Related Experiment Video
Updated: Feb 6, 2026

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading
Published on: March 6, 2014
[Absorption and Distribution of Nitrogen,Phosphorus and Potassium in Atractylodes macrocephala]
Objective:
To investigate the absorption and distribution of nitrogen( N ), phosphorus( P) and potassium( K) in Atractylodes macrocephala by field experiment.
Methods:
The samples of Atractylodes macrocephala were carried out in different growing periods,and the amount of dry matter and the contents of N,P and K in different parts of the plant were determined,respectively.
Results:
The results showed that one-year-old Atractylodes macrocephala of budding stage and rhizome swelling stage were the key period of rapid nutrient absorption, and the absorbed nutrient element mainly allocated to the aerial part. For the two-year-old Atractylodes macrocephala, flowering stage was the key period of rapid nutrient absorption, and the absorbed nutrient element mainly allocated to the rhizome. The average N,P2O5 and K2O absorption per 100 kg rhizome product in two-year-old Atractylodes macrocephala were 2. 65,0. 91 and 2. 16 kg, respectively.
Conclusion:
In addition to the appropriate base fertilizer, one-year-old Atractylodes macrocephala cultivation should pay attention to the topdressing during the budding stage and the rhizome swelling stage, while the two-year-old Atractylodes macrocephala cultivation should pay attention to the topdressing during the flowering stage.
More Related Videos
08:21Optimized Procedure for Determining the Adsorption of Phosphonates onto Granular Ferric Hydroxide using a Miniaturized Phosphorus Determination Method
Published on: May 18, 2018
06:11Determination of the Absorption, Translocation, and Distribution of Imidacloprid in Wheat
Published on: April 28, 2023
Related Concept Videos
Chirality at Nitrogen, Phosphorus, and Sulfur
A consequence of chirality is the need for enantiomeric resolution. While this is theoretically possible for all...
The Nitrogen Cycle
Pharmacokinetics in Obese Patients: Drug Absorption and Distribution
The Phosphorus Cycle
Regulation of Sodium and Potassium
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily...
Overview of Nitrogen Metabolism
The largest pool of nitrogen available in the terrestrial ecosystem is gaseous nitrogen (N2) from the air, but this...