Abstract
Rainfed guava cultivation often suffers from yield limitations, compromised fruit quality, and declining soil fertility, primarily due to excessive reliance on chemical fertilizers and suboptimal water management. Sustainable nutrient and water management strategies are therefore essential to enhance guava productivity while maintaining long-term soil health under rainfed conditions. The objective of the study was to evaluate the integrated effects of integrated nutrient management (INM), fertigation, and cover cropping on guava yield, fruit quality, and soil health under rainfed conditions. A field experiment was conducted using 13 different nutrient and irrigation management treatments, combining various levels of mineral fertilizers such as recommended dose of fertilizers (RDF), organic manures comprising of farm yard manure (FYM) and moong residue, and fertigation with irrigation regimes. The results revealed that integration of fertigation, FYM, and optimized irrigation significantly enhanced guava yield by 47.1% over the recommended application of mineral fertilizers and improved fruit quality. The adoption of INM improved soil health by increasing microbial biomass carbon, enhancing moisture retention, and increasing nutrient availability. The INM combined with deficit irrigation; that is, 70% of the evaporation replenishment (ER) significantly enhanced soil organic carbon (SOC) content and labile carbon fractions compared to 100% RDF. The carbon management index (CMI) in INM-based treatment with deficit irrigation was 28.12% higher, than the RDF along with conventional irrigation. Principal component analysis (PCA) identified microbial biomass carbon, DTPA-Zn, and soil pH as key indicators of soil quality, with the adoption of INM practices enhancing the soil quality index by 18.72% compared to RDF treatment. The findings of the study will help in sustainable guava production and environmental sustainability.
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Claims 10
Claim · model-written summary
Fertigation, FYM and optimized irrigation increased guava yield by 47.1% over recommended mineral fertilizer.
- Taxon
- guava
Psidium guajavae0 - Treatment
- integration of fertigation, FYM, and optimized irrigatione0
- Outcome
- guava yielde0
- Direction
- enhancede0
- Value
- 47.1%e0
- Comparator
- recommended application of mineral fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“integration of fertigation, FYM, and optimized irrigation significantly enhanced guava yield by 47.1% over the recommended application of mineral fertilizers”
Claim · model-written summary
Fertigation, FYM and optimized irrigation improved guava fruit quality.
- Taxon
- guavaPsidium guajavae0
- Treatment
- integration of fertigation, FYM, and optimized irrigatione0
- Outcome
- fruit qualitye0
- Direction
- improvede0
- Comparator
- recommended application of mineral fertilizerse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“integration of fertigation, FYM, and optimized irrigation significantly enhanced guava yield by 47.1% over the recommended application of mineral fertilizers and improved fruit quality”
Claim · model-written summary
Integrated nutrient management increased soil microbial biomass carbon.
- Taxon
- guavaPsidium guajavat0
- Treatment
- INMe0
- Outcome
- microbial biomass carbone0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adoption of INM improved soil health by increasing microbial biomass carbon, enhancing moisture retention, and increasing nutrient availability”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
Claim · model-written summary
Integrated nutrient management enhanced soil moisture retention.
- Taxon
- guavaPsidium guajavat0
- Treatment
- INMe0
- Outcome
- moisture retentione0
- Direction
- enhancinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adoption of INM improved soil health by increasing microbial biomass carbon, enhancing moisture retention, and increasing nutrient availability”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
Claim · model-written summary
Integrated nutrient management increased soil nutrient availability.
- Taxon
- guavaPsidium guajavat0
- Treatment
- INMe0
- Outcome
- nutrient availabilitye0
- Direction
- increasinge0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The adoption of INM improved soil health by increasing microbial biomass carbon, enhancing moisture retention, and increasing nutrient availability”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
Claim · model-written summary
INM with 70% evaporation replenishment increased soil organic carbon compared with 100% RDF.
- Taxon
- guavaPsidium guajavat0
- Treatment
- INM combined with deficit irrigation; that is, 70% of the evaporation replenishment (ER)e0
- Outcome
- soil organic carbon (SOC) contente0
- Direction
- enhancede0
- Comparator
- 100% RDFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“INM combined with deficit irrigation; that is, 70% of the evaporation replenishment (ER) significantly enhanced soil organic carbon (SOC) content and labile carbon fractions compared to 100% RDF”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
Claim · model-written summary
INM with 70% evaporation replenishment increased labile carbon fractions compared with 100% RDF.
- Taxon
- guavaPsidium guajavat0
- Treatment
- INM combined with deficit irrigation; that is, 70% of the evaporation replenishment (ER)e0
- Outcome
- labile carbon fractionse0
- Direction
- enhancede0
- Comparator
- 100% RDFe0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“INM combined with deficit irrigation; that is, 70% of the evaporation replenishment (ER) significantly enhanced soil organic carbon (SOC) content and labile carbon fractions compared to 100% RDF”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
Claim · model-written summary
The carbon management index was 28.12% higher under INM and deficit irrigation than under RDF and conventional irrigation.
- Taxon
- guavaPsidium guajavat0
- Treatment
- INM-based treatment with deficit irrigatione0
- Outcome
- carbon management index (CMI)e0
- Direction
- highere0
- Value
- 28.12%e0
- Comparator
- RDF along with conventional irrigatione0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“The carbon management index (CMI) in INM-based treatment with deficit irrigation was 28.12% higher, than the RDF along with conventional irrigation”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
Claim · model-written summary
PCA identified microbial biomass carbon, DTPA-Zn and soil pH as key soil-quality indicators.
- Taxon
- guavaPsidium guajavat0
- Outcome
- key indicators of soil qualitye0
Not reportedComparatorValue
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Principal component analysis (PCA) identified microbial biomass carbon, DTPA-Zn, and soil pH as key indicators of soil quality”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
Claim · model-written summary
INM increased the soil quality index by 18.72% compared with RDF.
- Taxon
- guavaPsidium guajavat0
- Treatment
- INM practicese0
- Outcome
- soil quality indexe0
- Direction
- enhancinge0
- Value
- 18.72%e0
- Comparator
- RDF treatmente0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the adoption of INM practices enhancing the soil quality index by 18.72% compared to RDF treatment”
t0“Long-term nutrient–water management strategies for improved productivity and soil health in rainfed guava cultivation”
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8 of 11 groups shown: named compounds and organisms first, then groups whose results differ (checked claim by claim), then those with positive and negative results, then the smaller groups.
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.