Last edited by Taramar
Wednesday, May 20, 2020 | History

2 edition of Influence of calcium cyanamide on root rot of maize found in the catalog.

Influence of calcium cyanamide on root rot of maize

J. N. Louw

Influence of calcium cyanamide on root rot of maize

by J. N. Louw

  • 107 Want to read
  • 11 Currently reading

Published in [Pretoria] .
Written in English

    Subjects:
  • Corn root rot.,
  • Calcium cyanamide.

  • Edition Notes

    Statement[by] J. N. Louw.
    Classifications
    LC ClassificationsSB608.M2
    The Physical Object
    Pagination139 l.
    Number of Pages139
    ID Numbers
    Open LibraryOL4534792M
    LC Control Number77000529

    The purpose of this literature review is to focus on the role of calcium hydroxide in the field of endodontics including a brief explanation of its mechanism of action, anti-microbial effects, different applications, cytotoxicity or biocompatibility, and finally removal of calcium hydroxide from the root canals. 2. Materials and Methods An File Size: KB. ture within crop’s root zone and its linkage to the amount of water applied is very important as it will optimise the efficient use of water and reduce yield losses. The aim of this study was to evaluate the spatial redistribution of soil moisture within maize roots zone under different ir- File Size: KB.

    A comparative study on the nematicidal and herbicidal properties of of calcium cyanamide [CaNCN] and cyanamide [H response to calcium cyanamide treatments. Root populations of the reniform nematode were A greenhouse study was conducted to compare the nematicidal and herbicidal properties of calcium and hydrogen cyanamide. Once you know the calcium and magnesium content of your irrigation water, it is easy to tailor a fertilizer regimen for your specific conditions. For those of us in Florida with highly alkaline, high calcium and magnesium deficient water, fertilize with equal parts of a balanced fertilizer like 20 .

    exogenous calcium was not a determining factor; in moist air, without an external supply of calcium, root hairs developed very well. In maize roots cultured in humid air without applied calcium, some roots produce no hairs at all and the presence or absence of a hairy zone is not related to root growth (Jaunin and Hofer, ). ABSTRACTS: Stalk rot of maize caused by E chrysanthemi pv. chrysanthemi is one of the most destructive disease in several maize growing regions of India. Most of the maize hybrids and composite released in the country as well as local varieties have been found highly susceptible to Size: 98KB.


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Influence of calcium cyanamide on root rot of maize by J. N. Louw Download PDF EPUB FB2

Calcium cyanamide is the inorganic compound with the formula CaCN is the calcium salt of the cyanamide (CN 2− 2) chemical is used as fertilizer and is commercially known as was first synthesized in by Adolph Frank and Nikodem Caro (Frank-Caro process).Chemical formula: CaCN₂.

Phytotoxic cyanamide affects maize (Zea mays) root growth and root tip function: From structure to gene expression. and may then directly influence root elongation and root tip function. During the second phase, after 3 days of CA exposure, more pronounced post-effects of CA treatment by: Calcium Cyanamide is a chemical compound used in industrial agricultural fertilizers.

The fertilizer calcium cyanamide helps plants to reach high yields, thus maximizing profits for farmers. Calcium cyanamide (CaCN 2) has mostly been used as a nitrogen fertilizer for a long time.

However, some studies have found its fungicidal effect on the pathogens of the soilborne diseases. However, some studies have found its fungicidal effect on the pathogens of the soilborne : Huasai Simujide, Chen Aorigele, Chun-Jie Wang, Tian-Hua Zhang, Bai Manda.

Urea and calcium cyanamide (Table 2), are forms of N that, when applied to soil, are acted upon by enzymes in the soil to mineralize the N in them to NH 4 + ions. Once in the NH 4 + form and until nitrified to the NO 3 − ion form, the N in these two fertilizers is also sorbed to the CEC of the soil and is subject to the soil-erosion transport.

Influence of calcium cyanamide on root rot of maize book Influence of Calcium and Magnesium on Plant Growth Pisciotta (28), an Italian investigator, reports the analysis of 60 soils which show a wide variation in the lime-magnesia ratio, due to the variation in the lime content.

Patterson (25) found that magnesian lime, which is claimed to be poisonous, gave the highest yields. This pathogen is commonly associated with root and stalk rot of maize. The fungus can cause extensive infection of maize roots, but will not significantly affect plants under optimal conditions.

Very little is known about P. ambiguum on maize in South Africa, but it is regarded as an important part of the soilborne disease complex in other.

Maize' Receivedfor publication April 4, andin revised formJ JUNE S. LEE2, TIMOTHYJ. MULKEY, AND MICHAEL L. EVANS calcium movement across the root on metabolic energy, we examined 45Ca2+ movementacross roots pretreated for 90 min mmDNPor 1 mmKCN(TableII).

NeitherDNPnorKCNCited by: Depending on the calcium carbide content, the cyanamide reacts with water (moisture from air or soil) to produce acetylene and hydrated calcium oxide or calcium hydroxide.

Absorption of water during handling or storage of technical calcium cyanamide may cause explosion [Pieri, M. Chem. Abs. 46, ]. calcium cyanamide, therefore it cannot be considered a soil fumigant. A soil fumigant is a product that has a broad spectrum, destructive effect on soil life, including pathogens and on germinating seeds, including weeds.

Image 1: Calcium cyanamide provides control of soil-borne diseases, newly germinated weeds, and assists withFile Size: 1MB. A formulation of calcium cyanamide in the diet was not found to be carcinogenic in a two-year National Toxicology Program study in rats or mice. (4) Physical Properties The chemical formula for calcium cyanamide is CCaN 2, and its molecular weight is g/mol.

(5) Commercial grades of calcium cyanamide occur as grayish-black lumps of powder. effects of lime on the growth of specific types of roots little if any soil contamination (data not shown) and root caps of white clover and to resolve the influence of liming were observed in over 95% of the roots examined microscopi-cally (data not shown), suggesting little if any root damageCited by:   Now a new study by researchers at the John Innes Centre has discovered that calcium plays a key role in primary root development.

Using genetics. coupled to calcium availability. Solubility helps Many fruit and tuber crops such as apple and potato have a very narrow window for calcium uptake. Ninety per-Dr. Easterwood Calcium’s Role In Plant Nutrition Research shows soluble calcium fertilizer plays vital role in production of high-quality crops.

cent of the calcium taken up by potatoFile Size: 20KB. Two strains of Rhizobium leguminosarum bv. phaseoli and three other plant growth-promoting rhizobacteria (PGPR) were examined for the potential of maize and lettuce root colonization.

All of these strains were selected in vitro for their phosphate-solubilizing abilities. Maize and lettuce seeds were treated with derivatives of all strains Cited by: During an average period of growth, the root system of a single maize plant may exploit over cubic feet of soil and may absorb 35–50 gallons of water.

Depending on soil texture, the lateral spread of a mature root system may be 3–4 feet on all sides of the plant and typically penetrates to depths of 5–6 feet (Figure ), although Cited by: Global warming brings a series of problems, including the worsening of drought stress worldwide.

This paper aims to find optimal Calcium-using strategies in realistic events of drought stress. Maize seedlings were grown in solutions with differing Ca2+ concentrations, and PEG was used to simulate drought stress.

Several physiological indexes were measured to determine the effect of Calcium Author: Diwen Fan. Differences in isolation frequency of fungi involved in maize root rot, were determined in a crop rotation system where maize was rotated with soybeans, sunflowers and groundnuts.

Crop rotation had a significant effect on the isolation frequency of Thielavia ferricola, E. pedicellatum, F. Author: Elbé. Hugo. Calcium cyanamide is considered to be metabolized as follows [3, 4, 5]: NH After incorporation of calcium cyanamide by rabbits, increased levels of urea, uric acid, thiocyanate, ammonia and total nitrogen are detectable in the blood and urine [6].

Calcium cyanamide is excreted mostly as urea in. Root rot is particularly severe with continuous cropping of maize on sandy soil. There was clear evidence ofPythium spp.

being the main, cause of um spp. may contribute to root rot at a later stage in the growth of the crop. The parasitic root nematodesPratylenchus crenatus andTylenchorhynchus dubius wereCited by: 3. A calcium deficiency in cannabis plants is less common in outdoor soil grows than hydroponic or neutral-medium indoor grows.

A calcium deficiency will: Inhibit nutrient uptake at the roots. Calcium aids in the decomposition of organic matter at the root zone, facilitating nutrient absorption. Impede flower growth during peak florescence.Emergency phone number + Service hours: Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).-Maize is thought to have originated at least years ago in the highlands of Mexico, Peru, Ecuador, and/or Bolivia because of the great density of native forms found in the region.

There have been four principal and several minor theories regarding the origin of File Size: 5MB.