Abstract
Integrated nutrient management (INM) is the use of available organic resources (manure, crop residues, biochar etc.) together with inorganic fertilisers to optimise crop nutrition. In low fertility sands, INM needs to consider the balanced supply of all limiting nutrients, not just nitrogen and phosphorus. Three field experiments were conducted on typical sands in the south-central coastal (SCC) region of Vietnam on annual and perennial crops to assess the value of applying available organic resources (manure, biochar) with inorganic fertilisers (including nitrogen, phosphorus and potassium (NPK), sulfur (S) and micronutrients) to optimise crop nutrition. Peanut responded positively to addition of S and micronutrients in addition to NPK. However, application of organic resources (manure, biochar) in combination with inorganic fertilisers further increased peanut yield significantly. Application of biochar increased mango productivity by 16%. By contrast, in cashew, there was limited benefit from increased rate of inorganic fertiliser, with or without biochar, possibly because of micronutrient deficiencies that were not treated with the fertiliser applied. Therefore, balanced rates of nutrients as inorganic fertilisers are required to achieve optimal productivity and nutrient use efficiency on sands. The integrated use of manure or biochar with balanced inorganic fertilisers was most effective in increasing peanut yield and significantly increased profit compared with either organic amendments or inorganic fertiliser alone.
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Claims 8
Claim · model-written summary
Adding sulfur and micronutrients to NPK benefited peanut.
- Taxon
- Peanut
Arachis hypogaeae0 - Treatment
- addition of S and micronutrientse0
- Outcome
- Peanut responded positivelye0
- Direction
- positivelye0
- Comparator
- NPKe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Peanut responded positively to addition of S and micronutrients in addition to NPK.”
Claim · model-written summary
Combining manure with inorganic fertilizer significantly increased peanut yield.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- manuree0
- Outcome
- peanut yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of organic resources (manure, biochar) in combination with inorganic fertilisers further increased peanut yield significantly.”
Claim · model-written summary
Combining biochar with inorganic fertilizer significantly increased peanut yield.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- biochare0
- Outcome
- peanut yielde0
- Direction
- increasede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“application of organic resources (manure, biochar) in combination with inorganic fertilisers further increased peanut yield significantly.”
Claim · model-written summary
Biochar increased mango productivity by 16%.
- Taxon
- mango
_from_India.jpg?width=60)
Mangifera indicae0 - Treatment
- biochare0
- Outcome
- mango productivitye0
- Direction
- increasede0
- Value
- 16%e0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
_from_India.jpg?width=500)
Verbatim
e0“Application of biochar increased mango productivity by 16%.”
Claim · model-written summary
Increasing inorganic fertilizer rates gave limited benefit in cashew.
- Taxon
- cashew
Anacardium occidentalee0 - Treatment
- increased rate of inorganic fertilisere0
- Outcome
- limited benefite0
Not reportedComparatorDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“in cashew, there was limited benefit from increased rate of inorganic fertiliser, with or without biochar”
Claim · model-written summary
Integrated manure and balanced inorganic fertilizer was most effective at increasing peanut yield.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- manuree0
- Outcome
- peanut yielde0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The integrated use of manure or biochar with balanced inorganic fertilisers was most effective in increasing peanut yield”
Claim · model-written summary
Integrated biochar and balanced inorganic fertilizer was most effective at increasing peanut yield.
- Taxon
- peanutArachis hypogaeae0
- Treatment
- biochare0
- Outcome
- peanut yielde0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The integrated use of manure or biochar with balanced inorganic fertilisers was most effective in increasing peanut yield”
Claim · model-written summary
Integrated organic and inorganic fertilizers significantly increased profit over either alone.
- Taxon
- PeanutArachis hypogaeae1
- Outcome
- profite0
- Direction
- increasede0
- Comparator
- either organic amendments or inorganic fertiliser alonee0
Not reportedTreatment
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“significantly increased profit compared with either organic amendments or inorganic fertiliser alone.”
e1“Peanut responded positively to addition of S and micronutrients in addition to NPK.”
The same questions in other papers
biochar · yield · Arachis hypogaea (peanut)Positive and negative results
28 papers in the same direction as this paper · 3 in the opposite direction
- no effect
- no effect
- no effect
28 papers more in this group
See all 32 papers →fertilization · yield · Arachis hypogaea (peanut)Positive and negative results
634 papers in the same direction as this paper · 44 in the opposite direction · 4 reporting no difference from an alternative
- no effect
- negative
- no effect
679 papers more in this group
See all 683 papers →micronutrient · organism · Arachis hypogaea (peanut)Results agree
1 paper in the same direction as this paper
- positive
biochar · yield · Mangifera indica (mango)Results agree
2 papers in the same direction as this paper
- positive
- positive
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.