Red phosphorus as a fertiliser for grass-clover pasture

Jackman, R. H.; Lambert, J. P.; Rothbaum, H. P.

doi:10.1080/00288233.1970.10425396

Cited by 5 publications

(6 citation statements)

References 1 publication

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“…Thus, Phi is stable under mildly reducing conditions that remove oxidants from solution (Figure 4). As stated earlier, oxidation of Phi to Pi is a relatively slow process [1,2]. Unfortunately, few studies document the influence of soil properties or conditions on Phi oxidation kinetics.…”

Section: Reduced Phosphorus Chemistry In Soilmentioning

confidence: 99%

“…Although phosphate (Pi) fertilizers are initially soluble in soils, H 2 PO 4 − /HPO 4 2− adsorption and precipitation reactions can substantially reduce their availability to and recovery by crops. Reduced phosphorus (P) compounds containing phosphite (Phi) have been investigated since the 1930s as potential sources to meet P requirements of crops [1,2]. Because these early results demonstrated that H 2 PO 3 − /HPO 3 2− oxidation to plant available Pi was a slow process, few reduced P products were developed.…”

Section: Introductionmentioning

confidence: 99%

“…* negative = reduced growth; no = no response; yes = increased growth. 1 negative growth response under low P, no response under adequate P supply 2. response only with ptxD gene.…”

mentioning

confidence: 99%

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Review of Phosphite as a Plant Nutrient and Fungicide

Havlin

Schlegel

2021

Soil Systems

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Phosphite (Phi)-containing products are marketed for their antifungal and nutritional value. Substantial evidence of the anti-fungal properties of Phi on a wide variety of plants has been documented. Although Phi is readily absorbed by plant leaves and/or roots, the plant response to Phi used as a phosphorus (P) source is variable. Negative effects of Phi on plant growth are commonly observed under P deficiency compared to near adequate plant P levels. Positive responses to Phi may be attributed to some level of fungal disease control. While only a few studies have provided evidence of Phi oxidation through cellular enzymes genetically controlled in plant cells, increasing evidence exists for the potential to manipulate plant genes to enhance oxidation of Phi to phosphate (Pi) in plants. Advances in genetic engineering to sustain growth and yield with Phi + Pi potentially provides a dual fertilization and weed control system. Further advances in genetic manipulation of plants to utilize Phi are warranted. Since Phi oxidation occurs slowly in soils, additional information is needed to characterize Phi oxidation kinetics under variable soil and environmental conditions.

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Section: Reduced Phosphorus Chemistry In Soilmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Review of Phosphite as a Plant Nutrient and Fungicide

Havlin

Schlegel

2021

Soil Systems

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“…Reduced phosphorus (P) compounds containing phosphite (Phi) have been investigated since the 1930s as potential sources to meet P requirements (MacIntire et. al., 1950;Jackman et. al., 1970).…”

Section: Introductionmentioning

confidence: 99%

Determination of the efficacies of different phosphites in the management of tomato bacterial speck disease caused by Pseudomonas syringae pv. tomato

NOUR¹,

Horuz

2023

Mustafa Kemal Üniversitesi Tarım Bilimleri Dergisi

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This study tested the efficacy of five different phosphites (calcium, copper, magnesium, potassium and zinc/manganese phosphites) and a fungicide Fosetyl-Aluminum to inhibit bacterial speck disease severity caused by Pseudomonas syringae pv. tomato (Pst) on tomato leaves. The phosphites were applied at the recommended doses to the Pst inoculated plants in pots by foliar spraying at one-week intervals for a total of 4 weeks. The plants were kept in a controlled greenhouse under relative humidity (%75-90) and temperature (22-24 °C) until disease symptoms appeared in the control plants. Phosphites and Fosetyl-Aluminum inhibited the Pst symptoms on tomato leaves by 42.1-75.0% in the first and 22.8-90.3% in the second experiments. This study demonstrated the direct influence of phosphites on tomato bacterial speck. The study suggested that phosphites can be an effective alternative for the chemical control of tomato bacterial disease. The bacterial agent, Pst, causes bacterial speck disease in tomatoes. The initial symptoms of the disease are water-soaked, small dark brown spots surrounded by a yellow halo on tomato leaves. Since the pathogen is seed-borne, control of the disease is difficult.

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“…По этой причине приобрели актуальность разработки методов детоксикации, которые можно использовать крупномасштабно -недорогих и без использования токсичных реагентов. Известны попытки применения элементного (белого и красного) фосфора в качестве фосфорного удобрения [Jackman et al, 1970;Rodriguez et al, 1972], но без большого успеха. В работе [Bohn et al, 1970] сообщается о естественной детоксикации белого фосфора в почве, однако авторы предполагают абиотическое окисление: исследования проводились на щелочных почвах, а в щелочной среде белый фосфор нестабилен даже в отсутствие кислорода.…”

Section: Introductionunclassified

Rational for the Method of Biological Purification of Environments Contaminated With White Phosphorus

Миндубаев¹,

Voloshina²,

Badeeva³

et al. 2019

NV BelSU. Series: Natural Sciences

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Белый фосфор Р4 является веществом первого класса опасности. Тем не менее, не исключается проникновение данного вещества в окружающую среду, поскольку белый фосфор находит применение в промышленности и в военных целях. Следовательно, работы над созданием методов детоксикации этого вещества актуальны. Нашим коллективом впервые наблюдался рост микроорганизмов (грибов, стрептомицетов и бактерий) в культуральных средах, содержащих в качестве единственного источника фосфора белый фосфор. В данных средах микроорганизмы не только не погибали, но и не демонстрировали признаки фосфорного голодания. Это первый пример вхождения белого фосфора в природный круговорот биогенного элемента фосфора. В эксперименте самая высокая концентрация соответствует превышению ПДК белого фосфора в сточных водах в пять тысяч раз, а в питьевой воде -в сто миллионов раз. После обнаружения метаболитов белого фосфора предложена схема его метаболизма. Впервые наблюдался рост устойчивости микробных культур к данному ксенобиотику. Показано, что устойчивость культур микроорганизмов к белому фосфору зависит от их таксономической принадлежности -штаммы грибов Aspergillus niger адаптируются к нему лучше, чем бактерии. Выделен штамм Aspergillus niger, наиболее устойчивый к высоким концентрациям токсиканта. Обоснована возможность создания и использования биологического метода ликвидации загрязнений белым фосфором.

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Red phosphorus as a fertiliser for grass-clover pasture

Cited by 5 publications

References 1 publication

Review of Phosphite as a Plant Nutrient and Fungicide

Review of Phosphite as a Plant Nutrient and Fungicide

Determination of the efficacies of different phosphites in the management of tomato bacterial speck disease caused by Pseudomonas syringae pv. tomato

Rational for the Method of Biological Purification of Environments Contaminated With White Phosphorus

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