Insects play a key role in the pollination of cultivated plants, and a new study suggests that they can be even more important than fertilizer. In the study, fertilization and watering only had an effect on harvest yield in combination with pollination manipulations. Results led the scientists to the conclusion that an almond tree can compensate for a lack of nutrients and water in the short term by directing stored nutrients and water to the fruits but cannot compensate for insufficient pollination.
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