scholarly journals Most Plant Nutrient Elements Are Retained by Biochar in Soil

Soil Systems ◽  
2019 ◽  
Vol 3 (4) ◽  
pp. 75
Author(s):  
Tanawan Limwikran ◽  
Irb Kheoruenromne ◽  
Anchalee Suddhiprakarn ◽  
Nattaporn Prakongkep ◽  
Robert J. Gilkes
Keyword(s):  
Water Soluble ◽  
Plant Nutrients ◽  
Nutrient Elements ◽  
Plant Nutrient ◽  
Chemical Fertilizers ◽  
Agronomic Effectiveness ◽  
Laboratory Methods ◽  
Standard Methods

Biochar may contain substantial amounts of plant nutrient elements, and at typical rates of application, may supply luxury levels of K, Ca, P, and other plant nutrients. However, little is known of the agronomic effectiveness of these nutrients because they exist in diverse compounds and are located in the microporous matrix of biochar particles. We have identified the compounds and location of nutrient elements in three biochars and observed their release from biochar particles in soil. Much K was quickly released from biochar but little or no Ca, Mg, S, and P were released over eight months, which represents a very different behavior from chemical fertilizers that are mostly water soluble. There is clearly a need to determine the availability to plant nutrients in biochar. Appropriate laboratory methods should be developed for measuring the availability of plant nutrients as standard methods of fertilizer analysis are ineffective.

Identification of Australian barley cultivars by laboratory methods: gel electrophoresis and gel isoelectric focusing of the endosperm proteins

1977 ◽  
Vol 17 (89) ◽  
pp. 1020 ◽  
Author(s):  
J McCausland ◽  
CW Wrigley
Keyword(s):  
Isoelectric Focusing ◽  
Gel Electrophoresis ◽  
Water Soluble ◽  
The Other ◽  
Starch Gel Electrophoresis ◽  
Laboratory Methods ◽  
Barley Cultivars ◽  
Starch Gel ◽  
Electrophoretic Techniques ◽  
Gel Isoelectric Focusing

A range of laboratory methods was examined for their ability to distinguish between 19 barley cultivars currently grown in Australia. Aleurone colour, revealed after mechanical or chemical dehulling, differentiated Abyssinian, Atlas, Cape and Corvette from the other cultivars. Peroxidase and phenol testing were not useful. Seven different patterns were obtained for the hordeins of lowest mobility by starch gel electrophoresis. Further distinction was provided by flat gel isoelectric focusing of the water-soluble and hordein proteins for which 13 different pattern-groupings were obtained. The two electrophoretic techniques complemented one another, so that the use of both methods left only a few cultivars that could not be distinguished.

Some Inorganic Compounds as Sprays: Their Effects on Insect Biology on Arachis hypogaea L.1,2

1977 ◽  
Vol 4 (1) ◽  
pp. 7-8
Author(s):  
D. B. Leuck ◽  
R. O. Hammons
Keyword(s):  
Arachis Hypogaea ◽  
Spodoptera Frugiperda ◽  
Inorganic Compounds ◽  
Fall Armyworm ◽  
Nutrient Elements ◽  
Plant Nutrient ◽  
Arachis Hypogaea L ◽  
Insect Biology

Abstract Inorganic compounds containing plant nutrient elements sprayed on peanut, Arachis hypogaea L., foliage affected antibiosis expressions of the plant to feeding by the fall armyworm, Spodoptera frugiperda (J. E. Smith).

Forms and solubility of plant nutrient elements in tropical plant waste biochars

2015 ◽  
Vol 178 (5) ◽  
pp. 732-740 ◽  
Author(s):  
Nattaporn Prakongkep ◽  
Robert John Gilkes ◽  
Wanpen Wiriyakitnateekul
Keyword(s):  
Nutrient Elements ◽  
Plant Nutrient ◽  
Tropical Plant ◽  
Plant Waste

The chemical composition of British agricultural liming materials

1974 ◽  
Vol 82 (2) ◽  
pp. 193-205 ◽  
Author(s):  
Margaret Chater ◽  
R. J. B. Williams
Keyword(s):  
Chemical Composition ◽  
Soluble Fraction ◽  
Insoluble Fraction ◽  
Water Soluble ◽  
Plant Nutrients ◽  
Spectrographic Analysis ◽  
Potential Value

SummaryNinety-four British liming materials were examined. The contents of Ca, Mg, K, P, S, Sr, B, Fe, Mn, Zn, Cu, Co, Mo, Ni, Cd and Na in the acid-soluble fraction, and Mn, Cu, Co, Mo, Ni, Sr, Ti, Cr, Ga, Pb, Sn, V, Y, Zr and Ba in the acid-insoluble fraction were determined by chemical and spectrographic analysis. Water soluble nitrate was also determined.Only manganese, providing on average 3 kg Mn/ha for a 10 t/ha dressing, was found in agriculturally significant quantities in the acid-soluble fraction of the limestones or shell-sands analysed. Magnesium, present only in significant amounts in the dolomitic limestones, provided on average 27 kg Mg/ha from a 10 t/ha dressing.The acid-insoluble fraction of the limestones contained, on average, a twentieth of the concentration of Mn in the acid-soluble fraction. The concentration of K was much larger and depended on the amounts and nature of the insoluble fraction. The acidinsoluble fraction contained no significant amounts of other plant nutrients. The relative concentrations of Mn and K in both fractions emphasize that results based on the total amounts of elements in limestones could overestimate their potential value as sources of plant nutrients.

scholarly journals 380 Differential Responses of Container-grown Ornamental Foliage Plants to Silicon Application

HortScience ◽  
2000 ◽  
Vol 35 (3) ◽  
pp. 458B-458 ◽  
Author(s):  
Jianjun Chen ◽  
Russell D. Caldwell ◽  
Cynthia A. Robinson ◽  
Bob Steinkamp
Keyword(s):  
Plant Growth ◽  
Plant Species ◽  
Ornamental Plants ◽  
Dry Weight ◽  
Water Soluble ◽  
Nutrient Elements ◽  
Growth Responses ◽  
Soilless Media ◽  
Ornamental Foliage Plants ◽  
Abundant Element

Silicon (Si) is the second most-abundant element in soils, and its concentration in soil solution ranges from 0.1 to 0.6 mm, which is the same concentration range as some of the major nutrient elements such as calcium, magnesium, phosphorus, and sulfur. Increasing evidence has recently suggested that Si plays important roles in improving plant growth. However, little information is available on Si effects on container-grown ornamental plants, particularly since most are grown in soilless media where Si sources are greatly limited. The objectives of this research were to evaluate Si absorption and translocation in diverse container-grown ornamental plants and to determine whether Si absorption could improve plant growth. Liners from 39 plant species were potted in peat and pine bark-based soilless media and grown in a shaded greenhouse. Plants were fertigated with a Peter's 24–8–16 water-soluble fertilizer containing 0, 50, and 100 mg·L–1 of Si. Once marketable sizes were reached, plants were harvested and fresh and dry weights determined; Si and other nutrient elements in roots and shoots were measured. Results indicated that 32 of the 39 evaluated species were able to absorb Si, with large quantities further transported to shoots. Of the 32 Si-responsive species, 17 showed significant dry weight increases, whereas the other 15 only exhibited Si absorption and translocation with no apparent growth responses. The seven non-responsive plant species showed no significant increases in neither Si absorption and translocation, nor dry weight.

scholarly journals Balanced fertilization for increasing and sustaining fruit quality and productivity-A Review

2021 ◽  
Vol 17 (2) ◽  
pp. 704-711
Author(s):  
Rajesh Lather ◽  
Vandana ◽  
Sridevi Tallapragada ◽  
Gurnam Singh
Keyword(s):  
Fruit Quality ◽  
Nutrient Management ◽  
Nutrient Use Efficiency ◽  
Soil Health ◽  
Consumer Preference ◽  
Plant Nutrients ◽  
Management Approach ◽  
Plant Nutrient ◽  
Fruit Crops ◽  
Balanced Fertilization

Balance nutrient management is an approach to soil health management that combines organic and mineral methods of soil fertilization with physical and biological measures for soil and water conservation. The indiscriminate use of chemical pesticides along with improper nutrient management is deleterious to the plant and soil health, environment and human being who consume them. It also causes soil health deterioration and disturbs the soil microorganisms. Due to these practices, the plants also become susceptible to several biotic and abiotic stresses. The quality attributes of different fruits are badly affected due to indiscriminate application of inorganic agro-chemicals which results in quality deterioration with less consumer preference and low returns to the growers. Thus, adequate mineral nutrition is a pre-harvest factor affecting fruit quality. Therefore, it is a holistic approach based on usage of all possible sources of plant nutrients in an integrated manner is considered as alternative source to maintain soil fertility and plant nutrient supply for sustaining the desired crop productivity. Due to huge distinction in the nutrient use efficiency of perennial fruit crops, their nutrient management- based production system is characteristically intricate to understand. Integrated plant nutrient management aims to optimize the condition of the soil, with regard to its physical, chemical, biological and hydrological properties, for the purpose of enhancing farm productivity, whilst minimizing land degradation. There are studies that integrated nutrient management provide tangible benefits in terms of higher yields, but simultaneously and almost imperceptibly conserve the soil resource itself along with produce quality. The replenishment of soil nutrients lost by leaching and/or removed in harvested products through an integrated plant nutrition management approach that optimizes the benefits from all possible on- and off-farm sources of plant nutrients. The review on balanced fertilization on a variety of fruit crops revealed similar combinations. These observations provided a countrywide database that INM module which consists of nutrient sources having three-tier nutrient release pattern, has far reaching consequences on soil and plant health translating into real guard production sustainability, nearer to climate resilient fruit crops.

scholarly journals A Note on the Fertilizer Ratio Concept

1978 ◽  
Vol 17 (1) ◽  
pp. 123-130
Author(s):  
John Reuss ◽  
Sam Johnson III
Keyword(s):  
Plant Nutrients ◽  
Nutrient Ratios ◽  
Plant Nutrient ◽  
Nitrogen And Phosphorus ◽  
The Press ◽  
Planning Production

The concept of plant nutrient ratios has long been utilized by agronomists and appears to be particularly prevalent in Pakistan. Production experts often express concern that the nutrient ratios utilized by the farmers are not optimum for a particular crop [4]. These concerns are reflected in the press and are considered by those charged with planning production and imports. Agronomists interested in plant nutrients may thus find themselves designing experiments to determine the optimum ratios of plant nutrients for different crops grown under different conditions. For the sake of simplicity we will limit this discussion to two nutrients, nitrogen and phosphorus and the resulting N/P ratios. This is appropriate because these fertilizer elements are the most widely used in Pakistan and crops often respond to their use. However, combinations involving other nutrients or crop inputs are subject to the same principles.

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