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DOI:
https://doi.org/10.5007/%25xAbstract
The objective of the present work was to study calcium, boron and zinc omission in the nutrient solution on the development of soybean plants (Glycine Max (L.) Merrill cv Santa Rosa). The experiment was carried out in hydroponic culture, using Hoagland and Arnon nutrition solution no. 2: complete ( C ), lacking calcium ( Ca ), lacking boron (- B ) and lacking ( - Z )… The pots were divided in three blocks, each one representing one repetition of the four treatments. Samples were collected at seven different periods of time to study: leaf weight ratio ( g/g ); leaf area ratio ( cm²/g ) and specific leaf area ( cm²/g ) and specific leaf area ( cm²/g) . From the results, in the experimental conditions, it was concluded that: LWR increased in the early leaf proliferation period and it decreased, when the leaves were expanded, to decrease again; LAR tended to decrease all long the plant cycle, increasing only in the early plant development.
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