Urea, DAP and KCl maximized Jeldu yield at 23.9 t/ha in limed soil.

potassium chloride · yield · Solanum tuberosum (potato)Results differ

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

1. no effect
   Potassium source did not significantly affect potato tuber yield.

   Potato plants (Solanum tuberosum L.) are chloride‐sensitive: Is this dogma valid? · 2017

   Opposite direction

2. negative
   Muriate of potash at 2 cwt. per acre significantly reduced potato yield.

   WHITE CLOVER TRIAL · 1958

   Opposite direction

3. positive
   KCl raised total tuber yield by 9.0% relative to potassium sulfate.

   Comparative study of potassium rates and sources on potato yield and quality in Florida · 2025 · compared with K 2 SO 4

   Same direction

4. positive
   The stated fertilizer combination produced the highest potato yield, 13 873.5 kg/hm2.

   3414+1 Fertilizer Efficiency Experiment for Potato · 2011

   Same direction

5. positive
   Plant height,base diameter,stolon number and yield per plant were increased by 6.32%,18.28%,13.75%,and 29.45%,respectively,when applying 0.7g KCl/seedling.

   Effect of potassium chloride on drought resistance of potato seedlings · 2014

   Same direction

nitrogen · yield · Solanum tuberosum (potato)Results differ

108 papers in the same direction as this claim · 20 in the opposite direction · 3 reporting no difference from an alternative

1. positive
   In 1998 a maximum potato yield of 40.8 t/ha was obtained at Kufri (Shimla) with 180 kg N, 100 kg P2O5 and 150 kg K2O per hectare, against 14.6 t/ha at the control plots.

   Potassium and integrated nutrient management in potato. · 2002 · compared with control plots

   Same directionCited by this paper

2. positive
   Nitrogen up to 110 kg N/ha improved tuber yield.

   Response of Potato ( Solanum tuberosum L.) Yield and Yield Components to Nitrogen Fertilizer and Planting Density at Haramaya, Eastern Ethiopia · 2015

   Same directionCited by this paper

3. no effect
   PCU and soluble nitrogen at equivalent rates yielded similarly in total and grade A tubers.

   Potato Response to a Polymer‐Coated Urea on an Irrigated, Coarse‐Textured Soil · 2009 · compared with soluble N

   Opposite direction

4. negative
   Under dry soil conditions, split nitrogen application reduced tuber yield and size.

   Rate and timing of nitrogen fertilization of Russet Burbank potato: Yield and processing quality · 2004

   Opposite direction

5. negative
   Variable-rate nitrogen application was unprofitable for the field compared with uniform nitrogen application.

   ECONOMIC AND ENVIRONMENTAL FEASIBILITY OF VARIABLE RATE NITROGEN FERTILIZER APPLICATION WITH CARRY-OVER EFFECTS · 1998 · compared with uniform nitrogen application

   Opposite direction

6. negative
   Inadequate nitrogen limited production of maize and potatoes after the first year.

   Pasture growth and soil fertility · 1965

   Opposite direction

7. no effect
   Potato yield was similar between N rates applied at emergence, except one farm in 2010

   Nitrogen Fertilizer Rate and Application Timing for Chipping Potato Cultivar Atlantic · 2014

   Opposite direction

8. no effect
   At soil nitrate-supplying power of at least 50 p.p.m. N, added nitrogen gave little or no potato yield increase.

   MEASUREMENT OF NITRATE-SUPPLYING POWER OF SOILS BY AN INCUBATION METHOD AND CORRELATION WITH CROP YIELD RESPONSE · 1958

   Opposite direction

123 papers more in this group