Abstract
In order to prove the effects of regulated deficit irrigation in the earlier growth period of paddy rice in the phaeozem area in the northeast of China,the field experiments were conducted in Qingan County and the field water depth and soil moisture were controlled in different growing periods of paddy rice. Through the investigation of leaf area index and the root system conditions in last tiller stage,it analyzed that the influence of the lowest limits of water on paddy rice growing. The results showed that the amount of irrigation water had a positive effect on both of leaf area index and root weight. Excessive irrigation or lower limit value would affect the crop normal growth,and the regulated deficit irrigation management which was moderate deficit in the earlier tiller stage and lower limit in later tiller stage were the best for paddy rice growth situation.
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Claims 3
Claim · model-written summary
Amount of irrigation water had a positive effect on leaf area index and root weight of paddy rice.
- Taxon
- paddy ricee0
- Treatment
- amount of irrigation watere2
- Outcome
- leaf area index and root weighte2
- Direction
- positive effecte2
- Setting
- phaeozem areae0
Not reportedComparator
Verbatim
e0“in the earlier growth period of paddy rice in the phaeozem area in the northeast of China”
e1“the field experiments were conducted in Qingan County”
e2“The results showed that the amount of irrigation water had a positive effect on both of leaf area index and root weight”
Claim · model-written summary
Excessive irrigation or lower limit value would affect normal crop growth of paddy rice.
Not reportedDirection
Verbatim
e0“in the earlier growth period of paddy rice in the phaeozem area in the northeast of China”
e3“Excessive irrigation or lower limit value would affect the crop normal growth”
Claim · model-written summary
Moderate deficit in the earlier tiller stage and lower limit in later tiller stage were the best regulated deficit irrigation for paddy rice growth.
- Taxon
- paddy ricee4
- Organ / stage
- earlier tiller stagee4
- Treatment
- regulated deficit irrigation management which was moderate deficit in the earlier tiller stage and lower limit in later tiller stagee4
- Outcome
- paddy rice growth situatione4
- Direction
- were the beste4
- Comparator
- Excessive irrigation or lower limit valuee3
- Setting
- Qingan Countye1
Verbatim
e4“the regulated deficit irrigation management which was moderate deficit in the earlier tiller stage and lower limit in later tiller stage were the best for paddy rice growth situation”
e3“Excessive irrigation or lower limit value would affect the crop normal growth”
e1“the field experiments were conducted in Qingan County”
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