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First of allwho demosntarte that plants ...

First of allwho demosntarte that plants can be grow to maturity ina defined nutrient solution in complete absence of soil?

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**Step-by-Step Solution:** 1. **Identify the Scientist**: The first scientist who demonstrated that plants can grow to maturity in a defined nutrient solution without soil is Julius von Sachs. 2. **Background Information**: Julius von Sachs was a prominent German botanist known for his contributions to plant physiology and nutrition. 3. **Year of Demonstration**: He conducted his experiment and made this discovery in the year 1860. 4. **Experiment Details**: In his experiment, he showed that plants could survive and reach maturity by using a nutrient solution instead of soil. This was a significant finding in understanding plant nutrition. 5. **Technique Name**: The technique that involves growing plants in a nutrient solution without soil is known as hydroponics. 6. **Conclusion**: Julius von Sachs's work laid the foundation for hydroponics, which is still used today for growing plants in controlled environments. ---
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