Abstract
Fertilizer plays an important role in increasing rice yield. More than half of all fertilizer applied to the field is not taken up, resulting in environmental damage and substantial economic losses. To address these concerns, a low-cost, coated compound fertilizer named “Xiang Nong Da” (XND), requiring only a single basal application, was studied. A two-year field experiment was conducted to test the effects of XND application on rice yield and nitrogen fertilizer use efficiency. An ordinary uncoated compound fertilizer (UNCF), with 20% more nutrients and split application was selected as the control. The yield of XND-treated rice was only 3.1% lower than that of the control, an insignificant difference. There were no significant differences between N use efficiency indices of the two fertilizer treatments except for N partial factor productivity (PFPN). PFPN of XND treatment was 19.7%–23.2% higher than the control, a significant difference. This result indicates that a 20% decrease in N application rate is possible with XND without yield reduction and with savings in both labor and time.
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Claims 4
Claim · model-written summary
XND rice yield was 3.1% lower than control without a significant difference.
- Taxon
- rice
Oryza sativae0 - Treatment
- XND-treatede0
- Outcome
- yielde0
- Direction
- lowere0
- Value
- 3.1%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The yield of XND-treated rice was only 3.1% lower than that of the control, an insignificant difference.”
Claim · model-written summary
N use efficiency indices except PFPN did not differ significantly between fertilizer treatments.
- Taxon
- riceOryza sativat0
- Treatment
- two fertilizer treatmentse0
- Outcome
- N use efficiency indicese0
- Direction
- no significant differencese0
- Qualifier
- except for N partial factor productivity (PFPN)e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“There were no significant differences between N use efficiency indices of the two fertilizer treatments except for N partial factor productivity (PFPN).”
t0“rice”
Claim · model-written summary
XND increased PFPN by 19.7%–23.2% relative to control.
- Taxon
- riceOryza sativat0
- Treatment
- XND treatmente0
- Outcome
- PFPNe0
- Direction
- highere0
- Value
- 19.7%–23.2%e0
- Comparator
- controle0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“PFPN of XND treatment was 19.7%–23.2% higher than the control, a significant difference.”
t0“rice”
Claim · model-written summary
Authors conclude XND permits a 20% lower N rate without yield reduction and saves labor and time.
- Taxon
- riceOryza sativat0
- Treatment
- XNDe0
- Outcome
- 20% decrease in N application ratee0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“a 20% decrease in N application rate is possible with XND without yield reduction and with savings in both labor and time”
t0“rice”
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fertilization · nutrient: efficiency · Oryza sativa (rice)Positive and negative results
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