Critical limits of Mehlich 3 extractable phosphorous, potassium, sulfur, boron and zinc in soils for nutrition of rice ( Oryza sativa L.)

Seth, Anindita; Sarkar, Dibyendu; Masto, Reginald Ebhin; Batabyal, Kaushik; Saha, Sajal; Murmu, Sidhu; Das, Ruma; Padhan, Dhaneshwar; Mandal, Biswapati

doi:10.4067/s0718-95162018005001601

Cited by 20 publications

(23 citation statements)

References 24 publications

(42 reference statements)

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“…In addition to this, malnutrition is a serious threat in the region mainly because of heavy reliance upon some cereals like wheat and rice deficient in micronutrients particularly Zn. Deficiency of Zn is considered one of the most widespread micronutrient deficiencies in underdeveloped countries especially South Asia (Seth et al 2018;Haider et al 2018;Ullah et al 2019). On the other hand, World Health Organization (WHO) estimates that one-third of world population has a Zn shortage (Swain et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Characterizing Lentil Germplasm for Zinc Biofortification and High Grain Output

Rasheed

Maqsood

Aziz

et al. 2020

J Soil Sci Plant Nutr

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Micronutrient malnutrition particularly of zinc (Zn) attributes a worse situation mainly in South Asia in addition to the food security. Pulses contribute significantly towards providing calories to the masses in developing countries being the cheap source of protein. Zinc biofortification of pulses mainly of lentil can be a good strategy aimed at both increased profit as well as can combat Zn deficiency in humans. A field experiment was conducted to classify the lentil genotypes based on their higher grain output and grain Zn concentration. The 16 lentil genotypes were cultivated with the following Zn levels: 0, 6 and 9 mg kg −1 and recommended dose of primary nutrients (nitrogen (N), phosphorus (P) and potassium (K)) were applied with three replicates until maturity. Results revealed that application of Zn increased the plant growth, grain production and grain Zn concentration significantly. Zinc application at higher rates i.e. 9 mg kg −1 resulted in higher grain output and concentration of Zn in grain than lower application rate and control. The genotype Mansehra-89 was excellent in terms of high grain output and high Zn contents in their grains. The lentil genotypes, Mansehra-89, Punjab Masoor-2009, Masoor-2002 and Masoor-2006, were classified as high grain yield cultivars, and Line-10502, Mansehra-89, Line-11504 and Markaz-09 were categorized as Zn efficient/responsive genotypes. From the results, it was concluded that the lentil genotypes respond differently upon Zn fertilization and thus improved the crop yield and Zn enrichment of lentil grains. However, keeping in view the desired level of bioavailable Zn, further experimentation is required for general recommendations for right source and application methods. Moreover, these categorizations are helpful in future breeding ventures and to recommend the efficient cultivars aiming at increased Zn contents in grains.

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Section: Introductionmentioning

confidence: 99%

Characterizing Lentil Germplasm for Zinc Biofortification and High Grain Output

Rasheed

Maqsood

Aziz

et al. 2020

J Soil Sci Plant Nutr

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“…Similar increasing trend was also followed by plant N, P, and K uptake by wheat crop. These significant increases in plant N, P, and K uptake were the combined result of increases in biological yields as well as their concentrations in leaf P tissue (Seth et al 2018). However, it must be noted that though N, P, and K uptake were increased with P levels, which is not strange, the values of all these nutrients seemed to be overestimated.…”

Section: Discussionmentioning

confidence: 93%

Optimizing Phosphorus Levels in Wheat Grown in a Calcareous Soil with the Use of Adsorption Isotherm Models

Saeed

Jamal

Muhammad

et al. 2020

J Soil Sci Plant Nutr

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Crop response to phosphorous (P) application is often erratic in most soil types in the world. In alkaline calcareous soils, P retention and mobilization take place due to precipitation and adsorption. P adsorption isotherms are the powerful tools for assessing optimum P levels for different crops and soils. Laboratory and field studies were carried out to evaluate P sorption capacity in a highly calcareous soil and corresponding fertilizer levels for yielding 0.1 to 1.0 mg P L −1 of soil solution. Although Freundlich adsorption isotherm model showed a better fit than Langmuir model, P fertilizer levels used in the field, ranging from 20 to 150 kg P 2 O 5 ha −1 , were based on Langmuir model to yield the estimated P solution. Moreover, nitrogen (N) and potassium (K) were applied at the rates of 120 and 60 kg ha −1 as urea and potassium sulfate (K 2 SO 4), respectively, in a basal treatment at the time of sowing. Grains per spike, 1000-grain weight, grain yield, spike length, and biological yield were increased as the level of P increased, but the non-significant differences among 90, 100, and 120 kg P 2 O 5 ha −1 for most of the above parameters suggested that the former rate could be the maximum level for wheat fertilization in the calcareous soil. Similarly, plant N, P, and K were increased with application of P, but non-significant differences were observed from doses 90 to 120 kg P 2 O 5 ha −1. Moreover, the rate of 90 kg P 2 O 5 ha −1 could yield 0.6 mg P L −1 of soil solution as per Langmuir adsorption isotherm model, while as per Freundlich model, this value could reach only 0.3-0.4 mg P L −1 , which is close to the published literature. It is concluded that Freundlich adsorption isotherm is more suitable to be used for the calculation of phosphatic fertilizer rate and its adsorption capacity in the given soil than Langmuir adsorption isotherm.

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“…Wysokie korelacje uzyskuje siê na ogó³ przy nadmiernych zawartooeciach mikroelementów w glebie (Black et al 2011, Menzies et al 2007. Przy naturalnej ich zawartooeci, silne korelacje wystêpuj¹ w badaniach z niewielk¹ ilooeci¹ gleb lub w dooewiadczeniach, gdzie mikroelementy s¹ dozowane na tle tych samych warunków glebowych (Adiloglu i Kursun 2003, Khan et al 2005, Rodriguez i Ramirez 2005, Sarto et al 2011, Seth et al 2018. Wydaje siê jednak, ¿e wystêpuj¹ca w du¿ych kolekcjach prób bardzo wysoka istotnooeae wspó³czynników korelacji pozwala na wykorzystanie ich w badaniach i prawi-d³owe wnioskowanie.…”

Section: Wyliczenie Liczb Granicznych Metod¥ Równañ Regresji Przy U¯yunclassified

“…Porównywanie liczb granicznych zaprezentowanych w tej pracy z liczbami opracowanymi dla ry¿u w Indiach (Seth et al 2018) lub stanie Arkansan USA (Slaton et al 2002) jest mniej uzasadnione ze wzglêdu na zupe³nie inne warunki klimatyczno-glebowe panuj¹ce w tych rejonach (tab. 12).…”

Section: Podsumowanieunclassified

Development of the limit values of micronutrient deficiency in soil determined using Mehlich 3 extractant for Polish soil conditions. Part I. Wheat

Stanislawska-Glubiak

Korzeniowska

Lipiński³

2019

Soil Science Annual

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To implement the Mehlich 3 method in Polish agro-chemical laboratories, limit values for deficiency of B, Cu, Fe, Mn and Zn in soil for wheat were developed. The values were developed on the basis of 1921 fields with wheat, evenly distributed throughout Poland. Soil samples were collected from these fields in 2016, together with the plants growing on them, at the stage of stem elongation (BBCH 30/31). The concentration of micronutrients was determined in all soil and plant samples. In addition, pH, texture, and the content of organic carbon and available phosphorus were determined in soil samples. Moreover, grain yield after wheat harvest was estimated for all fields. Limit values were developed by two independent methods: 1) the regression equation method and 2) the so-called high yield method. In the first case, the limit microelement concentration in soil was calculated from the equation describing the relationship between the bioaccumulation factor (R/G) and a specific soil feature (n=1921). The bioaccumulation factor is the quotient of the concentration of a micronutrient in a plant (R) and its concentration in the soil (G) determined by the Mehlich 3 method. The equations were constructed using the Stagraphics program. For each micronutrient, 8 models were tested in search for the equation with the highest determination coefficient r2. Limit values were calculated after substituting the critical value of microelements in the plant (R) to the selected model and transforming the equation accordingly. The basis of the second method was to separate the “high yield group” ≥7.0 t ha−1 (n=578) from the entire data set. In this group, lower quintiles for the Mehlich 3-concentration of individual microelements in soil were calculated. The lower quintiles (QU1) were taken as limit values. It was assumed that QU1 is a good indicator of the lowest micronutrient concentration in the soil at which a yield of 7.0 t ha−1 or higher can be obtained. The comparison of the values calculated with the regression equations method and the high yield method showed their similarity, which confirmed the reliability of these values. The proposed values define the limit for low microelements concentration in soil determined with the Mehlich 3 method, below which wheat fertilization with these nutrients is recommended.

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Critical limits of Mehlich 3 extractable phosphorous, potassium, sulfur, boron and zinc in soils for nutrition of rice ( Oryza sativa L.)

Cited by 20 publications

References 24 publications

Characterizing Lentil Germplasm for Zinc Biofortification and High Grain Output

Characterizing Lentil Germplasm for Zinc Biofortification and High Grain Output

Optimizing Phosphorus Levels in Wheat Grown in a Calcareous Soil with the Use of Adsorption Isotherm Models

Development of the limit values of micronutrient deficiency in soil determined using Mehlich 3 extractant for Polish soil conditions. Part I. Wheat

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