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Articles 31 - 33 of 33
Full-Text Articles in Fresh Water Studies
Experimental Summary 1979, J R. Peirce
Experimental Summary 1979, J R. Peirce
Experimental Summaries - Plant Research
Contents 79ME28 Soursob (Oxalis caprae) control along Roadsides. 79NO30 A & B.
79NO29 Pre and post emergent applications of Diuron for soursob control in cereals.
79ME31 Post emergent control of soursob in cereals. 79NO39
79ME26 A & B Control of Matricaria (Pentzia sp.) in cereals.
79NO40 Dormancy of Cape Tulip (homeria sp.).
79NO38 Patersons curse (Echium plantagineum) Control in pastures. Afghan thistle (solanum hoplopetalum) Control in pastures. 79ME28 and 79N030 A & B Soursob Control Along Roadsides. Chemicals: Roundup 1, 2 and 3 1ha-1, Diuron 1, 2 and 3 1ha-1, Sencor TD 1, 2 and 3 kgha -1 ) applied …
Investigations Of Ryegrass Toxicity, B A. Stynes
Investigations Of Ryegrass Toxicity, B A. Stynes
Experimental Summaries - Plant Research
Development of toxicity in the field. Experiment – 79KA13. Location – C. Butterworth, Katanning. The effect of herbicides and growth regulants on gall development. Experiment – 79KA14. Location - C. Butterworth, Katanning. Effect of burning on the production of galls. Experiment – 79KA9. Location - L. Blight, Gnowangerup; K. Butterworth, Katanning; C. Hanna, Katanning; J. Shepherdson, Gnowangerup. Table 1 Previous land use and characteristics of fires at four farms where fields were burnt in autumn to reduce the level of toxicity of ryegrass in the subsequent spring pasture. Table 2 The numbers and relative proportions of galls retained in the …
Potential Use Of Hydroelectric Facilities For Manipulating The Fertility Of Lake Mead, Larry J. Paulson, John R. Baker, James E. Deacon
Potential Use Of Hydroelectric Facilities For Manipulating The Fertility Of Lake Mead, Larry J. Paulson, John R. Baker, James E. Deacon
Publications (WR)
Analysis of historical nutrient data for Lake Mead indicates that the fertility of the reservoir has decreased which may be the cause for a corresponding decline in the largemouth bass population. However, it appears that fertility can be manipulated by altering the operation of the dam. The depletion of nutrients in the euphotic zone by phytoplankton and subsequent accumulation in the hypolimnion during summer and fall provide a natural nutrient gradient from which water of varying fertility can be drawn for discharge. This combined with alterations in the depth or seasonal pattern of discharge can possibly be used to enhance …