What are the references describe plant nutrition and years?

There are several references that describe plant nutrition and years. Here are a few examples:

1. "Plant Nutrition and Soil Fertility" by Nicholas Bernard, published in 1999, provides a comprehensive overview of plant nutrition, including the role of soil in providing nutrients to plants.

2. "Plant Nutrition: From Genetic Engineering to Field Practice" edited by H. Marschner and Z. Rengel, published in 2002, covers various aspects of plant nutrition, including the latest advancements in genetic engineering techniques and their impact on crop nutrition.

3. "Mineral Nutrition of Plants: Principles and Perspectives" by Emanuel Epstein and Arnold J. Bloom, first published in 2004, explores the principles of mineral nutrition and the role of various nutrients in plant growth and development.

4. "The Rhizophere: Biochemistry and Organic Substances at the Soil-Plant Interface" by Roberto Pinton, Zeno Varanini, and Paolo Nannipieri, first published in 2007, focuses on the intricate interactions between soil and plant roots and their implications for plant nutrition.

5. "Plant Nutrition: Physiology and Applications" by V. Damodara Reddy, published in 2014, discusses the physiological processes involved in plant nutrition and their practical applications in agriculture.

These references provide valuable information on plant nutrition and span across different years, showcasing the evolving understanding and research in this field.

I'm sorry, but I'm not entirely clear on what you are asking. Could you please provide more context or clarify your question?

To find references that describe plant nutrition over the years, you can follow these steps:

1. Start by searching for scientific databases or journals that publish articles related to plant nutrition. Some popular databases include PubMed, Web of Science, Scopus, and Google Scholar.

2. Go to the selected database's website and enter relevant keywords related to plant nutrition and years in the search bar. For example, you can use keywords like "plant nutrition," "plant nutrients," "nutrient uptake," and "plant growth" along with the time frame you are interested in, such as "period of 1950-2020" or "20th century."

3. Review the search results for relevant articles. Look for research papers, reviews, or meta-analyses that discuss the topic of plant nutrition over the specified time period.

4. Read the abstracts or summaries of the articles to identify if they cover the historical aspects of plant nutrition. Pay attention to any references or citations that are mentioned, as they can be used to track down further relevant resources.

5. Click on the articles of interest to access the full text. Read through the content to gain information about plant nutrition trends, advancements, or changes throughout the years.

6. Take note of any key findings, important studies, or significant developments that have occurred in the field of plant nutrition over time. These findings can be used as references or citations to support your understanding of the subject.

Remember to critically evaluate the credibility and reliability of the sources you find. Peer-reviewed and reputable journals tend to offer more reliable information. Additionally, consider the specific context or focus you are interested in, such as specific plants or nutrients, as this can help refine your search and find more specific references.