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Agronomy and Crop Sciences

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1991

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Full-Text Articles in Life Sciences

Lupin Logic Number 17 Dec 1991

Lupin Logic Number 17

Lupin Logic

Contents

A world record? 25 years of lupin/wheat rotation

Gungurru stubbles provide good feed for weaner sheep

Seed testing

Marketing campaign

Pool payments 1991/92


Lupin Logic Number 16 Nov 1991

Lupin Logic Number 16

Lupin Logic

Contents

Wallace Cowling heads lupin breeding

Lupin harvesting tips

Lupin book reprinted

What happened to the native budworm?

Seed testing

Marketing campaign

Your help is needed


Lupin Logic Number 28 Nov 1991

Lupin Logic Number 28

Lupin Logic

Contents

What - No Pods?

Yield potential of lupins and wheat

Avoiding harvest losses

Lupin row spacing

Reminders

Pool payments 1992/93


Lupin Logic Number 15 Oct 1991

Lupin Logic Number 15

Lupin Logic

Contents

Where have all the flowers gone?

Seed testing a must

38,000 tonnes of lupins fed to pigs

Merrit - new lupin release

Memory jog


Lupin Logic Number 14 Sep 1991

Lupin Logic Number 14

Lupin Logic

Contents

Stubble length after harvest

1990/91 Pool payments

Budworm threatens crops

Spraying for aphids?

Lupn Logic feedback

Things to do


Revegetation Guide To The Central Wheatbelt, E C. Lefroy, R J. Hobbs, L J. Atkins, Department Of Agriculture And Food, Western Australia, Csiro, Division Of Wildlife And Ecology Sep 1991

Revegetation Guide To The Central Wheatbelt, E C. Lefroy, R J. Hobbs, L J. Atkins, Department Of Agriculture And Food, Western Australia, Csiro, Division Of Wildlife And Ecology

Bulletins 4000 -

The rapid development of the central wheatbelt for agriculture over the past century has produced a productive farming landscape, but one which is increasingly subject to degradation. Erosion, salinization, declining soil structure, waterlogging and acidification are all symptoms of this degradation and causes of lost agricultural production. In addition, most of the native vegetation and many of the native animals have disappeared, and the natural heritage of the area resides in small scattered patches that together make up only seven per cent of the wheatbelt region.

Many farmers now recognize that replanting trees and shrubs is an effective means of …


Review Of The Wild Oat Inflorescence And Seed: Anatomy, Development And Morphology, M. V. S. Raju, David M. Sutherland Aug 1991

Review Of The Wild Oat Inflorescence And Seed: Anatomy, Development And Morphology, M. V. S. Raju, David M. Sutherland

Biology Faculty Publications

This slim volume describes a detailed study of the reproductive parts of Avena fatua, the wild oat plant-a common weed in the northern plains and the probable ancestor of the cultivated oat. The book integrates the author's own work with information from available literature and includes lengthy technical descriptions of the structure and the growth of the inflorescence, the floret, the ovule, the pollen grain, the embryo, the seed, and the young seedling. Throughout the work, the author relates the wild oat's structure and development to other grasses, other monocotyledons, and other seed plants, offering evolutionary interpretations of many of …


Lupin Logic Number 13 Aug 1991

Lupin Logic Number 13

Lupin Logic

Seasonal reminders

Rethinking aphid control

- CMV and agronomic practices

- Bean yellow mosaic virus (BYMV)

- Resistance to insectisides

- Resistance monitoring

- Research continues

- When should aphids be sprayed

- What to spray with

- Application

World plant protien market

Manganese tissue testing

New seed testing service


Timing Of Nitrogen Fertilizer Application For Cereals, M G. Mason Aug 1991

Timing Of Nitrogen Fertilizer Application For Cereals, M G. Mason

Division of Plant Research : Technical Report Series

Results are presented for 206 trials carried out between 1959 and 1990, investigating the effect of time of application of nitrogen fertilizers on cereal grain yields. This set of data is the basis of recommendations made for timing of nitrogen fertilizer application for cereals in Western Australia. Attention is drawn to the variability of results obtained in different seasons and situations and the time of leaching rains.


Proceedings International Sorghum And Millet Crsp Conference, Timothy Schilling, Gary Odvody, Gebisa Ejeta, Larry Claflin, Gary Peterson, Lloyd Rooney, Jerry Eastin, Joan Frederick Jul 1991

Proceedings International Sorghum And Millet Crsp Conference, Timothy Schilling, Gary Odvody, Gebisa Ejeta, Larry Claflin, Gary Peterson, Lloyd Rooney, Jerry Eastin, Joan Frederick

INTSORMIL Impacts and Bulletins

On behalf of the INTSORMIL Board of Directors, Principal Investigators and the Management Entity Office, it gives me great pleasure this moming to welcome you to this opening session of the 1991 INTSORMIL International SorghumIMlllet CRSP Conference.

INTSORMIL initiated the Biennial CRSP conference series in 1983. Attendance has grown with each meeting. Today we have 199 persons registered from 12 States in the U.S. and 27 different countries. There are representatives from three International Agricultural Research Centers (lCRISAT, IFPRI, and ICRISAT), four private seed companies and the U.S. National Grain Sorghum Producers Association (NGSPA).

I look around this audience and …


Lupin Logic Number 12 Jul 1991

Lupin Logic Number 12

Lupin Logic

Contents

A job well done

Value added lupins

Lupins for the heavier soils

- European white lupin

Feedback on Lupin Logic

First 1991 CMV report

Lupin grants


Hybrid Variation For Yield, Crude Protein, And Feed Value Of Corn, Z. Hu, C. G. Poneleit, K. O. Evans, Michael Collins, D. O. Liptrap Jul 1991

Hybrid Variation For Yield, Crude Protein, And Feed Value Of Corn, Z. Hu, C. G. Poneleit, K. O. Evans, Michael Collins, D. O. Liptrap

Agronomy Notes

The value of corn as a feed grain depends on the yield per acre, the protein content of the grain, and for some livestock, the lysine level of the protein. Most farmers are aware of yield differences among hybrid corn varieties but may not realize that protein content can also vary significantly. Grain protein level should be accounted for to determine how much protein supplementation will be needed to balance an appropriate animal diet. However, since corn protein is deficient in the amino acid lysine, which is essential for non-ruminant animals, lysine content as well as crude protein content should …


Lupin Logic Number 11, Peter Nelson Jun 1991

Lupin Logic Number 11, Peter Nelson

Lupin Logic

Contents

Don't be part of the silent majority

Post emergent weed control in lupins

Middle East market

Early insect attack

- Red-legged earthmite and lucerne flea

- Cutworm

- Brown pasture loopers

- Bean root maggot fly


Grass Control In Corn With Accent And Beacon, W. W. Witt, Charles H. Slack, James R. Martin, Jonathan D. Green, M. A. Thompson May 1991

Grass Control In Corn With Accent And Beacon, W. W. Witt, Charles H. Slack, James R. Martin, Jonathan D. Green, M. A. Thompson

Agronomy Notes

The traditional method for grass control in corn is based on using herbicides applied to soil and incorporated before planting or to the soil surface after planting. This approach has been successful in controlling crabgrass, fall panicum and foxtails, but johnsongrass and shattercane control was sometimes inadequate.


Lupin Logic Number 10, Peter Nelson May 1991

Lupin Logic Number 10, Peter Nelson

Lupin Logic

Contents

Extension at its best

Pleiochaeta setosa

- Rotation

- Sowing date

- Stubble mulching

- Sowing depth

- Seeding implement

- Seeding rate

- Tillage

- Fungicides

- Nutrition

Bemused by brand names?

- Simazine tolerance in lupis

- Stop start simazine


Nitrogen Fertilizer Use By A High Yielding No-Till Corn Crop, Kenneth L. Wells, H. B. Rice, William O. Thom Apr 1991

Nitrogen Fertilizer Use By A High Yielding No-Till Corn Crop, Kenneth L. Wells, H. B. Rice, William O. Thom

Agronomy Notes

At the present time there is public concern about the effect which nitrogen (N) fertilizer use by farmers has on groundwater quality. This has resulted in research efforts to describe what happens to nitrogen fertilizer after it is applied to a crop. We have conducted a study for the past 3 years which enables us to make a reasonable estimate of how much fertilizer N is taken up by a high yielding corn crop. And, depending on whether the corn is harvested for silage or grain, we have estimated how much of the fertilizer N is removed from the field. …


Lupin Logic Number 9, Peter Nelson Apr 1991

Lupin Logic Number 9, Peter Nelson

Lupin Logic

Contents

Ready to go?

Superphosphate placement - is it for you?

When should I plant?

Italian market re-established


1990 Kentucky Winter Annual Legume Variety Test, L. M. Lauriault, Norman L. Taylor, Jimmy C. Henning, W. T. Edmonson Mar 1991

1990 Kentucky Winter Annual Legume Variety Test, L. M. Lauriault, Norman L. Taylor, Jimmy C. Henning, W. T. Edmonson

Agronomy Notes

Cover crops are often used in Kentucky following the harvest of row crops such as tobacco, corn, and soybeans. Living cover crops can prevent erosion, reduce leaching of nutrients, and supply grazing, green manure, or a plant cover in which to no-till the following spring.


Curling Burley Tobacco From An Automated Harvesting System, Linus R. Walton, Larry G. Wells, James H. Casada Mar 1991

Curling Burley Tobacco From An Automated Harvesting System, Linus R. Walton, Larry G. Wells, James H. Casada

Biosystems and Agricultural Engineering Faculty Publications

If burley tobacco can be successfully cured at high density under waterproof covers in the field, a producer can expand production without the necessity of building new curing barns and can thereby more easily justify investment in the automated burley tobacco harvesting system (Wells et al., 1990a, b). Curing under waterproof covers in the field and curing on frames in the barn were evaluated over three curing seasons using two varieties (KY 14 and TN 86), two plant densities (32 and 43 plants/m2, 3 and 4 plants/ft2), position of tobacco on the frame (four levels ranging …


Lupin Logic Number 8, Peter Nelson Mar 1991

Lupin Logic Number 8, Peter Nelson

Lupin Logic

Contents

100 litres of seed lupins per hectare?

Non wetting soils

- Solutions

Manganese and lupins

- Control options

- Agronomy

- Further reading

Market outlook

1990/91 Pool payments


Basic Alfalfa Germplasms Differ In Nutritive Content Of Forage, Andrew W. Lenssen, E. L. Sorensen, G. L. Posler, L. H. Harbers Mar 1991

Basic Alfalfa Germplasms Differ In Nutritive Content Of Forage, Andrew W. Lenssen, E. L. Sorensen, G. L. Posler, L. H. Harbers

Andrew W. Lenssen

Little information is available regarding comparative forage quality of alfalfa (Medicago sativa L.) leaves and stems of the nine germplasms from which most North American cultivars have been developed. In a greenhouse trial, forage quality of leaves and stems of the nine germplasms was compared when grown in a common environment and harvested at the same phenological stage. Germplasm sources (and representative cultivar) tested were: Indian (Sirsa #9), African (African), Peruvian (Hairy Peruvian), Flemish (DuPuits), Turkistan (Lahontan), Chilean (Kansas Common), M. varia Martin (Grimm), Ladak (Ladak), M. falcata L. (Anik). Leaves of germplasm sources differed for concentrations of neutral detergent …


Lupin Logic Number 7, Peter Nelson Feb 1991

Lupin Logic Number 7, Peter Nelson

Lupin Logic

Contents

On target for 1991?

Recievals lower than expected

Japan re-establishes No. 1 market status

World protien market

Cropping options - Strategies for 1991

1990/91 Pool payments


1990 Kentucky Red Clover Variety Test, L. M. Lauriault, Norman L. Taylor, Jimmy C. Henning, W. T. Edmonson Feb 1991

1990 Kentucky Red Clover Variety Test, L. M. Lauriault, Norman L. Taylor, Jimmy C. Henning, W. T. Edmonson

Agronomy Notes

Red clover is a high quality, shortlived perennial legume that is used in mixed or pure stands for pasture, hay, silage, green chop, and soil improvement. This species is adapted to a wide range of climatic and soil conditions and therefore is very versatile as a forage crop. Stands are generally productive for two or three years with the highest yields occurring in the year following establishment. Red clover is used primarily as a renovation legume for grass pastures. It is the dominant legume in Kentucky because it is high in seedling vigor, quality, yield, and animal acceptance.


Soil Science Research Report - 1991 Jan 1991

Soil Science Research Report - 1991

Soil Science Research Reports

Climate Weather Data Collection Points .......... 1

Weather Data 1991 Reported from Research Centers .......... 2

Flow of Water and Particles in Soils and Porous Media (D. Swartzendruber) .......... 9

Soil Respiration in Ridge Till (M. A. Liebig, A. J. Jones, J. W. Doran, and L. N. Mielke) .......... 11

Wheel Traffic Effects on Soil Properties in Ridge Till (M. A. Liebig, A. J. Jones, L. N. Mielke, and J. W. Doran) .......... 15

Fallout Cesium - 137 to Assess Soil Erosion (T. Oztas, A. J. Jones, L. N. Mielke and R. Grossman) .......... 21

Response of Wheat to Phosphorus …


Origin And Evolution Of Defective Interfering Rnas Of Tomato Bushy Stunt Virus, David A. Knorr, Thomas Jack Morris Jan 1991

Origin And Evolution Of Defective Interfering Rnas Of Tomato Bushy Stunt Virus, David A. Knorr, Thomas Jack Morris

School of Biological Sciences: Faculty Publications

Viruses with defective genomes have been identified in association with virtually every major family of viruses and have been widely utilized as tools for investigating virus functions in animal cell culture systems (Perrault, 1981). It is generally thought that defective interfering viruses (DIs) arise through deletion, rearrangement, or recombination of a competent viral genome. DIs tack the ability for independent existence relying on their parental helper viruses to supply factors required for replication, maturation, and/or encapsidation (Huang and Baltimore, 1977). The interference attributed to DIs is thought to result from competition with the helper virus for factors required in trans …


Development Of Procedures To Determine The Fertilizer Requirements Of Annual Pasture Legumes Grown In Cereal Cropping Systems., B. H. Paynter Jan 1991

Development Of Procedures To Determine The Fertilizer Requirements Of Annual Pasture Legumes Grown In Cereal Cropping Systems., B. H. Paynter

Experimental Summaries - Plant Research

Trials 88ME67, 88SC17, 90ME1 and 90ME2

Location: Merredin

To determine the phosphate (P) fertilizer requirements of burr medic on marginally acidic, medium textured soils and yellow serradella on acidic, light textured soils.

Trials 89ME52, 89ME55 and 86ME61

Location: Merredin

Determine the response of yellow serradella and burr medic to residual phosphate and freshly applied phosphate.

Trials 89ME50, 89ME54, 88ME67, 88SC17, 89ME60

Location: Merredin.

To measure the influence of different levels of pasture productivity (generated by different levels of P supply) and the different pasture legumes on subsequent wheat crops.


Tree Crops For Profit And Land Improvement, John Bartle Jan 1991

Tree Crops For Profit And Land Improvement, John Bartle

Journal of the Department of Agriculture, Western Australia, Series 4

Western Australian agriculture is deficient in good perennial species. The traditional segregation of agriculture and forestry has diverted attention from commercial wood producing trees as a potential perennial crop. Recently, scientists have made rapid progress in developing tree cropping systems suitable for extensive use in the wetter (more than 600 mm average annual rainfall) areas of the lower south-west. There is potential for a major industry based on fast-growing eucalypts for pulpwood. The foundations for this industry developed from work on agroforestry, forestry sharefarming and salinity control.


Whole-Farm Planning : Success At Wilgi Creek, Kevin Shanhun Jan 1991

Whole-Farm Planning : Success At Wilgi Creek, Kevin Shanhun

Journal of the Department of Agriculture, Western Australia, Series 4

Ian and Bev Lynch own Wilgi Creek, a 376 ha mixed farming property at West Mount Barker in the 700 mm rainfall zone. In 1983, they started a whole-farm plan to overcome the problems of declining production caused by waterlogging (their biggest problem), salinity and deterioration of the remnant native vegetation. Today, their property is an example of a successful, wholefarm land conservation plan based on agroforestry, timber production, water harvesting and improved pastures.


Pasture And Fodder Shrub Species For Deep Sandy Soils., Tim Wiley Jan 1991

Pasture And Fodder Shrub Species For Deep Sandy Soils., Tim Wiley

Experimental Summaries - Plant Research

Trial 90MO64

The evaluation of alternative pasture species on deep sandy soils.

Location: Moora.

Soil type: Deep siliceous sand, moisture at depth pH 5.9 - 6.1 in CaC12.

Trial 90MO65

The evaluation of alternative pasture species on deep sandy soils.

Location: West Gillingarra

Soil type: Deep siliceous sand, moisture at depth pH 5.9 - 6.0 in CaC12

Trial 90MO66

The evaluation of alternative pasture species on deep sandy soils.

Location: West Koojan

Soil type: Deep siliceous sand pH 5.8 - 5.9 in CaC12

Trial 89BA40

Tagasaste establishment trial

Location: Badgingarra Research Station.

Soil type: poor quality …


Management Systems For Sheep., Peter Doyle, L. Cransberg, P. Evans Jan 1991

Management Systems For Sheep., Peter Doyle, L. Cransberg, P. Evans

Experimental Summaries - Plant Research

Trial 89KA6

Location: Kojonup

To measure the effects of set stocking and strip (ration) grazing on:

i) Pasture production, composition and quantity

ii) Sheep production (liveweight, condition score, wool growth rate, fibre diameter, strength and vegetable matter contamination).