The 2% zinc spray plus fertilizer had the highest starch content, 27.83%.

zinc atom · quality: sugar starch · Manihot esculenta (cassava)Results agree

2 papers in the same direction as this claim

1. positive
   Zn+Mg+S foliar fertilization on HB 80 gave the highest root starch content (29.33%).

   The Combination Effects of Zinc, Magnesium, Sulphur Foliar Fertilizer Management on Cassava Growth and Yield Grown on Map Bon, Coarse-loamy Variant Soil · 2013

   Same direction

2. positive
   Mg with Zn gave significantly the highest tuber starch.

   Influence of Nutrients and Nutrient Use Efficient Genotypes on Tuber and Leaf Cyanogen and Tuber Starch in Cassava · 2019

   Same direction

fertilization · quality: sugar starch · Manihot esculenta (cassava)Positive and negative results

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

1. negative
   Magnesium fertilizer decreased starch content in SC5 storage roots.

   Effects of Calcium and Magnesium Fertilization on Antioxidant Activities during Cassava Postharvest Physiological Deterioration · 2018

   Opposite direction

2. no effect
   Fertilization did not differ from control in root starch percentage or root number.

   Effects of Chicken Manure and Chemical Fertilizer Management on Yield of Cassava Grown on Map Bon, Coarse-Loamy Variant Soil · 2012 · compared with control

   Opposite direction

3. no effect
   N, P and K fertilizer effects on cassava starch and dry matter content were not significant.

   Effects of N, P, K Combined Application on the Yield and Quality of Cassava · 2013

   Opposite direction

4. no effect
   The interaction of burnt rice husk and potassium fertilizer had no clear effect on starch yield.

   Potential use of burnt rice husk to substitute for potassium applied for cassava grown in a low K-reserve soil · 2024

   Opposite direction

5. positive
   Nutrient-balance fertigation increased cassava starch content relative to recommended fertigation.

   Fertigation based on a nutrient balance model for cassava production in two different textured soils · 2020 · compared with fertigation based on Department of Agriculture recommendations (F-DOA)

   Same direction

6. positive
   Soil-test management raised biomass, dry matter and tuber starch content.

   Soil test based nutrient management for short-duration cassava (Manihot esculenta): Analysis of growth, biomass, yield, quality, nutrient uptake and soil nutrient status · 2001

   Same direction

7. positive
   Higher P fertilization increased starch yield versus zero P.

   Cassava Response to Phosphorus Fertilizer in Warin Soil Series Amended with Cassava Tails and Stalk-Bentonite Mixture · 2023 · compared with zero-P fertilization

   Same direction

8. positive
   Zn+Mg+S foliar fertilization on HB 80 gave the highest root starch content (29.33%).

   The Combination Effects of Zinc, Magnesium, Sulphur Foliar Fertilizer Management on Cassava Growth and Yield Grown on Map Bon, Coarse-loamy Variant Soil · 2013

   Same direction

17 papers more in this group

application · quality: sugar starch · Manihot esculenta (cassava)Results agree

5 papers in the same direction as this claim

1. positive
   Zn+Mg+S foliar fertilization on HB 80 gave the highest root starch content (29.33%).

   The Combination Effects of Zinc, Magnesium, Sulphur Foliar Fertilizer Management on Cassava Growth and Yield Grown on Map Bon, Coarse-loamy Variant Soil · 2013

   Same direction

2. positive
   In Nanzhi 199, spray plus irrigation CPPU increased starch content by 36.49% compared with control.

   Effects of CPPU and paclobutrazol on yield increase in cassava. · 2011 · compared with control

   Same direction

3. positive
   Soaking water increased starch yield 10.0% over CK.

   The Drought Resistance Effect of Mulching Film,Soaking Water and Sealing Wax for Cassava Cutting · 2014 · compared with the check CK

   Same direction

4. positive
   Homobrassinolide soaking promoted starch accumulating.

   Studies on the effects of increasing cassava yield by soaking the seed-stems with homobrassinolide · 2001

   Same direction

5. positive
   Foliar agents with mineral fertilizer and humic acid increased tuber dry matter, starch, and total sugar versus control.

   The Influence of Applying some Stimulating Agents and Humic Acid on Productivity and Quality of Cassava Plants under Loamy Sandy Soil · 2019 · compared with control

   Same direction