The specified combination gave the highest soil carbon and nutrient concentrations.

phosphorus · nutrient: content · VitisPositive and negative results

2 papers in the same direction as this claim · 3 in the opposite direction · 1 reporting no difference from an alternative

1. no effect
   Uptake of P, K and Mg by cover crops did not reduce soil availability of those nutrients.

   Soil Nutrient Availability under Cover Crops: Effects on Vines, Must, and Wine in a Tempranillo Vineyard · 2015

   Opposite direction

2. no effect
   P supply did not affect root P concentrations in grapevine.

   Phosphorus acquisition efficiency and phosphorus remobilization mediate genotype-specific differences in shoot phosphorus content in grapevine · 2018

   Opposite direction

3. no effect
   Neither phosphate nor phosphite significantly affected P concentrations or root colonization at the commercial vineyard.

   Foliar Sprays Containing Phosphorus (P) Have Minimal Impact on ‘Pinot noir’ Growth and P Status, Mycorrhizal Colonization, and Fruit Quality · 2010

   Opposite direction

4. no effect
   Leaf P concentration did not differ among the P application modes in Pinot Noir grapevines.

   Strategies to Increase the Phosphorus Content in the Soil Profile of Vineyards Grown in Subtropical Climates · 2024 · compared with P application modes

   No difference from an alternative

5. positive
   Phosphorus aided nitrogen and potassium absorption.

   Study on Fertilizer Effect on Grape in "3414" Test · 2011

   Same direction

6. positive
   Fertilization at 20 to 40 cm significantly increased leaf nitrogen content.

   Influence of fertilization depth on NPK content in leaves,yield and fruit quality of grapevine · 2007

   Same direction

inoculation · nutrient: content · VitisPositive and negative results

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

1. no effect
   Applied biofertilizers had no effect on leaf nutrient concentration of grapevine.

   Effects of Foliar Biofertilizer Sprays on Nutrient Uptake, Yield, and Quality Parameters of Blaufrankish (Vitis viniferaL.) Grapes · 2014

   Opposite direction

2. negative
   Nematode inoculation reduced zinc uptake in grape petioles.

   Individual and Combined Effects of Pratylenchus Vulnus and Xiphinema Index on Potassium and Zinc Levels in Vitis Vinifera `Thompson Seedless' · 1976

   Opposite direction

3. positive
   PGPR inoculation increased nitrogen and phosphorus levels in soil and leaves.

   1-Aminocyclopropane-1-Carboxylate Deaminase-Producing Plant Growth-Promoting Rhizobacteria Improve Drought Stress Tolerance in Grapevine (Vitis vinifera L.) · 2021

   Same direction

4. positive
   Biofertilizers increased nitrogen, zinc and iron concentrations in grapevine leaves.

   Effects of Root Plant Growth Promoting Rhizobacteria Inoculations on the Growth and Nutrient Content of Grapevine · 2018

   Same direction

5. positive
   BFP2 increased available phosphorus by 12.6% relative to CK.

   Rs‐198 Liquid Biofertilizers Affect Microbial Community Diversity and Enzyme Activities and Promote Vitis vinifera L. Growth · 2020 · compared with CK treatment

   Same direction

6. positive
   The compost, natural rock, bacterial and mineral NPK mix enhanced leaf nutrient content.

   Effect of compost and natural rocks as partial substitutes for NPK mineral fertilizers on yield and fruit quality of ‘Flame’ seedless grapevine grown in two different locations of Egypt · 2019

   Same direction

7. positive
   Nitrogen and biofertilizer treatments significantly increased leaf-petiole N, P and K in both cultivars.

   Effect of Biofertilizers as a Partial Substitute for Nitrogen Fertilzier on Vegetative Growth, Yield, Fruit Quality and Leaf Mineral Content of Two Seedless Grape Cultivars II: Fruit Quality and Leaf Mineral Content · 2011 · compared with the control

   Same direction

8. positive
   Consortium and reduced fertilizer enhanced petiole nutrients, leaf chlorophyll and cane carbohydrates.

   A Consortium of Soil Bacteria Mediates the Partial Replacement of Mineral Fertilizer for Sustainable Grapevine Cultivation in Sandy Soil · 2023

   Same direction

3 papers more in this group

fertilization · nutrient: content · VitisPositive and negative results

42 papers in the same direction as this claim · 4 in the opposite direction

1. positive
   Organic material applications significantly increased macronutrient uptake by grapevine leaves.

   Effect of different organic manure applications on grapevine nutrient values · 2008

   Same directionCited by this paper

2. no effect
   Fertilization left fruit juice total nitrogen unchanged in both cultivars.

   Influence of Timing of Nitrogen Fertilizer Application on Grapevines in the San Joaquin Valley · 1991

   Opposite direction

3. no effect
   Soil magnesium fertilizer did not effectively raise grape leaf magnesium concentration.

   A comparison of three methods of magnesium application to grapes. · 2008

   Opposite direction

4. no effect
   Fertilizer applications did not differ significantly in leaf N, P, Mn, and Zn content.

   The Effect of Microbial Fertilizer Applications on Grape Yield, Quality and Mineral Nutrition of Some Early Table Grape Varieties · 2019 · compared with control (no fertilizer)

   Opposite direction

5. no effect
   Summer nitrogen fertigation did not significantly alter vine nitrogen concentration.

   Foliar Urea Application in the Fall Affects Both Nitrogen and Carbon Storage in Young `Concord' Grapevines Grown under a Wide Range of Nitrogen Supply · 2004

   Opposite direction

6. positive
   Phosphorus fertilizer increased leaf phosphorus and magnesium concentrations above critical levels.

   A novel interaction of magnesium translocation with the supply of phosphorus to roots of grapevine (Vitis viniferaL.)^* · 1990

   Same direction

7. positive
   Applied manure increased grape petiole nitrate nitrogen, phosphorus and potassium contents over the control.

   Application of Poultry Manure Influences Thompson Seedless Grape Production and Soil Properties · 1988 · compared with the control

   Same direction

8. positive
   Coated Fe EDTA increased iron uptake in leaves and shoots.

   Effect of slow release iron fertilizers on chlorosis in grape · 1992

   Same direction

38 papers more in this group