Polyhalite as a potassium and multinutrient source for plant nutrition

Molin, Sulian Junkes Dal; Nascimento, C. O.; Teixeira, P. C.; Benites, V. de M.

doi:10.1080/03650340.2019.1631451

Cited by 10 publications

(7 citation statements)

References 15 publications

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“…There are no published reports on the use of PYH in sugarcane and it is not included in reviews, such as Manning's (2010) review of mineral sources of K for plant nutrition. Recently, PYH was used in Brazil as the K source in NPK fertilizer blends increasing yield and quality of potato (Solanum tuberosum L. Mello et al, 2018a) and tomato (Solanum lycopersicum L. Mello, Tonhati, Neto, Darapuneni, & Pavuluri, 2018b), while also used as an S source for tomato (Mello, Pavuluri, & Pierce, 2019) and corn (Zea mays L.; Molin, Nascimento, Teixeira, & De Melo Benites, 2019).…”

Section: Introductionmentioning

confidence: 99%

Sugarcane response to polyhalite fertilizer in Brazilian Oxisols

et al. 2020

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Polyhalite (PYH), (K 2 SO 4 ůMgSO 4 ů2CaSO 4 ů2H 2 O), contains four nutrients of great importance to sugarcane (Saccharum spp.), but has lower water solubility than traditional K fertilizers. Two studies were conducted to determine if PYH fertilizer (11.6% K) promoted sugarcane response comparable to other K fertilizers on highly weathered, acidic Oxisol soils in Brazil. A pot study compared PYH with potassium chloride (KCl, 50% K) and potassium sulfate (K 2 SO 4 , 40% K and 17% S), both amended to the same Ca, Mg, and S contents, applied at five rates ranging from 0 to 166 kg K ha −1 in limed and unlimed soil. A field study evaluated PYH with KCl applied in a 5-30-10 blend at planting followed by sidedress applications of K as PYH or KCl in the establishment year and two ratoon crops. In the pot study, there were minimal effects of fertilizer source and application rate on early growth in sugarcane while liming was detrimental. Uptake of K in the biomass was linear and similar among fertilizer sources. PYH increased S uptake and soil tests compared to KCl and K 2 SO 4. In the field study, KCl and PYH had similar sugarcane yield and quality with K uptake in both exceeding K applied and PYH increased S uptake and soil test SO 4-S. These studies confirm nutrient release from PYH to sugarcane was adequate and comparable to KCl and K 2 SO 4 , with some effect of PYH on nutrient uptake and soil test that did not affect sugarcane yield or quality.

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Section: Introductionmentioning

confidence: 99%

Sugarcane response to polyhalite fertilizer in Brazilian Oxisols

et al. 2020

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“…At low K rates, Dal Molin et al . (2020) reported that polyhalite was less effective than MOP but other studies have suggested that their performances are comparable (Pavuluri et al ., 2017; Bernardi et al ., 2018; Mello et al ., 2018). One possible explanation is that the lower solubility of polyhalite in comparison to other fertilizers might restrict K availability at lower application rates (Yermiyahu et al ., 2017).…”

Section: Discussionmentioning

confidence: 99%

“…These results support the early findings of Fraps and Schmidt (1932) and Lepeshkov and Shaposhnikova (1958) and confirm that polyhalite is an effective multi-nutrient fertilizer. More recent work on potato found that polyhalite performed as well as MOP and SOP as a source of K (Mello et al ., 2018), was similar or superior to MOP in corn (Dal Molin et al ., 2020), and was a more efficient fertilizer for supplying K, Ca, Mg and S relative to equivalent soluble salts in wheat (Yermiyahu et al ., 2017). This evidence suggests that polyhalite is indeed an effective source of plant nutrients.…”

Section: Discussionmentioning

confidence: 99%

The response of winter barley (Hordeum vulgare) and forage maize (Zea mays) crops to polyhalite, a multi-nutrient fertilizer

et al. 2020

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Polyhalite is a multi-nutrient mineral ore containing potassium (K), calcium (Ca), magnesium (Mg) and sulphur (S). Historically, it has enjoyed minor use as a fertilizer, but the opening of a new mine in the UK will make larger quantities available. Therefore, an examination of the performance of crops fertilized with polyhalite, or selected commercial alternatives, was pertinent and is reported here. Four field trials were carried out between 2013 and 2016 to investigate the response of winter barley (Hordeum vulgare L.) and forage maize (Zea mays L.) to different application rates of polyhalite, potassium chloride (muriate of potash, MOP) and potassium sulphate (sulphate of potash, SOP) fertilizers. Potassium and S nutrition were the focus of these trials as they limit field production more often than Mg and Ca. Polyhalite was found to be an effective source of both K and S for crop production. In three out of four trials, application of polyhalite resulted in similar or greater K offtake compared with both MOP and SOP; MOP application resulted in greater K offtake in one trial. In three out of four trials, application of polyhalite resulted in similar or better S offtake compared with both MOP and SOP; SOP application resulted in greater S offtake in one trial. Polyhalite and MOP treatments produced similar total dry weight in all four trials, but were slightly inferior to SOP treatment.

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“…Hasil analisis kimia kandungan pupuk menunjukkan bahwa polyhalite mengandung lebih dari 10 unsur hara yang penting bagi pertumbuhan dan perkembangan tanaman (Barbier et al, 2017). Unsur K, Ca, Mg, dan S pada Polyhalite juga mudah tersedia bagi tanaman, baik pada tanah lempung maupun tanah berpasir (Dal Molin et al, 2019;Yermiyahu et al, 2017). Tu (2018) melaporkan bahwa aplikasi polyhalite pada tanaman teh di tanah basaltik (rhodic ferrasols) di Lam Dong, Vietnam dapat memasok K, Ca, Mg dan S yang dibutuhkan tanaman, meningkatkan kepadatan, berat dan ukuran tunas teh, sehingga meningkatkan produktivitas teh.…”

Section: Pendahuluanunclassified

Aplikasi Polyhalite sebagai Pengganti ZK dan Pengaruhnya terhadap Kadar K, Mg, dan S Daun, Produksi, dan Mutu Buah Jeruk Siam

Sutopo

Aji

2020

Agrosains: J. Penelit. Agron.

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<p>As a natural mineral that contains several macro elements, polyhalite (K2Ca2Mg (SO4) 4H2O) has good potential as a fertilizer. This study aims to study the effect of polyhalite on branch growth, leaf nutrition (K, Mg and S), chlorophyll index, harvest weight, fruit quality, and the effective dose of Siam citrus. A 4-year-old Siam citrus planted on vertisol soil was treated with 6 fertilizer treatments: 625; 1,000; 1,375; 1,750; 2.125 kg polyhalite and 625 kg ZK/hectare/year. The experiment using a randomized block design was repeated 3 times. The results showed that<br />the application of polyhalite at the same K2O dose as ZK increased leaf Mg content, chlorophyll index and total juicesolids significantly. Polyhalite application of 1,750 kg/hectare (2.8 kg/tree) is an effective dose for mature Siam citrus in vertisol with moderate K status and high Ca and Mg status.</p>

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Polyhalite as a potassium and multinutrient source for plant nutrition

Cited by 10 publications

References 15 publications

Sugarcane response to polyhalite fertilizer in Brazilian Oxisols

Sugarcane response to polyhalite fertilizer in Brazilian Oxisols

The response of winter barley (Hordeum vulgare) and forage maize (Zea mays) crops to polyhalite, a multi-nutrient fertilizer

Aplikasi Polyhalite sebagai Pengganti ZK dan Pengaruhnya terhadap Kadar K, Mg, dan S Daun, Produksi, dan Mutu Buah Jeruk Siam

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