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Potato diseases
All coverage ↗Plant health, seed quality, field protection and storage risks.
United States: PAPAS Puts Soil-Sampling Decisions at the Start of Nematode Management
A PAPAS field video featuring nematologist Inga Zasada and Washington potato grower Brett Reynolds draws attention to an early management decision: how to collect soil samples that answer the right question. The update complements the project’s published…
Spain: None of 336 Potato Genotypes Fully Resisted Fusarium Dry Rot, and 57% Proved Highly Susceptible
A two-season NEIKER screening of 336 potato genotypes found no full resistance to Fusarium dry rot, with mean lesion depth ranging from about 3 mm to over 38 mm.
Kenya: AfricaBlight Network Launched to Tackle a Disease Costing Up to USD 7 Billion a Year
The AfricaBlight Network, launched on 27 October in Naivasha, will start in Kenya, Rwanda, Ethiopia and Eritrea with coordinators, forecasting and farmer training.
Potato nutrition
All coverage ↗Nutrient forms, soil conditions and the complete potato season.
Ammonium or nitrate: nitrogen forms in potato nutrition
The question “which nitrogen is better?” has no answer without soil conditions — and too much available N can delay tuber set and cut dry matter.
Phosphorus and potassium before planting: forms, balance and placement
Potato tubers remove about 5.8 kg K₂O per tonne, according to the PDA — but multiplying yield by that figure gives offtake, not a fertilizer rate.
Soil pH and potatoes: why the 5.0–6.0 range is not universal
Moderately acidic soil helps suppress common scab, but there is no single pH target for every farm — it is a trade-off between disease and nutrient availability.
URALCHEM
The project’s potato nutrition coverage and its published partner profile.
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Ammonium or nitrate: nitrogen forms in potato nutrition
The question “which nitrogen is better?” has no answer without soil conditions — and too much available N can delay tuber set and cut dry matter.
Read the material →Phosphorus and potassium before planting: forms, balance and placement
Potato tubers remove about 5.8 kg K₂O per tonne, according to the PDA — but multiplying yield by that figure gives offtake, not a fertilizer rate.
Read the material →Soil pH and potatoes: why the 5.0–6.0 range is not universal
Moderately acidic soil helps suppress common scab, but there is no single pH target for every farm — it is a trade-off between disease and nutrient availability.
Read the material →Potato Nutrition: The Complete Season Roadmap
Potato yields are decided long before harvest — they are built phase by phase, from the moment a sprout pushes through the soil to the last weeks of tuber bulking. A fertiliser programme that ignores the crop's…
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Across the value chain
All coverage ↗Ecuador–United States: Kiwa’s Oil Discussion Highlights Ingredient Choices in the Snack Market
Kiwa founder and CEO Martín Acosta’s industry update draws attention to the debate over frying oils in the United States snack market. For potato and root-crop processors, the useful business question is how a change in oil…
Italy: Barilla’s Automated Truck Loading Offers a Case Study for Potato Processors
E80 Group’s case study of automated truck loading at Barilla’s Pedrignano plant in Parma shows how a food manufacturer can extend warehouse automation to the loading bay. Published on 25 September 2026 and recently shared in the…
The Global Crisis in the Development of the Potato Industry — An Invitation to Dialogue
Viktor Kovalev asks whether growing more potatoes can leave growers less secure. His discussion paper, a response from Rwanda and related perspectives from India and Kenya open a professional dialogue on statistics, seed, storage, demand and investment.
What the numbers tell us about Chile’s potato market
Source, unit and reference period stay beside the chart.
Read the analysis| Period | Wholesale price |
|---|---|
| 2023 annual average | 17,732 |
| November 2025 | 5,995 |
| July 2026 | 12,429 |
Published historical figures from the Potatoes.News report, citing ODEPA. Different periods are compared; this is not a continuous or live price index.
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Field reports, interviews, factory visits and conversations from Potatoes.News.
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