Aspects of the Mineral Nutrition of the Western Australian Christmas Tree (Nuytsia floribunda (Labill.) R. Br.), With Special Reference to the Main Root

1980 ◽  
Vol 28 (4) ◽  
pp. 385 ◽  
Author(s):  
PJ Hocking
Keyword(s):  
Xylem Sap ◽  
Outer Zone ◽  
Fruit Production ◽  
Main Root ◽  
Concentration Gradients ◽  
Nitrogen And Phosphorus ◽  
Manganese Zinc ◽  
Calcium Magnesium ◽  
Iron Manganese ◽  
Nitrogen Phosphorus

A study was made of the shape, dimensions and possible nutritional significance of the main root of the hemi parasite Nuytsia floribunda. Levels of nitrogen, phosphorus, potassium, sulfur, calcium, magnesium, sodium, iron, manganese, zinc and copper were determined in the main root: haustoria, xylem sap, mucilage, trunk and leaves. The main root was approximately turnip-shaped and there was no evidence of a tap-root. Haustoria were confined to the top 15-20 cm of the soil and were attached to a variety of woody and herbaceous host plants. Haustoria contained the highest levels of nitrogen and phosphorus, the trunk and main root the highest levels of calcium, magnesium and sodium. Potassium and sodium accounted for 75% of the minerals in xylem sap. calcium and magnesium for 60% of the minerals in mucilage which exuded from wounds in the main root. Concentration gradients of most minerals existed across the main root. Nitrogen, phosphorus, potassium, sulfur and sodium were more concentrated in the outer zone of the root, calcium, magnesium, manganese and copper in the central part. Nuytsia appears to draw on stored nutrients in some situations. Conservative estimates suggested that nutrient reserves in the main root could not provide the amounts required for flower and fruit production. It was concluded that reproductive and vegetative growth draws on reserves in organs other than the main root and the extensive lateral root system may be important in this respect.

scholarly journals Physical and Biochemical Assessment of Sugarcane Bagasse (Saccharum Officinarum)

2019 ◽  
Vol 8 (12) ◽  
pp. 165-168
Keyword(s):  
Sugarcane Bagasse ◽  
Saccharum Officinarum ◽  
Proximate Analysis ◽  
Fiber Cells ◽  
Manganese Zinc ◽  
Mean Diameter ◽  
Calcium Magnesium ◽  
Iron Manganese ◽  
Biochemical Assessment ◽  
Nitrogen Phosphorus

Bagasse was milled into small size of 0.200152 mm volume surface mean diameter. The powder was found to be a rich source of many macro and micro nutrients, namely Nitrogen, Phosphorus, Potassium, Calcium, Magnesium, Sulphur, Iron, Manganese, Zinc, and Copper. FTIR spectrum indicates the possible presence of polysaccharides like cellulose, lignin and hemicelluloses, and polyphenols in the bagasse sample. Micro-images of the bagasse obtained through SEM shows the features of fiber structures. The fiber cells are cross-linked and surface seems to be rough and thick-walled. The fiber pith was found to have pits at some places. Proximate analysis through EDX shows the high proportions of Carbon (44.51%) and Oxygen (55.49%).

scholarly journals CHEMICAL COMPOSITION OF WHOLE GRAINS IN COMMON BEANS LANDRACES AND BREEDING GENOTYPES

2015 ◽  
Vol 2 ◽  
pp. 81 ◽  
Author(s):  
Gilberto Antonio Peripolli Bevilaqua ◽  
Iraja Ferreira Antunes
Keyword(s):  
Nutritional Composition ◽  
Whole Grain ◽  
Breeding Programs ◽  
Breeding Lines ◽  
Manganese Zinc ◽  
Nutritional Characteristics ◽  
Calcium Magnesium ◽  
The Common ◽  
Iron Manganese ◽  
Insoluble Fiber

The common bean has been object of breeding programs aiming the development of new cultivars adapted to varied production system and shown differentiated nutritional characteristics. Due a genetic diversity existent the landraces can be used directly for cropping, for present characteristics desirable. Little information exists about mineral content and other quality traits for those bean landraces. The aim of this paper was to verify the variability for grain nutricional caracters in breeding cultivars and landraces of bean from Rio Grande do Sul state, Brazil. The experiment was conducted in 2009/2010 in Experimental Station Cascata, of Embrapa Temperate Agriculture. In whole grain of 54 bean genotypes with black and no black coat were determined macroelements (nitrogen, phosphorus, potash, calcium, magnesium and sulfur), oligoelements (iron, manganese, zinc and cuprum), protein and ash content, insoluble fiber, digestive nutrient and antioxidant astragalina. The results shown that the landraces varieties presents nutritional composition of macro and oligoelements, fibers, protein and ash contents in whole grain similar than that of breeding lines and cultivars. The black coat grain from breeding programs showed better nutritional quality for macro and oligoelements content than coloured grain, highlighting TB 02-04 e TB 01-01. The landraces with coloured grains TB 02-26, TB 02-24 and TB 03-13 showed the high levels of astragaline.

BLOAT INVESTIGATIONS: II. A COMPARISON OF THE TRUE PROTEIN AND ELEMENT CONTENTS OF ALFALFA HAY FROM BLOATING AND NON-BLOATING FARMS

1964 ◽  
Vol 44 (2) ◽  
pp. 175-181 ◽  
Author(s):  
J. E. Miltimore ◽  
J. M. McArthur ◽  
J. L. Mason ◽  
R. B. Carson
Keyword(s):  
Correlation Coefficient ◽  
Correlation Coefficients ◽  
Nitrogen And Phosphorus ◽  
Stage Of Development ◽  
Alfalfa Hay ◽  
Calcium Magnesium ◽  
Similar Range ◽  
The Mean ◽  
True Protein ◽  
Nitrogen Phosphorus

Alfalfa samples at the hay stage of development were harvested by hand from 35 farms where bloat was a serious problem and from 38 farms where bloat did not occur even on lush legume pastures. The samples were analysed for nitrogen, phosphorus, potassium, sulphur, calcium, magnesium, and true protein. There were no differences in the mean contents of these constituents between bloating and non-bloating farms. There were wide ranges within both types of farm; true protein for example varied from 7.3 to 14.6% in alfalfa from bloating farms, with a similar range from 7.7 to 16.9% from non-bloating farms. Correlation coefficients revealed a significant association between nitrogen and phosphorus (.488) in alfalfa from non-bloating farms. There were significant associations between sulphur and nitrogen (.366) and between sulphur and protein (.707) in alfalfa from bloating farms. This correlation between sulphur and protein was the only coefficient that was significantly different from the corresponding correlation coefficient for non-bloating farms.

scholarly journals Testing and validation of DRIS for apple tree

2007 ◽  
Vol 64 (3) ◽  
pp. 288-294 ◽  
Author(s):  
Gilmar Ribeiro Nachtigall ◽  
Antonio Roque Dechen
Keyword(s):  
Apple Tree ◽  
Reference Group ◽  
Correlation Coefficients ◽  
Calcium Magnesium ◽  
Tree Leaf ◽  
Iron Manganese ◽  
The Relationship ◽  
Nitrogen Phosphorus ◽  
Nutritional Balance ◽  
Balance Index

To evaluate three procedures of the calculation of DRIS indices, as well as the efficiency of DRIS as a method for the interpretation of apple tree leaf analyses. This study uses data collected in apple producing areas of the Rio Grande do Sul and Santa Catarina States, Brazil. The concentrations of nitrogen, phosphorus, potassium, calcium, magnesium, boron, copper, iron, manganese, and zinc were determined in the leaf samples. The validation of the DRIS method used results of an experiment of potassium fertilization. The DRIS indices were calculated using two criteria for the choice of the ratio order of nutrients (F value ratio of variance of the relationships among nutrients between the reference group and the low productivity group, and R value - correlation coefficients between the productivity and the relationship between pairs of nutrients) and three forms of calculation of nutrient functions (methods of Beaufils, Jones and Elwali & Gascho). The Nutritional Balance Index (NBI) presented negative correlation with the productivity in all combinations. The DRIS method described by Elwali & Gascho, using the F value, presented a performance similar to the criterion of sufficiency range, and it can be used for the interpretation of foliar analysis of apple trees, because it presents values of the nutritional balance index that indicates the nutritional status of the plants, and for the efficiency in the nutritional diagnosis of the crop.

scholarly journals Nutrient Release from Controlled-release Fertilizers in Acid Substrate in a Greenhouse Environment: II. Leachate Calcium, Magnesium, Iron, Manganese, Zinc, Copper, and Molybdenum Concentrations

HortScience ◽  
2006 ◽  
Vol 41 (3) ◽  
pp. 788-793 ◽  
Author(s):  
Eugene K. Blythe ◽  
Donald J. Merhaut ◽  
Julie P. Newman ◽  
Joseph P. Albano
Keyword(s):  
Controlled Release ◽  
Cultural Practices ◽  
Nutrient Release ◽  
Greenhouse Production ◽  
Production Program ◽  
Manganese Zinc ◽  
Calcium Magnesium ◽  
Iron Manganese ◽  
Acid Substrate ◽  
Controlled Release Fertilizers

Leachate from containerized substrate containing one of four different controlled-release fertilizers (Osmocote, Nutricote, Polyon, or Multicote) were monitored for concentrations of Ca, Mg, Fe, Mn, Zn, Cu, and Mo during a 47-week period. Environmental and cultural practices simulated an unheated greenhouse production program typically used for low-nutrient-requiring crops such as azalea and camellia. Leachate concentrations of all nutrients were relatively high during the first 10 to 20 weeks of the study, and then gradually decreased during the remaining portion of the experiment. Few differences were observed among fertilizer types. Of the elements monitored, only Fe and Mn leachate concentrations were above critical levels specified in the Clean Water Act by the U.S. EPA.

The effect of field drying on the concentrations of some major elements in herbage

1986 ◽  
Vol 107 (1) ◽  
pp. 9-13 ◽  
Author(s):  
D. Wilman ◽  
Nthoana Mzamane
Keyword(s):  
White Clover ◽  
Dry Matter ◽  
Major Elements ◽  
Maturity Level ◽  
Nitrogen And Phosphorus ◽  
Calcium Magnesium ◽  
Calcium And Magnesium ◽  
Two Stages ◽  
Late Stages ◽  
Nitrogen Phosphorus

SUMMARYHerbage from a grass-white clover sward was dried in the field to the hay stage (≤ 0·33 g moisture/g dry matter) at three times of year in 2 years comparing, in each case, all combinations of two stages of maturity, two levels of applied nitrogen and two thicknesses of swath. Samples taken at intervals during drying were analysed for nitrogen, phosphorus, potassium, calcium, magnesium and sodium.When there was little or no rain during drying, there was no change in the concentration of any of the six elements in the herbage dry matter between cutting and the hay stage, whatever the stage of maturity, level of N applied or swath thickness.The concentrations of potassium and sodium in the crop were greatly reduced by rain in the later stages of drying, but were less affected by rain in the early and middle stages; the concentrations of calcium and magnesium appeared to be reduced by rain as readily in the middle as in the later stages; the concentrations of nitrogen and phosphorus were relatively little affected by rain, but seemed likely to be more at risk in the later stages. The extent of the reductions in the concentration of elements was not markedly affected by the stage of maturity or level of N applied. There were reductions in the thin but not in the thick swaths when rain fell during the early and middle stages of drying, probably partly or wholly because the herbage in the thin swaths was drier, with a higher proportion of dead cells, at that time than the herbage in the thick swaths. At least 70 kg K/ha was leached out of the crop in the thick swaths by rain in the late stages of drying.

scholarly journals Influence of Mineral Deficiencies on the Growth and Yield of Sugarcane

1969 ◽  
Vol 47 (2) ◽  
pp. 61-75
Author(s):  
George Samuels ◽  
Héctor Cibes-Viadé
Keyword(s):  
Growth And Yield ◽  
Nitrogen And Phosphorus ◽  
Sugarcane Varieties ◽  
Minor Elements ◽  
Complete Treatment ◽  
Calcium Magnesium ◽  
The Mean ◽  
Nitrogen Treatment ◽  
The Individual ◽  
Iron Manganese

Four sugarcane varieties, B. 37161, H. 328560, M. 336, and P.R. 980, grown in sand cultures in the greenhouse were allowed to develop deficiency symptoms caused by lack of major and minor elements. The elements studied were nitrogen, phosphorus, potassium, calcium, magnesium, iron, manganese, sulfur, and boron. The most important results were as follows: 1. There were differential responses to the various deficiency treatments by the individual varieties as to total green weight and millable cane stalks. 2. The absence of nitrogen and phosphorus had the greatest influence in retarding growth and yields in plants at 6 1/2 months of age for the average of all varieties. 3. The complete treatment produced the highest yields of total green weight and also of millable cane for the average of the four varieties. The minus-nitrogen treatment failed to produce millable cane for B. 37161 and M. 336. 4. The minus-potassium and minus-calcium treatments were about tied for third place in yields of total green weight and millable cane. 5. The absences of magnesium, sulfur, iron, manganese, and boron were about equal in effects on yields for the mean of the four varieties. 6. The ranking in descending order of Brix was H. 328560 > M. 336 > P.R. 980 > B. 37161, and for polarization M. 336 > H. 328560 > P.R. 980 > B. 37161. 7. The highest Brix and polarization values were obtained from millable cane grown under the minus-nitrogen treatment and the lowest under the minus-potassium treatment. 8. The growth response in height followed rather closely the production of green millable stalks, insofar as the influence of the various deficiencies was concerned. 9. The most tillers per sugarcane stool were produced under the complete treatment, with the exception of P.R. 980. Poorest tillering was associated with the minus-phosphorus treatment. 10. The top-to-stalk ratio under the complete treatment was lowest for H. 328560, with P.R. 980 a close second, B. 37161 a poor third, and M. 336 last. 11. The weight of sugarcane roots was in general highest for the complete treatment and lowest in the minus-nitrogen, minus-phosphorus, and minusiron treatments. The weight of roots for the complete treatment of the 4 varieties descended thus: M. 336 > B. 37161 > P.R. 980 > H. 328560.

scholarly journals Calcium, Magnesium and Micronutrient Uptake in Watercress (Nasturtium officinale) under Arsenic and Salinity Stress Conditions

2021 ◽  
Vol 2 (4) ◽  
pp. 251-255
Author(s):  
J Sufian ◽  
A Golchin ◽  
A Avanes
Keyword(s):  
Heavy Metals ◽  
Nutrient Solution ◽  
Nasturtium Officinale ◽  
Manganese Zinc ◽  
Randomized Design ◽  
Micronutrient Uptake ◽  
Salinity Levels ◽  
Calcium Magnesium ◽  
Iron Manganese ◽  
Nutrient Solutions

Heavy metals are elements that mainly have a 5-22 gr.cm-3 specific gravity. Some of these metals are essential micronutrients for plant growth (Such as Zinc (Zn), Copper (Cu), Manganese (Mn), Nickel (Ni) and Cobalt (Co)). Some other heavy metals, have a high toxicity properties such as Lead (Pb), Cadmium (Cd) and Mercury (Hg). In order to investigate the potential of watercress (Nasturtium officinale) in the uptake of elements from nutrient solutions with different salinities, a factorial experiment was conducted in a completely randomized design with three replications in the greenhouse. In this experiment, different levels of arsenic were zero, 5, 10, 20, 40, 40, 80 and 160 mg.L-1, which were obtained from sodium arsenate source and added to Epstein’s nutrient solution to obtain the mentioned concentrations. The salt concentration of the nutrient solution was 0, 10, 20, 40 and 80 mM which was prepared from sodium chloride source and added to Epstein solution. After making nutrient solutions with different salinity and concentrations, watercress was cultivated. The ANOVA results showed that the interaction of salinity and arsenic levels on the calcium, magnesium, iron, manganese, zinc and copper concentrations in watercress was significant at the level of one percent probability. The highest concentrations of these elements were obtained in the levels without salinity and arsenic and the lowest values were obtained in the 80 mM salinity levels and 160 mg.l-1 arsenic.

scholarly journals Nutritional status of coriander under fertigation depths and pulse and continuous drip irrigation

2020 ◽  
Vol 24 (6) ◽  
pp. 364-371
Author(s):  
Sirleide M. de Menezes ◽  
Gerônimo F. da Silva ◽  
Valentin R. Ó. Zamora ◽  
Manassés M. da Silva ◽  
Anna C. R. A. da Silva ◽  
...  
Keyword(s):  
Nutritional Status ◽  
Drip Irrigation ◽  
Block Design ◽  
Randomized Block Design ◽  
Zinc Concentrations ◽  
Calcium Magnesium ◽  
Iron Manganese ◽  
Nitrogen Phosphorus ◽  
Iron And Manganese ◽  
Continuous Drip

ABSTRACT The objective of this study was to evaluate the nutritional status of coriander cultivar Verdão under fertigation depths and pulse and continuous drip irrigation. The experiment was conducted in a protected environment at the Universidade Federal Rural de Pernambuco, Recife, PE, Brazil (8° 1’ 6.50” S, 34° 56’ 46” W and altitude of 6.5 m), in the randomized block design in 2 x 5 factorial scheme, with three repetitions. Treatments consisted of five irrigation depths (40, 60, 80, 100 and 120% of crop evapotranspiration - ETc) and two types of fertigation application (pulse and continuous). At 27 days after sowing, the aerial part of 48 plants per plot was collected for subsequent quantification of nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron, manganese, copper and zinc concentrations. Pulse fertigation combined with ETc replacement depths below 100% promoted higher leaf concentrations of phosphorus, sulfur, iron and manganese. Continuous fertigation combined with 100% ETc depth induced sulfur deficiency in the crop and, combined with 40% ETc depth, promoted the highest calcium concentration. Regardless of the type of application, ETc replacement depths from 82.7 and 40% provide adequate leaf concentrations of nitrogen and magnesium, respectively. Regardless of the applied depth, pulse fertigation reduced the leaf concentrations of magnesium.

Performance Evaluation of a Developed Dried Grass Shredding Machine for Composting

2021 ◽  
Vol 40 ◽  
pp. 73-82
Author(s):  
Patrick Okechukwu Ebunilo ◽  
Victor Eruero Atumah ◽  
Ejiroghene Kelly Orhorhoro
Keyword(s):  
Performance Evaluation ◽  
Organic Fertilizer ◽  
Arable Land ◽  
Research Work ◽  
Average Mass ◽  
Average Value ◽  
Manganese Zinc ◽  
Percentage Loss ◽  
Calcium Magnesium ◽  
Iron Manganese

In Nigeria Arable land covers approximately 745,000km2 of the total land area and at present organic farming is not prevalent, encouraged or facilitated despite its sustainability advantages. The anaerobic digestion process produces two main outputs (biogas and digestate). The digestate when properly harnessed can be used as a substitute for inorganic fertilizer. The digestate retains a high content of organic matter such as Nitrogen, Phosphorous and Potassium (K), as well as a range of other macro-and micronutrients like Calcium, Magnesium, Iron, Manganese, Zinc and ammonium. In this research work, a developed grass shredding machine for the composting of a digestate was evaluated for performance. Preliminary studies were undertaken to determine the liquid absorbability of non-shredded grass vise-visa dry shredded grass, the moisture content of fresh elephant and spear grass. An internal combustion powered shredding machine was developed to shred dry and sieve crushed grasses to be used as absorbent of digestate. The machine was evaluated for performance using different samples of properly dried elephant and spear grass. The shredded grasses samples were mixed with discharge digestate collected from a bio-digester to produce organic fertilizer. The shredding time, machine throughout capacity efficiency, mass of fibre and liquor were determined. The results of performance evaluation with elephant grass sample revealed that an average value of efficiency (90.97%), machine through put capacity (1.225g/sec), shredding time (126.54seconds), percentage loss (8.393%), fibre (288.58g) and liquor (119.83g) were established. Similar result were obtained with spear grass; efficiency (90.50%), machine through-put capacity (1.225g/sec), shredding time 126.54 seconds), percentage loss (8.32%), fibre (294.12g), and liquor (118.85g). The outcome of the results revealed that both solid fertilizer (fibre) and liquid fertilizer (liquor) were extracted from the digestate, and an average mass of 138.86g dried grass can absorb 269.55g of liquid digestate to produce organic fertilizer.

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