Abstract
【Objective】 The objective of this study was to probe the effects of chemical and organic fertilizers on rice yield, soil organic matter and soil nutrients. 【Method】 Field investigation and soil sample analysis methods were adopted on a long-term experiment in Qiyang, Station, Hunan province, China. 【Result】 The combined use of chemical and organic fertilizers was an optimum way for high yield and improvement of soil fertility. Application of both chemical and organic fertilizers significantly increased soil organic matter, and application of organic fertilizers increased soil organic matter by 48% compared with the chemical fertilizer. Organic fertilizers made a great contribution to improvement of soil total nitrogen and hydrolysable nitrogen than chemical fertilizer N, but less contribution to soil total P and available P than that of chemical fertilizer phosphorus. The organic fertilizer increased soil total N by 30% and hydrolysable N by 16% while the chemical P fertilizer increased 30% more total P and 115% more available P than did the organic fertilizer. 【Conclusion】 Combined use of chemical fertilizer and manure is important for high yield of rice and improvement of soil fertility.
Abstract from the paper’s OpenAlex record, shown for indexing and research. Copyright remains with the authors or the publisher. 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
Combined use of chemical and organic fertilizers was an optimum way for high yield and improved soil fertility of rice.
- Taxon
- rice
Oryza sativae0 - Treatment
- combined use of chemical and organic fertilizerse1
- Outcome
- high yield and improvement of soil fertilitye1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e1“The combined use of chemical and organic fertilizers was an optimum way for high yield and improvement of soil fertility”
Claim · model-written summary
Application of both chemical and organic fertilizers significantly increased soil organic matter in the rice field experiment.
- Taxon
- riceOryza sativae0
- Treatment
- Application of both chemical and organic fertilizerse2
- Outcome
- soil organic mattere2
- Direction
- increasede2
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e2“Application of both chemical and organic fertilizers significantly increased soil organic matter”
Claim · model-written summary
Organic fertilizer application increased soil organic matter by 48% compared with chemical fertilizer.
- Taxon
- riceOryza sativae0
- Treatment
- application of organic fertilizerse3
- Outcome
- soil organic mattere3
- Direction
- increasede3
- Value
- 48%e3
- Comparator
- chemical fertilizere3
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e3“application of organic fertilizers increased soil organic matter by 48% compared with the chemical fertilizer”
Claim · model-written summary
Organic fertilizer increased soil total N by 30%.
- Taxon
- riceOryza sativae0
- Treatment
- organic fertilizere4
- Outcome
- soil total Ne4
- Direction
- increasede4
- Value
- 30%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e4“The organic fertilizer increased soil total N by 30% and hydrolysable N by 16%”
Claim · model-written summary
Organic fertilizer increased soil hydrolysable N by 16%.
- Taxon
- riceOryza sativae0
- Treatment
- organic fertilizere4
- Outcome
- hydrolysable Ne4
- Direction
- increasede4
- Value
- 16%e4
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e4“The organic fertilizer increased soil total N by 30% and hydrolysable N by 16%”
Claim · model-written summary
Organic fertilizers made a greater contribution to soil total and hydrolysable nitrogen than chemical N fertilizer.
- Taxon
- riceOryza sativae0
- Treatment
- Organic fertilizerse5
- Outcome
- soil total nitrogen and hydrolysable nitrogene5
- Direction
- made a great contribution to improvemente5
- Comparator
- chemical fertilizer Ne5
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e5“Organic fertilizers made a great contribution to improvement of soil total nitrogen and hydrolysable nitrogen than chemical fertilizer N”
Claim · model-written summary
Organic fertilizers contributed less to soil total P and available P than chemical phosphorus fertilizer.
- Taxon
- riceOryza sativae0
- Treatment
- Organic fertilizerse5
- Outcome
- soil total P and available Pe6
- Direction
- less contributione6
- Comparator
- chemical fertilizer phosphoruse6
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e5“Organic fertilizers made a great contribution to improvement of soil total nitrogen and hydrolysable nitrogen than chemical fertilizer N”
e6“but less contribution to soil total P and available P than that of chemical fertilizer phosphorus”
Claim · model-written summary
Chemical P fertilizer increased soil total P by 30% more than organic fertilizer.
- Taxon
- riceOryza sativae0
- Treatment
- chemical P fertilizere7
- Outcome
- total Pe7
- Direction
- increasede7
- Value
- 30% moree7
- Comparator
- organic fertilizere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e7“the chemical P fertilizer increased 30% more total P and 115% more available P than did the organic fertilizer”
Claim · model-written summary
Chemical P fertilizer increased soil available P by 115% more than organic fertilizer.
- Taxon
- riceOryza sativae0
- Treatment
- chemical P fertilizere7
- Outcome
- available Pe7
- Direction
- increasede7
- Value
- 115% moree7
- Comparator
- organic fertilizere7
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“probe the effects of chemical and organic fertilizers on rice yield”
e7“the chemical P fertilizer increased 30% more total P and 115% more available P than did the organic fertilizer”
The same questions in other papers
fertilization · soil: chemistry · Oryza sativa (rice)Positive and negative results
279 papers in the same direction as this paper · 23 in the opposite direction · 2 reporting no difference from an alternative
- no effect
- no effect
- negative
301 papers more in this group
See all 305 papers →fertilization · nutrient: content · Oryza sativa (rice)Positive and negative results
931 papers in the same direction as this paper · 56 in the opposite direction · 5 reporting no difference from an alternative
- negative
- positive
- negative
989 papers more in this group
See all 993 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.