SUSTAINABLE AGRICULTURE 2nd Edition - Part 4 docx

... of materials/parts used and time required. Sustainable Agriculture 74 3Ifpossible, arrange fencing of low-lying land to include a few areas where stock can retreat as water rises. 4Have a procedure ... these options and hope- fully select the optimum design for that particular irrigation system. Even small-scale irri- gation systems are generally costly and intended for long-term usage,...

Ngày tải lên: 02/07/2014, 00:20

... no Introduction National Library of Australia Cataloguing-in-Publication: Mason, John, 1951– . Sustainable agriculture. 2nd ed. ISBN 0 643 06876 7. 1. Sustainable agriculture. 2. Sustainable development. I. Title. 338.16 Copyright ... or Sustainable Agriculture 4 Acknowledgements v Introduction 1 1 Different things to different people 3 2Sustainable concepts 9 3 Soils 23 4Wa...

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... away. Hawk silhouette A model or cut-out of a hawk shape is fixed to a post or overhead on a wire. This scares away fruit and nut-eating birds. Sustainable Agriculture 84 Figure 5.2 Scarecrow used for ... in most parts of the world. Metal-based compounds These include chemicals based upon heavy metals such as lead and mercury. These chemi- cals are highly dangerous and are now banned in...

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... deficient in nutrients, requiring special attention to recondition them Sustainable Agriculture 126 Sustainable Agriculture 1 24 dures, tests and methods must be used, and what time is involved. Contact ... changing and adapting to what is happen- ing in the real world. For instance, many producers who have turned to value-added prod- ucts are reaching their 20-year goal in five to t...

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... and making the trees vulnerable to being blown over in strong winds. Sustainable Agriculture 168 Sustainable Agriculture 1 64 height of the shelter belt, although ideally the distance should be ... no gaps (eg roads cutting through). Sustainable Agriculture 166 157 Increasing rainfall It has been reported that treed districts receive more rainfall than nearby non-treed districts...

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... full implications of introducing something new into an environment are not understood. Sustainable Agriculture 1 04 Figure 6.1 Prickly pear (Opuntia sp.) – this weed was a massive problem in Australian ... significant danger to non-target organisms. In particular, residual and foliar applications have the potential to kill desired plants, poison animals, reduce soil micro-organisms, evap...

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... decomposition-spoilage) are less likely to occur. Hay can be stored either in the smaller, rectangular bale or the larger round Sustainable Agriculture 144 Sustainable Agriculture 148 Bush tucker ... the most intensive and results proven method for all other forms of silage. Sustainable Agriculture 142 Sustainable Agriculture 138 Uses •hay, pasture, green manure, cover crop •...

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... paddock: •Paddocks growing nitrogen-fixing plants (eg legumes) should be fallowed with nitrogen users such as grasses Sustainable Agriculture 176 Sustainable Agriculture 172 might be better to ... better tailor-made to suit the conditions there. Rotating uses of a paddock This involves using a paddock for different purposes at different times; for example, grow- Sustainable Agricul...

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