生物动力农业的基本概念之一是太阳、月亮和行星如何通过钙和硅在植物生长过程中发挥作用。恩斯特-迈克尔-克拉尼奇（Ernst Michael Kranich）在书中描述了不同植物家族的生长模式、叶片位置和花朵形态，以及它们是如何与特定行星的相同节奏活动明确联系在一起的。通过这项研究，读者可以扩大他们对自然的感知。
What is the main focus of the book 'Planetary Influences upon Plants'?
The book focuses on how the sun, moon, and planets influence plant growth patterns, leaf placements, and flower forms through biodynamic agriculture principles.
Who is the author of 'Planetary Influences upon Plants'?
The book is authored by Ernst Michael Kranich and translated by Ulla Chadwick and Austin Chadwick.
How does this book help with understanding plant growth?
It provides insights into how planetary rhythms affect plant growth, helping readers enhance their perception of nature with illustrations and examples.
Where can I purchase 'Planetary Influences upon Plants'?
The book is available from The Josephine Porter Institute and can be purchased online.
