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বাস্তু তন্ত্রের যেসব উপাদান খাদ্য সংশ্লেষে সক্ষম, তাদের উৎপাদক বলে। যেমন – সবুজ উদ্ভিদ, সালোকসংশ্লেষকারী ব্যাকটেরিয়া, কেমোসিন্থেটিক জীবাণু প্রভৃতি।
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বাস্তু তন্ত্রের যেসব উপাদান খাদ্য সংশ্লেষে সক্ষম, তাদের উৎপাদক বলে। যেমন – সবুজ উদ্ভিদ, সালোকসংশ্লেষকারী ব্যাকটেরিয়া, কেমোসিন্থেটিক জীবাণু প্রভৃতি।