Nitrogen application increased annual vine biomass by 75% in the second season.

climate site · growth · VitisPositive and negative results

2 papers in the same direction as this claim · 1 in the opposite direction

1. negative
   Later grafting produced less scion shoot growth.

   Grapevine Propagation I: A Comparison of Cleft and Notch Grafting; and, Bark Grafting at High and Low levels · 1964

   Opposite direction

2. positive
   Combined climate changes and increasing CO2 might increase total vine dry mass, depending on variety and scenario.

   THE COMBINED EFFECTS OF CLIMATE CHANGES AND INCREASES IN ATMOSPHERIC CO2 CONCENTRATION ON THE POTENTIAL GROWTH OF THREE GRAPEVINE VARIETIES · 1995

   Same direction

3. positive
   Rooting rate was 100% in perlite, pumice and river sand, higher than in peat.

   PROPAGATION PERFORMANCES OF GRAPEVINE WITH CUTTINGS IN DIFFERENT ROOTING MEDIA · 2025 · compared with peat environment

   Same direction

nitrogen · growth · VitisPositive and negative results

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

1. positive
   High soil nitrogen increased leaf area through lateral shoot growth.

   Soil nitrogen utilisation for growth and gas exchange by grapevines in response to nitrogen supply and rootstock · 2001

   Same directionCited by this paper

2. positive
   Nitrogen deficiency inhibited grapevine growth in an intensity-dependent manner.

   Nitrogen supply controls vegetative growth, biomass and nitrogen allocation for grapevine (cv. Shiraz) grown in pots · 2014

   Same directionCites this paperAbout lacking this nutrient, so it counts the other way round

3. no effect
   Shoot growth did not differ significantly under short-term nitrogen deficiency.

   A New Strategy to Improve Vineyard Resilience: Grapevine Morphological Adaptation to Short-Term Nitrogen Deficiency · 2022

   Opposite directionAbout lacking this nutrient, so it counts the other way round

4. no effect
   Increasing soil-applied nitrogen up to 134.4 kg/ha had no effect on growth or cropping of Concord.

   Root Pruning Has Little Effect on Seyval, Catawba or Concord Grapevines · 2001

   Opposite direction

5. negative
   Vine growth in the ammonium series decreased at pH 4 and 5 compared with pH 6, 7 and 8.

   Nutritional and physiological studies on grapevine. IV · 1961 · compared with pH 6, 7, and 8

   Opposite direction

6. no effect
   Grape pollen stored in liquid nitrogen showed no significant decrease in germination after 64 weeks.

   Cryogenic preservation of grape (Vitis vinifera L.) pollen · 2015 · compared with pollen stored under laboratory conditions

   No difference from an alternative

7. positive
   High nitrogen stimulated shoot growth and leaf area expansion.

   Interaction of Nitrogen Availability During Bloom and Light Intensity During Veraison. I. Effects on Grapevine Growth, Fruit Development, and Ripening · 1998

   Same direction

8. positive
   Low N before veraison favoured fruit development at the expense of root growth.

   Carbon and nitrogen partitioning in either fruiting or non-fruiting grapevines: effects of nitrogen limitation before and after veraison · 2002

   Same directionAbout lacking this nutrient, so it counts the other way round

12 papers more in this group

fertilization · growth · VitisPositive and negative results

42 papers in the same direction as this claim · 7 in the opposite direction · 1 reporting no difference from an alternative

1. negative
   Increasing chloride in the nutrient solution lowered shoot-length increments and dry-matter accumulation in all six grapevine cultivars.

   Response of Six Grapevine Cultivars to a Range of Chloride Concentrations · 1973

   Opposite direction

2. no effect
   Spur pruning and high concentration fertilizer did not inhibit transmitting tissue development or pollen tube growth.

   Effect of shoot vigor on the development of transmitting tissue and pollen tube growth in pistils of tetraploid grape, cv. Pione · 2015

   Opposite direction

3. no effect
   Potassium fertilization sources and potassium with iron in the main fertilization did not significantly change leaf zinc

   GRAPEVINE FE-CHLOROSIS ON PODUNAVLJE VINEGROWING AREA · 2012

   Opposite direction

4. no effect
   Organic fertilizer did not notably increase primary branches.

   Effect of Adding Organic Fertilizer (Humus) Perl Humus on some Vegetative Growth Characteristics of Grape Cultivars Shatur Al-anz and Olivette Noire (Vitis Vinifera L.) · 2023

   Opposite direction

5. negative
   Excess NPK compost with oil residue inhibited reproductive growth and grape fruit enlargement.

   Effect of Different Fertilization on Growth and Quality of Grapevine (Vitis vinifera cv. Red Globe) Under Protected Cultivation · 2013

   Opposite direction

6. no effect
   Basal fertilizer had no statistically significant effect on plant growth in table grapes.

   Effect of Using Basal Fertilizer 15-15-15 on Leaf Chlorophyll a Fluorescence, Plant Growth and Fruit Yield of Table Grapes Grown under the Mediterranean Climate Conditions of the Northeast of Morocco · 2023 · compared with control (C)

   Opposite direction

7. negative
   Full optimal dose fertilization decreased diameter of the first three main roots.

   The effect of nitrogen on the growth and development of grafted cuttings from the nursery · 2024

   Opposite direction

8. no effect
   Base fertilizer applied in spring and autumn gave no significant difference in grape nutritional growth.

   Effect of Base Fertilizer Applied in Different Periods on Growth and Yield of Grape · 2004 · compared with autumn

   No difference from an alternative

42 papers more in this group