English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

The total nitrogen concentrations (Total-N) in hydroponic nutrient affects nutrient uptake efficiency and crop growth. This research is aim to formula efficient Total Nitrogen on the hydroponic nutrient of kailan or kale crop. This research was conducted from January to February at Universitas Padjadjaran Greenhouse Jatinangor, Sumedang West Java 700 m above sea level. This research used an experimental method, and the experimental design was used Completely Randomized Design with seven treatments, i.e., 190, 210, 230, 250, 270, 290, 310 ppm and four replications. The parameter observed in this research Parameter, i.e. Main parameter (crop height, leaf area, crop dry weight, shoot-root ratio, and crop fresh weight) and secondary observation ( temperature, greenhouse humidity, and pH nutrient). The data collected from the main observation and secondary observation than analyzed with variance analyzed α=5%, if the result of analyzed variance were significant, the data would analyze with Duncan multiple range test α=5%. The result showed that application various Total-N start from 190-310 ppm nonsignificant affect the crop growth of Kailan Crop. The application of total N 190 ppm efficient to support Kailan crop growth.

The Effect of Various Total Nitrogen (Total-N) Concentrations in Hydroponic Nutrient on The Growth of Kailan Crop (Brassica oleraceae L.)