Mastering Soil Management
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Questions and Answers

What are the different types of nitrogen fertilizers mentioned in the text?

Ammoniacal Nitrogen, C.A.N., Ureic Nitrogen

How is slurry storage calculated?

Slurry = Number of animals \times volume of excreta \times weeks storage

What gases are produced during the bacterial decomposition of slurry?

Carbon dioxide, Methane, Ammonia, Hydrogen sulphide

What is the function of lime in soil management?

<p>The function of lime in soil management is to remove acidity, improve organic matter breakdown, improve microbial activity/root development, improve drainage, make soils easier to till, increase earthworm activity, and improve clover &amp; grass growth.</p> Signup and view all the answers

What is the ideal soil pH?

<p>The ideal soil pH is 6.5.</p> Signup and view all the answers

What are the important roles of phosphorus (P) in plant development?

<p>Phosphorus (P) is particularly important in young plant development, plant growth, cell division, root development, and gives higher yields &amp; better quality.</p> Signup and view all the answers

What are the characteristics of Ammoniacal Nitrogen compared to nitrate?

<p>Slower acting, not easily leached, 3-5 weeks conversion</p> Signup and view all the answers

Describe the nitrogen content and composition of C.A.N. fertiliser.

<p>27.5% N, half nitrate, half ammonium</p> Signup and view all the answers

What factors affect the availability of Ureic Nitrogen, and why is it not suitable for summer applications?

<p>Soil temp, moisture affect availability; requires moisture, easily leached in summer</p> Signup and view all the answers

How is slurry storage calculated, and provide an example calculation?

<p>Slurry = Number of animals x volume of excreta x weeks storage. Example: 50 cows x 0.33 x 16 = 264m3</p> Signup and view all the answers

Why is the timing of manure application important, and when is the best time to spread it for maximum effectiveness?

<p>Timing affects N availability, best in spring (70% applied by end of April)</p> Signup and view all the answers

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