astronomy

Jacqueline Rowarth

Jacqueline Rowarth is a astronomy topic covered in the lgStudy science library. This page brings together a partial reference excerpt, illustrations, worked examples, real-world applications and a short study plan, so you can understand Jacqueline Rowarth rather than just read about it. In short: Jacqueline Sara Rowarth (born 1956) is a New Zealand agronomist, dairy farmer and science administrator. Career Rowarth was born at St Albans, Hertfordshire, England.

Key takeaways

Jacqueline Rowarth belongs to astronomy; place it in that map before memorising details.
Learn the definition first, then one example that makes the definition concrete.
Connect Jacqueline Rowarth to a quantity you can measure, compute or draw — that is where exam questions come from.
Reproduce the core statement of Jacqueline Rowarth from memory before moving on to harder problems.

Reference excerpt

Jacqueline Sara Rowarth (born 1956) is a New Zealand agronomist, dairy farmer and science administrator.

Career Rowarth was born at St Albans, Hertfordshire, England. She moved to New Zealand in 1976 and has an agricultural science degree with first-class honours in environmental agriculture, and obtained a PhD in soil science from Massey University, with a 1987 thesis titled Phosphate cycling in grazed hill-country pasture. She worked at AgResearch for six years before teaching plant science at Lincoln University. From 2000 to 2004, she was dean of the postgraduate division and director of research at Unitec Institute of Technology. She was briefly associate professor at the University of Melbourne, from 2005 to 2006. She returned to New Zealand as a professor, teaching at Massey and the University of Waikato. In October 2016, Rowarth left Waikato to become the first chief scientist of the Environmental Protection Authority (EPA). In 2018, she resigned from her role at the EPA; it was later revealed that the EPA was warned Rowarth's behaviour was damaging trust in the organisation, apparently due to comments to the media about environmentalist concerns that she deemed unwarranted. According to Rowarth, she was often misquoted. Rowarth became a farmer-elected representative on the board of DairyNZ. In 2024, she is a director, and also adjunct professor at Lincoln University.

Views Rowarth has strongly criticised veganism. She has argued that a vegan diet will not save the planet from climate change and has also argued that an omnivorous diet including a moderate amount of dairy products and meat delivers the required nutrients per person for least environmental impact. Rowarth has also criticised regenerative agriculture based on the restoration of soil fertility through techniques like water retention and composting, and supports the intensification of agricultural practices with higher levels of inputs and output per unit area.

Honours and awards In the 2008 Queen's Birthday Honours, Rowarth was appointed a Companion of the New Zealand Order of Merit, for services to agricultural science. In 2024, she was awarded the Jubilee Medal by the New Zealand Institute of Agricultural and Horticultural Science, for "her contribution to primary resource science as a leader in research, education, technology transfer and communication".

Selected publications Rowarth, Jacqueline (1987). Phosphate cycling in grazed hill-country pasture (Thesis). Massey University. Rowarth, Jacqueline; Cookson, W. R; Cornforth, I. S. (2002). "Winter soil temperature (2–15 °C) effects on nitrogen transformations in clover green manure amended or unamended soils; a laboratory and field study". Soil Biology and Biochemistry. 34 (10): 1401–1415. Bibcode:2002SBiBi..34.1401C. doi:10.1016/S0038-0717(02)00083-4.{{cite journal}}: CS1 maint: multiple names: authors list (link)

References

Illustrations

Worked examples

Example 1 — a first encounter with Jacqueline Rowarth

Start with the simplest possible case. Write down what Jacqueline Rowarth claims or describes in one sentence, then invent the smallest concrete situation in which that sentence is true. In astronomy, the smallest case is usually a single object, a single equation or a single measurement. Check that every symbol or term in your sentence has a meaning in that case.

Example 2 — changing one variable

Take the situation from Example 1 and change exactly one quantity: double it, halve it, or set it to zero. Predict what should happen to Jacqueline Rowarth before you calculate. Comparing your prediction with the result is the fastest way to find out whether you understand the idea or only the words.

Example 3 — an exam-style question

Typical questions about Jacqueline Rowarth ask you to (a) state it precisely, (b) apply it to given data, and (c) explain a limitation. Practise writing all three answers in under five minutes; the third part is what separates a full-mark answer from an average one.

Applications of Jacqueline Rowarth

In research: Jacqueline Rowarth appears in astronomy research whenever the underlying quantities have to be modelled precisely. Papers usually cite it as a starting assumption and then explore where it breaks down.
In technology and industry: Engineering practice reuses Jacqueline Rowarth in design rules, simulations and safety margins. Knowing the idea lets you read a specification sheet and understand why the numbers look the way they do.
In the classroom: Jacqueline Rowarth is common in secondary-school and first-year university syllabi. It links to neighbouring topics 1956 births, Academic staff of Lincoln University (New Zealand), Academic staff of Massey University, so understanding it makes those chapters shorter.
In everyday life: Look for Jacqueline Rowarth outside the textbook — in sport, cooking, traffic, electronics or the sky above you. An example you found yourself is remembered far longer than one you were given.

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How to study Jacqueline Rowarth in 20 minutes

Read the reference excerpt below once, without taking notes.
Close the page and write down what Jacqueline Rowarth means in your own words.
Compare your version with the excerpt and mark what you missed.
Work through the three examples above with pen and paper.
Explain Jacqueline Rowarth out loud to somebody else — or to Teacher Smith in the lgStudy chat.

Frequently asked questions

What is Jacqueline Rowarth in simple terms?

Jacqueline Sara Rowarth (born 1956) is a New Zealand agronomist, dairy farmer and science administrator. Career Rowarth was born at St Albans, Hertfordshire, England.

Why does Jacqueline Rowarth matter?

Because it connects several astronomy ideas at once: it gives you a definition you can apply, a quantity you can calculate, and a way to check whether a result is plausible.

How should I study Jacqueline Rowarth?

Read the excerpt, restate it from memory, then work through the examples and applications listed on this page. The five-step study plan above takes about twenty minutes.

What does this page cover?

It gives you a compact reference excerpt plus original lgStudy explanations, examples, applications and study material on Jacqueline Rowarth.