Agronomy4future

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Agronomy4future

Stories about cereals and statistics (plus coding)

Urbana-Champaign Farming Record on May 2024

June 20, 2024 JK

Crop physiology, United States

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I'm a crop physiologist studying cereal crops. My current interests are crop physiology in fields (i.e. source-sink dynamics, nitrogen use efficiency, farming systems, etc.) using various statistical/data tools. Phenotypic plasticity and plant adaptation against environmental changes are also my interests. I’m always interested in programming (i.e. R, Python) for data science, and advanced SQL for big data analysis.
_______________________________
• Email: agronomy4future@gmail.com
• GitHub: github.com/agronomy4future
• GitHub page: agronomy4future.github.io
• YouTube: https://www.youtube.com/@agronomy4future/videos

annotate() arrange() c(rep() coalesce() colnames() data.frame() ddply () dplyr dplyr::summarize() facet_wrap() filter() fixef() geom_abline () geom_bar () geom_segment() geom_vline() github group_by() HSD.test() if() ifelse() list() mutate() na.rm=T nls() nlsLM() pivot_longer() pivot_wider() ranef() rbind() rename() reshape2::melt() residuals() sapply() scale_fill_manual () str_replace_all () subset() summarise() table() tapply() tdist() theme_grey() windows () write_xlsx() xtabs()

The sorghum growth stage is V8-V9 (left), and dissected floret primordia (right). At this stage, floret development is critical, and therefore resources are important. pic.twitter.com/q0YQ3F7lte
— Jin.W.Kim (JK) (@el_trigo_JK) June 26, 2024

The female flower of Cannabis sativa characterized by its resinous buds, which are the primary source of cannabinoids such as THC and CBD. pic.twitter.com/otqoPvyFQq
— Jin.W.Kim (JK) (@el_trigo_JK) June 14, 2024

Farming is the process of harvesting light energy. Plants convert sunlight into chemical energy stored in glucose, which is produced from CO2 and water. Thus, farming captures and utilizes solar energy to produce agricultural products.
— Jin.W.Kim (JK) (@el_trigo_JK) June 13, 2024

Cover crop planting: Spread with straw bales to retain moisture for better germination and to prevent movement for small grain crops such as alfalfa or orchard grass. pic.twitter.com/C0idKTxzTU
— Jin.W.Kim (JK) (@el_trigo_JK) May 30, 2024

Alfalfa planting. The fertilizer spreader would be the best option to plant small seeds!! pic.twitter.com/ltxdFEC8dk
— Jin.W.Kim (JK) (@el_trigo_JK) May 20, 2024

Stepwise regression is a method that iteratively constructs a regression model by selecting independent variables to include in the final model, and I summarized the basic concept.
#
Stepwise Regression: A Practical Approach for Model Selection using R (https://t.co/YeLnex72ng) pic.twitter.com/HFOIukVzhk
— Jin.W.Kim (JK) (@el_trigo_JK) May 8, 2024

Data normalization improves scale uniformity and enhances visualization interpretability. I introduce several methods for data normalization.

Data Normalization Techniques: Excel and R as the Initial Steps in Machine Learning (https://t.co/5yUE2fjHfn) pic.twitter.com/7x6mU2ccgf
— Jin.W.Kim (JK) (@el_trigo_JK) April 29, 2024

#Agrivoltaic conference in June 2024. In shaded environments, various studies on crop physiology are available without the need for additional shading installations. Agrivoltaics also makes it an energy-efficient approach in crop science. I love this concept. pic.twitter.com/OiDtyKUxAC
— Jin.W.Kim (JK) (@el_trigo_JK) April 17, 2024

Solar Farm 2.0 #SCAPES Crops Research @ University of Illinois at Urbana-Champaign.
Last season, I altered the sources-sink strength of sorghum and soybean and collected valuable data. This upcoming season, I will analyze the genotypic variance of soybeans in response to shading. pic.twitter.com/76EqBF8kuB
— Jin.W.Kim (JK) (@el_trigo_JK) April 9, 2024

Solar Farm 2.0 Crops Research at UIUC. This is one of my researches I've been involved, and my main interest lies in understanding how shading affects the main yield components and determining the best strategy for managing crop growth under solar panels (https://t.co/ztp25lHCky)
— Jin.W.Kim (JK) (@el_trigo_JK) October 28, 2023

Solar Farm 2.0 SCAPES Crops Research @ University of Illinois Urbana-Champaign. https://t.co/fIqsmoMJYu
— Jin.W.Kim (JK) (@el_trigo_JK) September 12, 2023

Source-sink manipulation was performed on sorghum by removing alternate leaves throughout the entire canopy and half of the head 10 days after flowering, as referenced in Gambín and Borrás (2007). How does sorghum grain weight respond to the change in assimilates? pic.twitter.com/omR7oDQTO8
— Jin.W.Kim (JK) (@el_trigo_JK) August 9, 2023

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Urea Application in Sorghum Field @ Champaign, Illinois (25 June 2024)
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Urbana-Champaign Farming Record on May 2024
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