Territory Stories

Technical annual report 2000-01

Details:

Title

Technical annual report 2000-01

Collection

Dept. of Regional Development, Primary Industry, Fisheries and Resources technical annual report; Department of Regional Development, Primary Industry, Fisheries and Resources technical and annual report; Reports; PublicationNT; Technical bulletin (Northern Territory. Dept. of Primary Industry and Fisheries) ; no. 295

Date

2001-10

Description

Made available via the Publications (Legal Deposit) Act 2004 (NT).

Notes

Date:2001-10

Language

English

Subject

Agriculture -- Northern Territory -- Periodicals; Fisheries -- Northern Territory -- Periodicals

Publisher name

Dept. of Primary Industry and Fisheries

Place of publication

Darwin

Series

Technical bulletin (Northern Territory. Dept. of Primary Industry and Fisheries) ; no. 295

ISSN

0158-2763

Copyright owner

Check within Publication or with content Publisher.

Parent handle

https://hdl.handle.net/10070/223369

Citation address

https://hdl.handle.net/10070/687151

Page content

Department of Primary Industry and Fisheries 32 A two-row buffer was planted around the outside of the trial area using the same seed. The area had previously been sprayed with herbicide for pre-planting weed control. Trees were planted on two occasions, 17 December and 28 January because some seedlings were too small on the first planting date. Mixed fertiliser at 200 g/tree with trace was applied on 3/2/99. During the first recording in August 1999 minor form pruning was undertaken to remove any multiple leaders so as to encourage good straight growth of a single stem. Measurements have been taken on four occasions and the results are shown in Table 3. Table 3. Survival and growth rates of Tectona grandis planted at DDRF in December 98 and January 99 Average height (cm)Treatment Survival % 1999 August 1999 December 1999 August 2000 March 2001 Stumps 81* 24.45 32.00 48.70 135.13 1 L bags 100 101.43 109.92 136.36 226.94 Plantek trays 95 78.17 88.42 117.94 209.06 * The lower survival rates and the lower growth rates for the stump treatment is due to the poorer quality planting material that was used to make up numbers. Many of the stumps were far too small to be planted out, but as the Wet season progressed, time was running out to establish a rain-fed trial. The growth spike that occurred leading up to the last measurement in March 2001 should also be noted. Some trees grew over 2 m in the eight-month period between the third and fourth recording. This can be explained by the fact that these trees had sunk their roots down far enough to access moisture in the well-drained sandy soil, which enabled them to grow faster.