Chemical weed control in the Ord River Valley. 1. The oilseed crops : safflower and linseed

1964 ◽  
Vol 4 (15) ◽  
pp. 309 ◽  
Author(s):  
Rijn PJ van
Keyword(s):  
Weed Control ◽  
Iodine Value ◽  
Active Ingredient ◽  
Oil Content ◽  
River Valley ◽  
Portulaca Oleracea ◽  
Research Station ◽  
Oilseed Crops ◽  
North West

A range of herbicides was tested on the oilseed crops linseed and safflower at Kiberley Research Station on the Ord River in north-west Australia. Diuron and TCA were the most effective. Diuron at 0.75 and 1 Ib an acre active ingredient, applied pre-emergence, controlled the grasses Chloris spp. and Echinochloa colonum (L.) Link and pigweed, Portulaca oleracea L. without affecting linseed and safflower. TCA at 4 to 8 lb an acre active ingredient, applied pre-emergence, and at 4 lb an acre active ingredient, applied early post-emergence, controlled the above grasses without affecting safflower. On linseed, TCA can be applied at 4 to 8 lb an acre active ingredient as a pre-emergence or early post-emergence spray, but early post-emergence application reduces percentage oil content and iodine value of the seed.

Chemical weed control in the Ord River Valley. 3. Cotton

1964 ◽  
Vol 4 (15) ◽  
pp. 321
Author(s):  
Rijn PJ van
Keyword(s):  
Weed Control ◽  
Active Ingredient ◽  
Dry Season ◽  
River Valley ◽  
Research Station ◽  
Wet Season ◽  
Residual Action

Between 1960 and 1963, four preliminary experiments on herbicides for cotton were carried out at Kimberley Research Station. Diuron, applied pre-emergence at rates of 1/2-1 lb an acre active ingredient (a. i.), and dicryl, applied seven to ten days after emergence at rates of 3-6 lb an acre a. i., gave satisfactory weed control. Diuron, because of its longer residual action (six weeks in early wet season, two months or more in late wet and early dry season) is preferred, and is recommended as the standard herbicidal treatment for Ord River cotton crops.

The effect of time of planting and nitrogen fertilizer on yield attributes of Brassica oilseed crops in the Ord River Valley

1964 ◽  
Vol 4 (14) ◽  
pp. 206 ◽  
Author(s):  
DF Beech ◽  
MJT Norman
Keyword(s):  
Seed Yield ◽  
Nitrogen Fertilizer ◽  
Linear Response ◽  
Dry Matter ◽  
Oil Content ◽  
Oil Yield ◽  
Research Station ◽  
Maturation Period ◽  
Yield Attributes ◽  
Oilseed Crops

At Kimberley Research Station in the 1962 dry season, two varieties of Brassica ca.mpe.rtris and one of B. juncea were sown under irrigation at four dates from May 1 to July 2 with six nitrogen fertilizer treatments. Seed yield was reduced with later date of sowing. There was a small linear response to nitrogen fertilizer up to 80 lb an acre nitrogen. Applying half the nitrogen at sowing and half at budding showed no advantage over applying all the nitrogen at sowing. Oil content was also reduced with later date of sowing. Nitrogen fertilizer at the highest level reduced oil content slightly. Although seed and oil yield were highest at the first sowing, dry matter and nitrogen yield of tops were highest at the second sowing. The fall in seed and oil yield with later date of sowing appeared to be associated more with rising temperature during the seed maturation period than with general vegetative performance.

Chemical weed control in irrigation channels at the Kimberley Research Station, Western Australia

1963 ◽  
Vol 3 (10) ◽  
pp. 170 ◽  
Author(s):  
Rijin PJ van
Keyword(s):  
Weed Control ◽  
Western Australia ◽  
Active Ingredient ◽  
Research Station ◽  
Wet Season ◽  
Clitoria Ternatea ◽  
Irrigation Channels ◽  
Butterfly Pea ◽  
Brachiaria Mutica

In three trials at Kimberley Research Station between 1959 and 1962 the herbicides monuron and simazine were tested for the control of weeds in irrigation channels during the wet season. Monuron at 12-16 lbs an acre and simazine at 12 lb an acre active ingredient controlled (or killed) most weeds. More resistant weeds, such as Brachiaria mutica (Forsk.) Stapf. (para grass), Chionachne Hubbardiana Henr. and Clitoria ternatea L. (butterfly pea) required higher rates (up to 20 lb an acre active ingredient). Channels should be sprayed approximately a fortnight before sowing cotton and rice crops. The effectiveness of the treatments was increased by burning the weeds and delving the channels. Since cotton was found susceptible to simazine and rice was very susceptible to monuron, supply channels for cotton should be sprayed with monuron and channels for rice with simazine.

Responses of four soybean varieties to foliar zinc fertilizer

1981 ◽  
Vol 21 (109) ◽  
pp. 236 ◽  
Author(s):  
IA Rose ◽  
WL Felton ◽  
LW Banks
Keyword(s):  
Oil Content ◽  
Phosphorus Content ◽  
Zinc Concentration ◽  
New South ◽  
North West ◽  
Yield Increase ◽  
South Wales ◽  
Zinc Fertilization ◽  
Zinc Fertilizer ◽  
Fertilization Experiments

The soybean varieties Lee, Forrest, Bragg and Dodds were studied in zinc fertilization experiments at three sites in central and north-west New South Wales. At each site foliar sprays of ZnSO47H2O were applied before flowering. At Narrabri one spray of 4 kg ha-1 gave a yield increase of 13%. At Trangie and Breeza, two sprays each of 4 kg ha-1 increased yield by 57% and 208%, respectively. Lee was the least responsive variety at each site and Dodds or Forrest the most responsive to applied zinc. Zinc fertilizer increased plant height, foliar zinc concentration, oil content (at two sites) but decreased leaf phosphorus content. Leaf concentrations of phosphorus in untreated plots were indicative of varietal sensitivity to zinc deficiency both within and between sites. The yield increases at Narrabri were obtained even though no visual symptoms were observed. Improvement of soybean yields with zinc fertilizer in seemingly healthy crops is worthy of further investigation.

scholarly journals Physicochemical characterization of Jatropha oil seed and suitability as biodiesel feedstock

2020 ◽  
Vol 7 (3) ◽  
pp. 581-586
Author(s):  
Aparna Yadav ◽  
◽  
Sudhakar Prasad Mishra ◽  
P. S. Kendurkar ◽  
Ajay Kumar ◽  
...  
Keyword(s):  
Iodine Value ◽  
Jatropha Curcas ◽  
Oil Content ◽  
Cetane Number ◽  
Physicochemical Characterization ◽  
Acid Value ◽  
Mean Value ◽  
Plant Seed ◽  
Saponification Value ◽  
Plant Seed Oil

The physiocochemical properties of Jatropha curcas kernel oils were characterized as potential biodiesel, including oil yield per plant, seed oil content, kernel oil content, acid value, iodine value, saponification value and cetane number. Twenty-five accessions of Jatropha curcas were used for oil content measurement sranging from 21.14 to 40.66 %with a mean value of 32.85% and Kernels oil 48.59 to 60.45 % with a mean value of 56.28 %. The seed index ranged significantly from a seed weight of 45.45 to 64.45 g. Oil yields per plant ranged from 0.44 to 2.85 kg with a mean value of 1.70 kg per plant, respectively. To understand the properties of acid value, iodine value, saponification and cetane number, experimental physio-chemical studies were performed. Since these properties are critical for determining the current oil condition. The current study confirms that accession seeds performed higher than international saponification value, iodine value and cetane number standards may be an important source for meeting potential energy requirements.

Investigating the Effects of Major Ecological Factors on Essential Oils and Existing Chemical Compounds of Nepeta menthoides in Habitat Conditions

2015 ◽  
Vol 16 (SE) ◽  
pp. 457-459
Author(s):  
Mozhgan Omidi ◽  
Ali Akbar Imani
Keyword(s):  
Essential Oils ◽  
Standard Condition ◽  
Ecological Factors ◽  
Chemical Compounds ◽  
Hot Water ◽  
Research Station ◽  
Natural Habitats ◽  
Water Steam ◽  
North West ◽  
Specific Species

A native Iranian plant, Nepeta menthoides, located and distributed in the north west of Iran, is a gramineous, perennial plant species which belong s to mint family. Highlands of Sabalan Mountain, in Ardebil province, Shabil and Gotur Suyi regions are habitats for this specific species. This study enjoys samples collected from selective habitats in the stage of 50% flowering; moreover, the collected samples were dried in an appropriate and standard condition. Abooreyhan laboratory of Jungle and Pasture research institute was the place in which the above mentioned samples have undergone the process of essential oils, using the water steam method of distillation. The extracted components were gauged and identified by means of gas chromatography system connected to mass spectrograph. The results of the study distinctly indicated that in the habitat condition, the species grows in the highlands of Sabalan Mountain over the attitude of 3200 to 4000 meters, this specific species is highly visible in series and sandy clay hills, it is demonstrated that the density of the species has been increased as the height was increasing. Essential oil in the investigated area was ranging from 1.6% to 2.40%, admittedly, the least amount was in Gotur Suyi, while, the highest amount belonged to Shabil. Nineteen  chemical compounds were identified in samples collected from natural habitats, amongst all, the highest proportion belongs to 8,10-Cineole and Citronellol acetate.8,10- Cineole was ranging from 33 to 34 percent, the least amount was identified in Gotur Suyi region (before hot water spa) and the highest amount was observed between Gotur Suyi and Shabil. As mentioned earlier, Citronellol acetate was the second chemical compound, which was ranging from 16% to 31% and the least and the highest amount were known in Gotur suyi and Shabil, respectively. Samian medicinal plants research station possesses the highest level with the value of 57%.

scholarly journals Pleistocene Geology of the South-West Yukon Territory, Canada

1965 ◽  
Vol 5 (40) ◽  
pp. 385-397 ◽  
Author(s):  
Daniel B. Krinsley
Keyword(s):  
Yukon Territory ◽  
River Valley ◽  
The South ◽  
North West ◽  
White River ◽  
North East ◽  
South West ◽  
M 12

Abstract A morainal sequence in south-west Yukon Territory, Canada, records at least four major, successively less extensive glaciations from ice fields in the St. Elias Mountains south of the glaciated area. The Nisling Moraine flanks the Klondike Plateau in a belt t km. wide to an altitude of 1,040 m., 12 km. north-east of Snag. The northernmost lobe of this moraine terminates at the junction of the Donjek and White Rivers, 120 km, from the nearest source of ice, Klutlan Glacier. 11 km. north-east of Snag, the prominent front of the Donjek Moraine lies 180 m. below the front of the Nisling Moraine. The northernmost lobe of the Donjek Moraine terminates 106 km. north of Klutlan Glacier and occupies the lower courses of canyons cut into the Nisling Moraine. The front of the Snag Moraine crosses the White River valley 210 m. below the front of the Donjek Moraine and 96 km. north of Klutlan Glacier. The Tchawsahmon Moraine, 38 km. north-west of Klutlan Glacier. consists of a series of concentric ridges, the oldest of which impounded Tchawsahmon Lake. Provisional correlations suggest that the Nisling Moraine is pre-Illinoian; the Donjek, Illinoian; the Snag, pre-classical Wisconsin; and the Tchawsahmon, classical Wisconsin.

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