SHORT COMMUNICATION: Herbicides in surface runoff and groundwater under surface irrigation in southern Alberta

1995 ◽  
Vol 75 (1) ◽  
pp. 145-148 ◽  
Author(s):  
J. J. Miller ◽  
N. Foroud ◽  
B. D. Hill ◽  
C. W. Lindwall
Keyword(s):  
Key Words ◽  
Surface Runoff ◽  
Short Communication ◽  
Surface Irrigation ◽  
Groundwater Samples ◽  
Southern Alberta

In 1991, up to 38 g L−1 hexazinone was found in 50% of surface runoff and 27% of groundwater samples at Lethbridge. No herbicides were detected in surface runoff from irrigation at Taber, but 2,4-D, bromoxynil, dicamba, mecoprop, MCPA and diclofop were found in 48, 34, 21, 16, 13 and 9%, respectively, of groundwater samples, and bromoxynil exceeded the Canadian drinking guideline (5.0 μg L−1) in 11% of samples. Key words: Herbicides, surface irrigation, surface runoff, groundwater

SHORT COMMUNICATION: Difficulties in using 137Cs to measure erosion in stubble-mulched soil

1995 ◽  
Vol 75 (3) ◽  
pp. 357-359 ◽  
Author(s):  
E. Bremer ◽  
H. H. Janzen ◽  
E. de Jong
Keyword(s):  
Soil Erosion ◽  
Key Words ◽  
Short Communication ◽  
Crop Rotations ◽  
Present Evidence ◽  
Southern Alberta ◽  
Communication Difficulties ◽  
Cesium 137

Soil erosion may be difficult to quantify from redistribution of 137Cs at sites where stubble-mulch techniques were adopted prior to 137Cs deposition, because appreciable 137Cs may have been transported before it was mixed into the soil Ap layer. We present evidence that this occurred in two long-term cropping experiments in southern Alberta. Key words: Cesium-137, tillage, long-term crop rotations, fallow

SHORT COMMUNICATION: Elemental content of animal licks along the eastern slopes of the Rocky Mountains in southern Alberta, Canada

1996 ◽  
Vol 76 (4) ◽  
pp. 509-512 ◽  
Author(s):  
J. F. Dormaar ◽  
B. D. Walker
Keyword(s):  
Hydrogen Peroxide ◽  
Key Words ◽  
Rocky Mountains ◽  
Short Communication ◽  
Landscape Management ◽  
Elemental Content ◽  
Rock Face ◽  
Southern Alberta ◽  
Sodium Magnesium ◽  
Salt Licks

A number of animal licks, representing dry earth exposures, muck licks, and rock face licks, were sampled and analysed for 12 elements by using a sulphuric acid-hydrogen peroxide method to simulate digesta. The various types of licks may serve different needs. Sodium, magnesium, manganese, iron, and copper may draw animals to specific sites. Key words: Salt licks, ungulates, landscape management, Rocky Mountains

scholarly journals Asexual Propagation of Eggplant (Solanum melongena L.) through Encapsulated Axillary Buds

1970 ◽  
Vol 19 (2) ◽  
pp. 263-288 ◽  
Author(s):  
A.K.M. N. Huda ◽  
, M.A. Bari ◽  
M. Rahman
Keyword(s):  
Key Words ◽  
Plant Tissue ◽  
Short Communication ◽  
Solanum Melongena ◽  
Axillary Buds ◽  
Synthetic Seed ◽  
Asexual Propagation

 Key words: Auxillary buds, Eggplant, Encapsulation, Synthetic seed D.O.I. 10.3329/ptcb.v19i2.5445 Plant Tissue Cult. & Biotech. 19(2): 263-288, 2009 (December)       - Short communication

Residue detections in soil and shallow groundwater after long-term herbicide applications in southern Alberta

1995 ◽  
Vol 75 (3) ◽  
pp. 349-356 ◽  
Author(s):  
J. J. Miller ◽  
B. D. Hill ◽  
C. Chang ◽  
C. W. Lindwall
Keyword(s):  
Drinking Water ◽  
Key Words ◽  
Level Set ◽  
Water Samples ◽  
Shallow Groundwater ◽  
Herbicide Residues ◽  
Southern Alberta

After herbicide applications for 1–24 yr, there were no detectable residues of glyphosate, dicamba, 2,4-D, bromoxynil or methylchlorophenoxyacetic acid (MCPA) in soil at two long-term tillage sites and one long-term manured site. The only detectable residues in soil were of diclofop and triallate. Residues of bromoxynil, diclofop and MCPA but not dicamba, 2,4-D or triallate, were detected in the groundwater at the manured site. Diclofop was detected in 6% and bromoxynil and MCPA in 2% of 84 water samples collected at the manured site. Maximum concentrations of bromoxynil (6.5 μg L−1) and diclofop (47 μg L−1) in the groundwater at the manured site exceeded levels set by the Canadian drinking water guidelines. Long-term application of herbicides has not caused accumulation of harmful residues in southern Alberta soils, but the presence of certain herbicides in the groundwater at concentrations above the level set by the drinking water guidelines is cause for concern. Key words: Herbicide residues, tillage, manure, soil, groundwater

SHORT COMMUNICATION: Persistence of imazethapyr in two Atlantic Canada soils

1995 ◽  
Vol 75 (4) ◽  
pp. 525-527 ◽  
Author(s):  
K. I. N. Jensen ◽  
J. A. Ivany ◽  
R. R. King
Keyword(s):  
Key Words ◽  
Half Life ◽  
Short Communication ◽  
Limit Of Detection ◽  
Atlantic Canada ◽  
Soil Persistence ◽  
Rotation Crops ◽  
One Year

The half-life of imazethapyr in two Atlantic Canada soils ranged from 19 to 63 d. Soil incorporation increased persistence but residual levels reached or approached the limit of detection (< 5 ng g−1 soil) within 120 d after application of 75 g ha−1 imazethapyr. Sensitive rotation crops were not affected by 75 g ha−1 imazethapyr one year after application. Key words: Imazethapyr, soil persistence, carryover, half-life

SOIL AND SUBSOIL MOISTURE ACCUMULATION DUE TO DRYLAND AGRICULTURE IN SOUTHERN ALBERTA

1985 ◽  
Vol 65 (4) ◽  
pp. 805-810 ◽  
Author(s):  
H. W. CHRISTIE ◽  
D. N. GRAVELAND ◽  
C. J. PALMER
Keyword(s):  
Soil Moisture ◽  
Key Words ◽  
Causative Agent ◽  
Salt Content ◽  
Cultivated Land ◽  
Soluble Salts ◽  
Dryland Agriculture ◽  
Dryland Salinity ◽  
Native Prairie ◽  
Southern Alberta

Subsoil moisture accumulation due to cultivation and particularly summerfallowing is considered as an important causative agent of dryland salinity. However, few studies have been conducted to quantify the magnitude of this accumulation. The amount of additional moisture that had accumulated under cultivated land as compared to adjacent native prairie was determined at two sites in Southern Alberta. In comparison to noncultivated sites, a total of 74.0 cm of additional moisture was found under the cultivated area of a Dark Brown Chernozem and 36.2 cm under a Brown Chernozem to a depth of 6 m. Only relatively insignificant changes in salt content were found. Key words: Dryland salinity, soil moisture, soluble salts

SHORT COMMUNICATION: Resin-based extractor for multiple-element determinations of availability in soils

1994 ◽  
Vol 74 (4) ◽  
pp. 461-463 ◽  
Author(s):  
Alan Olness ◽  
Jana Rinke
Keyword(s):  
Key Words ◽  
Anion Exchange ◽  
Short Communication ◽  
Exchange Resin ◽  
Anion Exchange Resin ◽  
Dialysis Tubing ◽  
Resin Beads

Multi-element extractors were prepared by encasing cation and anion exchange resin beads in dialysis tubing. Extractors were inserted in soil suspensions, equilibrated for 168 h and eluted with 0.1 M HNO3. Eluted volumes were adjusted to 1.2 M in HCl, diluted to volume and directly analyzed using ICP methods. Key words: Extraction, resin, soil

scholarly journals Vacuolar Na+/H+ Antiporter Expression and Salt Tolerance Conferred by Actin1D and CaMV35S are Similar in Transgenic Binnatoa Rice

1970 ◽  
Vol 19 (2) ◽  
pp. 257-262 ◽  
Author(s):  
S.M. Touhidul Islam ◽  
Zeba I. Seraj
Keyword(s):  
Salt Tolerance ◽  
Transgenic Plant ◽  
Key Words ◽  
Plant Tissue ◽  
Short Communication ◽  
Rt Pcr ◽  
Ion Imbalance

Key words:  RT-PCR, ion imbalance, Binnatoa, transgenic plant  D.O.I. 10.3329/ptcb.v19i2.5444 Plant Tissue Cult. & Biotech. 19(2): 257-262, 2009 (December)       - Short communication

scholarly journals Genetic code research: a precognition result (I)

2021 ◽  
Author(s):  
Miloje M. Rakočević
Keyword(s):  
Genetic Code ◽  
Key Words ◽  
Short Communication ◽  
The Status

This short communication reveals that the final result of my 40 years of research into the genetic code has the status of a prediction in the sense that it was seen in one of my dreams 75 years ago. The text published on my website (www.rakocevcode.rs) seven years ago, at a time when I could not know the final result, is attached as evidence [Key words: san i java]. At the same time, the idea is presented that both the result and its precognition could be in line with Jung-Pauli's hypothesis of synchronicity.

SHORT COMMUNICATION: Exchange of 15N among plants in controlled environment studies

1994 ◽  
Vol 74 (1) ◽  
pp. 109-110 ◽  
Author(s):  
H. H. Janzen ◽  
C. Gilbertson
Keyword(s):  
Key Words ◽  
Nitrogen Fertilizer ◽  
Short Communication ◽  
Controlled Environment ◽  
Atmospheric Ammonia ◽  
Atmospheric Exchange ◽  
Selection Of ◽  
Air Exchange

Barley receiving unlabelled nitrogen fertilizer was grown among treatments receiving Ca(15NO3)2 fertilizer (5 atom %) in a growth cabinet with high air exchange and in a greenhouse. In both environments, the unlabelled plants and soil were significantly enriched with 15N, apparently, in part, by foliar exchange of atmospheric ammonia. This exchange may warrant consideration in the selection of appropriate controls for 15N calculations. Key words:15N, ammonia, atmospheric exchange

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