Abstract
With the increasing scarcity of water resources and growing population, the dual goal of saving irrigation water and increasing grain yield has become a major challenge in rice production around the world. A two-year lysimetric experiment was conducted to assess the effects of zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation) on grain yield, water use and total nitrogen uptake of rice. Zeolite addition to paddy field significantly increased grain yield, total N uptake, and water use efficiency (WUE), despite a negligible effect on amount of irrigation water used. Compared with W0, the separate use of W1 and W2 each considerably decreased irrigation water. However, W2-grown rice showed a significant decline in grain yield. In contrast, W1 showed comparable grain yield with W0, and achieved the highest WUE. Correlation analysis revealed that grain yield was significantly and positively correlated with effective panicles, spikelets per panicle, water consumption, and total N uptake. It is concluded that the combination of zeolite application at the rate of 15 t/hm2 and energy-controlled irrigation could be recommended to benefit farmers by reducing irrigation water while improving grain yield on a clay loam soil. Keywords: zeolite, alternate wetting and drying irrigation, rice, yield, water use efficiency DOI: 10.25165/j.ijabe.20181101.3064 Citation: Zheng J L, Chen T T, Xia G M, Chen W, Liu G Y, Chi D C. Effects of zeolite application on grain yield, water use and nitrogen uptake of rice under alternate wetting and drying irrigation. Int J Agric & Biol Eng, 2018; 11(1): 157–164.
Abstract from the paper’s OpenAlex record; open copy licensed cc-by. Read at the source ↗
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 9
Claim · model-written summary
Zeolite addition significantly increased rice grain yield, total N uptake and water use efficiency relative to no zeolite.
- Taxon
- rice
Oryza sativae3 - Treatment
- Zeolite addition to paddy fielde2
- Outcome
- grain yield, total N uptake, and water use efficiency (WUE)e2
- Direction
- increasede2
- Comparator
- Z0: 0e1
- Setting
- lysimetric experimente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“A two-year lysimetric experiment was conducted”
e1“zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation)”
e2“Zeolite addition to paddy field significantly increased grain yield, total N uptake, and water use efficiency (WUE), despite a negligible effect on amount of irrigation water used”
e3“total nitrogen uptake of rice”
Claim · model-written summary
Zeolite addition had a negligible effect on the amount of irrigation water used.
- Taxon
- riceOryza sativae3
- Treatment
- Zeolite addition to paddy fielde2
- Outcome
- amount of irrigation water usede2
- Direction
- no_changeinferrede2
- Qualifier
- negligible effecte2
- Comparator
- Z0: 0e1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation)”
e2“Zeolite addition to paddy field significantly increased grain yield, total N uptake, and water use efficiency (WUE), despite a negligible effect on amount of irrigation water used”
e3“total nitrogen uptake of rice”
Claim · model-written summary
Energy-controlled irrigation (W1) decreased irrigation water use compared with continuous flooding (W0).
- Taxon
- riceOryza sativae3
- Treatment
- energy-controlled irrigatione1
- Outcome
- irrigation watere4
- Direction
- decreasede4
- Comparator
- continuous flooding irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation)”
e3“total nitrogen uptake of rice”
e4“Compared with W0, the separate use of W1 and W2 each considerably decreased irrigation water”
Claim · model-written summary
Alternate wetting and drying irrigation (W2) decreased irrigation water use compared with continuous flooding (W0).
- Taxon
- riceOryza sativae3
- Treatment
- alternate wetting and drying irrigatione1
- Outcome
- irrigation watere4
- Direction
- decreasede4
- Comparator
- continuous flooding irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation)”
e3“total nitrogen uptake of rice”
e4“Compared with W0, the separate use of W1 and W2 each considerably decreased irrigation water”
Claim · model-written summary
Alternate wetting and drying irrigation (W2) significantly decreased rice grain yield.
- Taxon
- riceOryza sativae5
- Treatment
- alternate wetting and drying irrigatione1
- Outcome
- grain yielde5
- Direction
- declinee5
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation)”
e5“However, W2-grown rice showed a significant decline in grain yield”
Claim · model-written summary
Energy-controlled irrigation (W1) gave grain yield comparable to continuous flooding (W0).
- Taxon
- riceOryza sativae3
- Treatment
- energy-controlled irrigatione1
- Outcome
- grain yielde6
- Direction
- no_changeinferrede6
- Qualifier
- comparablee6
- Comparator
- continuous flooding irrigatione1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation)”
e3“total nitrogen uptake of rice”
e6“In contrast, W1 showed comparable grain yield with W0, and achieved the highest WUE”
Claim · model-written summary
Energy-controlled irrigation (W1) achieved the highest water use efficiency among the water regimes.
- Taxon
- riceOryza sativae3
- Treatment
- energy-controlled irrigatione1
- Outcome
- WUEe6
- Direction
- higheste6
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“zeolite application (Z0: 0 and Z1: 15 t/hm2) and water regimes (W0: continuous flooding irrigation, W1: energy-controlled irrigation, W2: alternate wetting and drying irrigation)”
e3“total nitrogen uptake of rice”
e6“In contrast, W1 showed comparable grain yield with W0, and achieved the highest WUE”
Claim · model-written summary
Grain yield was significantly and positively correlated with effective panicles and spikelets per panicle.
- Taxon
- riceOryza sativae3
- Organ / stage
- effective panicles, spikelets per paniclee7
- Outcome
- grain yielde7
- Direction
- positively correlatede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“total nitrogen uptake of rice”
e7“Correlation analysis revealed that grain yield was significantly and positively correlated with effective panicles, spikelets per panicle, water consumption, and total N uptake”
Claim · model-written summary
Grain yield was significantly and positively correlated with water consumption and total N uptake.
- Taxon
- riceOryza sativae3
- Treatment
- water consumptione7
- Compound
- total N uptakee7
- Outcome
- grain yielde7
- Direction
- positively correlatede7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e3“total nitrogen uptake of rice”
e7“Correlation analysis revealed that grain yield was significantly and positively correlated with effective panicles, spikelets per panicle, water consumption, and total N uptake”
The same questions in other papers
processing · physiology: water · Oryza sativa (rice)Positive and negative results
33 papers in the same direction as this paper · 1 in the opposite direction
- no effect
- positive
- positive
31 papers more in this group
See all 35 papers →processing · yield · Oryza sativa (rice)Positive and negative results
25 papers in the same direction as this paper · 88 in the opposite direction
- positive
- positive
- positive
110 papers more in this group
See all 114 papers →irrigation · physiology: water · Oryza sativa (rice)Positive and negative results
349 papers in the same direction as this paper · 25 in the opposite direction · 5 reporting no difference from an alternative
- positive
- positive
- negative
376 papers more in this group
See all 380 papers →irrigation · yield · Oryza sativa (rice)Positive and negative results
264 papers in the same direction as this paper · 906 in the opposite direction
- positive
- positive
- positive
1,167 papers more in this group
See all 1,171 papers →other · physiology: water · Oryza sativa (rice)Results agree
9 papers in the same direction as this paper
- positive
- positive
- positive
6 papers more in this group
See all 10 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.