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Insights

Animation

The POLY4 cornerstones

Nutrient release profile

Impact on soil structure


Videos

POLY4 | from our mine to your field

POLY4 | Growing potatoes in Europe

POLY4 | Growing tomatoes in South America

POLY4 | Growing potatoes in North America

POLY4 | Growing corn and soybean in South America

POLY4 | Growing corn in North America

POLY4 | Supporting Brazilian agriculture

POLY4 | Sirius Minerals and Cibra (Portuguese subtitles)

Solubility of POLY4

POLY4 | research and development

POLY4 | a game-changing product

POLY4 | supporting US farmers

POLY4 | a game-changing product

The POLY4 cornerstones

POLY4 | crop science programme

About polyhalite

Sirius Minerals polyhalite project development


Posters

Response of fresh market tomatoes to POLY4 compared to other potassium fertilizers in Brazil – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

POLY4 as a multi-nutrient fertilizer to improve yield and quality of carrots in Brazil – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

Evaluating the effectiveness of gypsum and polyhalite-based fertilizer POLY4 on changing subsoil chemical attributes in a Brazilian Oxisol – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

Suitable POLY4-based blends for major corn-growing agroecological zones of Tanzania – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

Evaluation of Polyhalite-based POLY4 for Enhancing corn and wheat productivity in India – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

Effects of POLY4 fertilizer on European cereal crops – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

Effect of different blending ratios of POLY4 and MOP on corn growth and yield in north-eastern China – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

Validation of programmes with different proportions of K, S, Mg and Ca delivered by POLY4 in replacement of traditional corn fertilization in Mexico – 2019 ASA-CSSA-SSSA, San Antonio, USA – November 2019

Exploring the impact of POLY4 application on soil sodium - San Diego, USA, January 2019

Soybean response to POLY4 as a potassium and sulphur source in northern São Paulo state, Brazil - Baltimore, USA, November 2018

Effect of POLY4 on growth and yield of potato in soils of western plain zone of Uttar Pradesh, India - Baltimore, USA, November 2018

Performance of POLY4 as a multi-nutrient fertilizer for wheat in Poland and European cereals - Baltimore, USA, November 2018

Performance of POLY4 blends compared to MOP blends for rice in different agro-ecological zones of Tanzania - Baltimore, USA, November 2018

Improving fertilizer use efficiency with POLY4 – presented at 21st World Congress of Soil Science – Rio de Janeiro, Brazil, August 2018

POLY4 nutrient movement in soil – presented at 21st World Congress of Soil Science – Rio de Janeiro, Brazil, August 2018

Impact of POLY4 application on soil sodium – presented at 21st World Congress of Soil Science – Rio de Janeiro, Brazil, August 2018

Published at the Fertilizer Added Value event – Madrid 2018

Published at the Fertilizer Latino Americano event – São Paulo 2018

Evaluation of POLY4 for its nutrient availability and accumulation in rice, sesame and peanut

POLY4 as a fertilizer for cotton in Virginia, USA

Effect of POLY4 on soil environments

Potato yield and dry matter response to different sources of potassium fertilizer in the UK

Response of wheat to POLY4 in Jiangsu, China

Published at the NPK Fertilizers event – Vietnam 2017


Presentations

Availability of K & POLY4's significance for soybean product - ASA, November 2018

POLY4 on rice in China - ASA, November 2018

Brackling of a barley crop fertilized with POLY4 -ASA, November 2018

Meeting the growing demand for multi nutrients in Europe, Argus fertiliser — October 2018

The best nutrient management practices with the help of POLY4, Argus Europe Fertilizer — October 2018

POLY4 as a sulphur source for fresh market tomato production in Brazil – American Society for Horticultural Science annual conference – August, 2018


Publications

Polyhalite as a sulfur source for fresh market tomato production in Brazil, Journal of Plant Nutrition – September 2019

Changes in tea performance and soil properties after three years of polyhalite application, Agronomy Journal – June 2019

Response of tomato to POLY4 as a multi-nutrient fertilizer in southeast Brazil, Journal of Plant Nutrition – September 2018

Potato response to polyhalite as a K source fertilizer in Brazil: yield and quality, HortScience – March 2018

Evaluation of polyhalite in comparison to muriate of potash for corn grain yield in the Southern Highlands of Tanzania, International Scholars Journals – March 2017

Granulated polyhalite fertilizer caking propensity, Powder Technology – December 2016