GLM plus N with or without P and K yielded maximum soil dehydrogenase activity at rice tillering.

potassium · soil: biology · Oryza sativa (rice)Positive and negative results

1 paper in the same direction as this claim · 8 in the opposite direction

This claim is about lacking the nutrient, so it counts the other way round here.

1. positive
   Balanced N, P and K application promoted microbial biomass growth and improved community composition.

   Studies on nutrient uptake of rice and characteristics of soil microorganisms in a long-term fertilization experiments for irrigated rice · 2005

   Opposite direction

2. positive
   Humate with NPK and zinc significantly improved soil dehydrogenase activity.

   Efficacy of Potassium Humate and Chemical Fertilizers on Yield and Nutrient Availability Patterns in Soil at Different Growth Stages of Rice · 2017

   Opposite direction

3. positive
   Dual culture of Azolla caroliniana with 50% recommended NPK fertilizer showed a clear increase in MBC of 220.46 μg./g.

   POTENTIALITY OF DIVERSE ORGANIC INPUTS WITH LOW CHEMICAL FERTILIZER ON MICROBIAL BIOMASS CARBON, SOIL ENZYMES AND CROP YIELD IN PADDY SOIL · 2012

   Opposite direction

4. positive
   Potassium decreased enzyme activity and cell-wall polysaccharide content.

   Effects of exogenous potassium on cell-wall polysaccharide contents of Fe-stressed rice in relation to their iron tolerance · 2010

   Opposite direction

5. positive
   Balanced NPK application promoted microbial biomass growth and community composition improvement.

   Studies on nutrient uptake of rice and characteristics of soil microorganisms in a long-term fertilization experiments for irrigated rice · 2005

   Opposite direction

6. positive
   Rice treatment yielded urease activity of 47.1 µg NH+ g-1 soil 24 h-1.

   Agronomic response, physiological and bio-chemical composition of transplanted rice influenced by nutrient management practices · 2023

   Opposite direction

7. positive
   MBPH decreased labile organic matter-degrading Proteobacteria.

   Mechanistic insights into mineral-based potassium humate regulating rhizosphere microenvironment and microbial community assembly in paddy soils along a Cadmium contamination gradient · 2026

   Opposite direction

8. positive
   Under moderate nitrogen supply, more basal potassium application improved enzyme activity in both cultivars.

   Effects of Potassium Management on Yield Formation and Nutrient Utilization in Japonica Rice Cultivars with Contrasting Nitrogen Efficiency Under a Simplified Nitrogen Regime · 2026

   Opposite direction

1 paper more in this group

phosphorus · soil: biology · Oryza sativa (rice)Positive and negative results

2 papers in the same direction as this claim · 13 in the opposite direction

This claim is about lacking the nutrient, so it counts the other way round here.

1. positive
   Balanced N, P and K application promoted microbial biomass growth and improved community composition.

   Studies on nutrient uptake of rice and characteristics of soil microorganisms in a long-term fertilization experiments for irrigated rice · 2005

   Opposite direction

2. positive
   Basal phosphorus increased antioxidant enzyme activities.

   Effect of Nutrient Application on Growth, Metabolic and Enzymatic Activities of Rice Seedlings During Flooding Stress and Subsequent Re‐Aeration · 2014

   Opposite direction

3. positive
   Mixed bacterial and fungal inoculants performed better for available P, phosphatase, plant P content, and yield.

   Metabolic characterization of phosphate solubilizing microorganisms and their role in improving soil phosphate solubility, yield of upland rice (Oryza sativa L.), and phosphorus fertilizers efficiency · 2022

   Opposite direction

4. positive
   Soil enzyme activity followed the positive trend with increasing Si and P.

   Crop Productivity, Grain Quality, Water Use Efficiency, and Soil Enzyme Activity as Influenced by Silicon and Phosphorus Application in Aerobic Rice (Oryza sativa) · 2020

   Opposite direction

5. positive
   The consortium gave the highest increase in soil microbial biomass carbon, 16.4% and 16.5%, over control.

   Rhizosphere mediated growth enhancement using phosphate solubilizing rhizobacteria and their tri-calcium phosphate solubilization activity under pot culture assays in Rice (Oryza sativa.) · 2021 · compared with control

   Opposite direction

6. positive
   Bio priming of rice seeds with the studied PSB significantly improved seed microbiome and rhizocolonization under FU soil conditions.

   Seed bio-priming with phosphate solubilizing bacteria strains to improve rice (Oryza sativa L. var. FARO 44) growth under ferruginous ultisol conditions · 2023

   Opposite direction

7. positive
   Under low phosphorus, rice antioxidant enzyme activities (SOD, POD and CAT) was higher.

   Root growth, malonyldialdehyde content and antioxidant enzyme activities in response to low phosphorus supply in rice (Oryza sativaL.) genotypes · 2014 · compared with Normal phosphorus–NP: 200 μM

   Opposite direction

8. positive
   Root-secreted acid phosphatase activity in both rice genotypes was higher under low P than sufficient P.

   [Difference in P utilization from organic phosphate between two rice genotypes and its relations with root-secreted acid phosphatase activity]. · 2009 · compared with sufficient P supply

   Opposite direction

7 papers more in this group

fertilization · soil: biology · Oryza sativa (rice)Positive and negative results

87 papers in the same direction as this claim · 10 in the opposite direction · 1 reporting no difference from an alternative

1. negative
   Soil nutrient deficiency and unbalanced fertilization negatively affected microbial diversity and biomass.

   Studies on nutrient uptake of rice and characteristics of soil microorganisms in a long-term fertilization experiments for irrigated rice · 2005

   Opposite direction

2. negative
   Chemical fertilizers reduced root microbial diversity and abundance of some beneficial taxa.

   Distinct Root Microbial Communities in Nature Farming Rice Harbor Bacterial Strains With Plant Growth-Promoting Traits · 2021

   Opposite direction

3. negative
   Chemical fertilizers produced poor soil microbial and crop indices.

   Long-term Effects of Inorganic Fertilizer and Compost Application on Rice Sustainability in Paddy Soil · 2013

   Opposite direction

4. negative
   Nitrogen fertilization reduced soil bacterial diversity and richness.

   NRT1.1B mediates rice plant growth and soil microbial diversity under different nitrogen conditions · 2024

   Opposite direction

5. negative
   Fertilization weakened the inoculation response of soil respiration, root biomass, and rhizosphere microbes.

   How Inoculation with Arbuscular Mycorrhizal Fungi Impact on Soil Respiration? · 2014

   Opposite direction

6. negative
   Soil nutrient deficiency and unbalanced fertilization negatively affected microbial diversity.

   Studies on nutrient uptake of rice and characteristics of soil microorganisms in a long-term fertilization experiments for irrigated rice · 2005

   Opposite direction

7. no effect
   Soil urease activity under N180P70K70, N240P70K770 and N180P100K70 fertilization was equal to the CK control.

   Response of Soil Enzymes to Different Amount N and P Fertilizers in Rice Ecosystems of Meadow Brown Soil · 2008 · compared with CK

   Opposite direction

8. negative
   Little or excessive nitrogen fertilizer application decreased root vigor and protection enzyme activity of rice dry seedbed seedlings.

   Effect of nitrogen application rate on morphological and physiological characters of rice dry seedbed seedlings · 2004

   Opposite direction

90 papers more in this group