PhD candidate helping to grow a more sustainable future for farming
As the world faces rising challenges around food security and environmental sustainability, Western Sydney University PhD candidate Sonali is using science to help build smarter, more sustainable farming systems.
Based at the School of Science, Sonali’s research focuses on fertigation efficiency, how nutrients like potassium are delivered through irrigation, and how managing these inputs in advanced glasshouse environments can reduce waste and improve crop performance.
“Plants convey information using an intricate system of signals and reactions. Likewise, my study interprets this system to improve nutrient use efficiency and elevate crop performance, supporting sustainable agricultural growth,” she said.
“Essentially, my work transforms invisible plant responses into actionable insights, bridging the gap between nature’s language and sustainable food production for a growing population.”
Her work aligns closely with this year’s National Science Week theme, Decoding the Universe, which celebrates how science helps us better understand the world around us, whether it’s deep space or the soil beneath our feet.
“As we know, the fertilizer demand is rising day by day and every year there is a huge rise in fertilizer prices,” Sonali said.
“This over excessive use of fertilizers has been leaching out in rivers, oceans, which in turn is impacting the lively flora and fauna.”
Sonali developed an interest in plant biochemistry during her master’s degree, where she studied carbon and nitrogen metabolism in quinoa.
“Throughout my master’s research on the metabolism of carbon and nitrogen in quinoa, I developed a deep interest in the biochemical and physiological mechanisms that influence crop performance,” she said.
“This realisation prompted me to pursue a PhD that concentrates on fertigation efficiency in advanced glasshouses, where I investigate how managing nutrients can boost both yield and quality while minimising environmental impact.”
“My passion for agriculture and horticultural science originates from a profound interest in how plants react to their surroundings and how we can enhance production in a sustainable way.”
Sonali, from India, said the experience of doing a PhD has taught her valuable personal and professional lessons. She studies and lives near the University’s Hawkesbury campus.
“Throughout my PhD journey, the greatest lesson I’ve embraced is the power of consistency,” she said.
“When you remain consistent and master the art of managing challenges, you can navigate anything that comes your way. In research, patience and trust in the process are essential, they shape you into a strong, multifaceted individual both personally and professionally.”
“Above all, there should be no room for fear, because confidence is the most beautiful thing you can wear to succeed.”
Looking ahead, Sonali hopes to continue bridging the gap between science and practical farming solutions.
“In the long term, I see myself leading meaningful research and industry collaborations that advance sustainable agriculture globally,” she said.
“My goal is to empower farmers with eco-friendly solutions that improve yields, conserve resources, and strengthen global food security. Above all, I believe in contributing to society through education, as knowledge is a powerful tool for development and a true driver of progress for any nation.”
ENDS
7 August 2025
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