application of rice-duck in different cultivation systems can be considered suitable for improving the quantitative yield and growth and physiological indicators of rice to achieve sustainable agricultural goals and increase farmers' income per unit area in the plain areas of Guilan.
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Claims 4
Claim · model-written summary
Late in the growing period, leaf area index increased more under ducks combined with SRI.
- Taxon
- rice
Oryza sativae1 - Treatment
- 750 ducks per hectare and SRIe0
- Outcome
- leaf area indexe0
- Direction
- greatere0
AnasNot reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the increase in leaf area index was greater in terms of combine treatments of 750 ducks per hectare and SRI”
e1“rice cultivation systems”
Claim · model-written summary
At the beginning of growth, crop growth rate was slower in SRI than other systems.
- Taxon
- riceOryza sativae1
- Treatment
- SRI systeme0
- Outcome
- CGRe0
- Direction
- slowere0
- Qualifier
- At the beginning of growthe0
- Comparator
- the otherse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“At the beginning of growth, CGR in SRI system was slower than the others”
e1“rice cultivation systems”
Claim · model-written summary
From middle to late growth, crop growth rate ranked SRI above IC above CC.
- Taxon
- riceOryza sativae1
- Outcome
- CGR rate valuese0
- Direction
- higherinferrede0
- Qualifier
- in the middle to late growth periode0
- Comparator
- SRI>IC>CCe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in the middle to late growth period, CGR rate values were in SRI>IC>CC”
e1“rice cultivation systems”
Claim · model-written summary
The authors considered rice-duck systems suitable for improving rice yield and growth indicators.
- Taxon
- riceOryza sativae0
- Treatment
- combined application of rice-ducke0
- Outcome
- improving the quantitative yield and growth and physiological indicators of ricee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“combined application of rice-duck in different cultivation systems can be considered suitable for improving the quantitative yield and growth and physiological indicators of rice”
The same questions in other papers
irrigation · growth · Oryza sativa (rice)Positive and negative results
221 papers in the same direction as this paper · 62 in the opposite direction · 7 reporting no difference from an alternative
- negative
- negative
- negative
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See all 291 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.