Abstract
Four-year plot experiments were conducted to investigate the effects of water-catching and controllable irrigation(WCCI) modes on the quota of irrigation and drainage,the times of irrigation and drainage,and grain yield.The results indicate that the water-storage depth after rainfall of the conventional irrigation mode and shallow frequent irrigation model can be appropriately increased.Compared with conventional irrigation,the irrigation quota and drainage quota under WCCI decreased by 21.3% to 47.0% and 13.1% to 83.9%,respectively,and the irrigation and drainage times under WCCI decreased by 2 to 9 times and 2 to 3 times,respectively;compared with shallow frequent irrigation,the irrigation quota and drainage quota under WCCI decreased by 6.7% to 22.9% and 21.9% to 100%,respectively;and the irrigation and drainage times under WCCI decrease by 1 to 4 times and 2 times.The grain yield of rice was not reduced by appropriately increasing the water-storage depth after rainfall while maintaining the lower irrigation quantity of the current water-saving irrigation model,but excessive water-storage depth after rainfall resulted in a small reduction of grain yield in three-year trials.The results suggest that WCCI has the advantages of water saving,drainage reduction,and labor saving,and it is suitable for rainy regions in South China.
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The text the model read, with the source record’s inline markup (italics, sub- and superscripts) rendered and its character entities decoded; quote offsets refer to the raw text.
Claims 11
Claim · model-written summary
WCCI decreased irrigation quota by 21.3% to 47.0% versus conventional irrigation for rice.
- Taxon
- rice
Oryza sativat0 - Treatment
- WCCIe0
- Outcome
- irrigation quotae0
- Direction
- decreasede0
- Value
- 21.3% to 47.0%e0
- Comparator
- conventional irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Compared with conventional irrigation,the irrigation quota and drainage quota under WCCI decreased by 21.3% to 47.0% and 13.1% to 83.9%,respectively,and the irrigation and drainage times under WCCI decreased by 2 to 9 times and 2 to 3 times,respectively”
Claim · model-written summary
WCCI decreased drainage quota by 13.1% to 83.9% versus conventional irrigation for rice.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- drainage quotae0
- Direction
- decreasede0
- Value
- 13.1% to 83.9%e0
- Comparator
- conventional irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Compared with conventional irrigation,the irrigation quota and drainage quota under WCCI decreased by 21.3% to 47.0% and 13.1% to 83.9%,respectively,and the irrigation and drainage times under WCCI decreased by 2 to 9 times and 2 to 3 times,respectively”
Claim · model-written summary
WCCI decreased irrigation times by 2 to 9 times versus conventional irrigation for rice.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- irrigation and drainage timese0
- Direction
- decreasede0
- Value
- 2 to 9 timese0
- Comparator
- conventional irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Compared with conventional irrigation,the irrigation quota and drainage quota under WCCI decreased by 21.3% to 47.0% and 13.1% to 83.9%,respectively,and the irrigation and drainage times under WCCI decreased by 2 to 9 times and 2 to 3 times,respectively”
Claim · model-written summary
WCCI decreased drainage times by 2 to 3 times versus conventional irrigation for rice.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- drainage timese0
- Direction
- decreasede0
- Value
- 2 to 3 timese0
- Comparator
- conventional irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“Compared with conventional irrigation,the irrigation quota and drainage quota under WCCI decreased by 21.3% to 47.0% and 13.1% to 83.9%,respectively,and the irrigation and drainage times under WCCI decreased by 2 to 9 times and 2 to 3 times,respectively”
Claim · model-written summary
WCCI decreased irrigation quota by 6.7% to 22.9% versus shallow frequent irrigation for rice.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- irrigation quotae0
- Direction
- decreasee0
- Value
- 6.7% to 22.9%e0
- Comparator
- shallow frequent irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“compared with shallow frequent irrigation,the irrigation quota and drainage quota under WCCI decreased by 6.7% to 22.9% and 21.9% to 100%,respectively;and the irrigation and drainage times under WCCI decrease by 1 to 4 times and 2 times”
Claim · model-written summary
WCCI decreased drainage quota by 21.9% to 100% versus shallow frequent irrigation for rice.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- drainage quotae0
- Direction
- decreasee0
- Value
- 21.9% to 100%e0
- Comparator
- shallow frequent irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“compared with shallow frequent irrigation,the irrigation quota and drainage quota under WCCI decreased by 6.7% to 22.9% and 21.9% to 100%,respectively;and the irrigation and drainage times under WCCI decrease by 1 to 4 times and 2 times”
Claim · model-written summary
WCCI decreased irrigation times by 1 to 4 times versus shallow frequent irrigation for rice.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- irrigation and drainage timese0
- Direction
- decreasee0
- Value
- 1 to 4 timese0
- Comparator
- shallow frequent irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“compared with shallow frequent irrigation,the irrigation quota and drainage quota under WCCI decreased by 6.7% to 22.9% and 21.9% to 100%,respectively;and the irrigation and drainage times under WCCI decrease by 1 to 4 times and 2 times”
Claim · model-written summary
WCCI decreased drainage times by 2 times versus shallow frequent irrigation for rice.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- drainage timese0
- Direction
- decreasee0
- Value
- 2 timese0
- Comparator
- shallow frequent irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“compared with shallow frequent irrigation,the irrigation quota and drainage quota under WCCI decreased by 6.7% to 22.9% and 21.9% to 100%,respectively;and the irrigation and drainage times under WCCI decrease by 1 to 4 times and 2 times”
Claim · model-written summary
Appropriately increased water-storage depth after rainfall did not reduce rice grain yield.
- Taxon
- riceOryza sativae0
- Treatment
- appropriately increasing the water-storage depth after rainfalle0
- Outcome
- grain yielde0
- Direction
- not reducede0
- Comparator
- current water-saving irrigation modele0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield of rice was not reduced by appropriately increasing the water-storage depth after rainfall while maintaining the lower irrigation quantity of the current water-saving irrigation model,but excessive water-storage depth after rainfall resulted in a small reduction of grain yield in three-year trials.”
Claim · model-written summary
Excessive water-storage depth after rainfall slightly reduced rice grain yield in three-year trials.
- Taxon
- riceOryza sativae0
- Treatment
- excessive water-storage depth after rainfalle0
- Outcome
- grain yielde0
- Direction
- reductione0
- Qualifier
- three-year trialse0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The grain yield of rice was not reduced by appropriately increasing the water-storage depth after rainfall while maintaining the lower irrigation quantity of the current water-saving irrigation model,but excessive water-storage depth after rainfall resulted in a small reduction of grain yield in three-year trials.”
Claim · model-written summary
The authors recommend WCCI for rainy regions in South China because of water and labor savings.
- Taxon
- riceOryza sativat0
- Treatment
- WCCIe0
- Outcome
- suitable for rainy regions in South Chinae0
- Setting
- South Chinae0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
t0“rice”
e0“The results suggest that WCCI has the advantages of water saving,drainage reduction,and labor saving,and it is suitable for rainy regions in South China.”
The same questions in other papers
rainfall · yield · Oryza sativa (rice)Positive and negative results
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