Next Article in Journal
Placing Ecosystem Services within the Water–Food–Energy–Climate Nexus: A Case Study in Mediterranean Mixed Orchards
Next Article in Special Issue
The Effect of Combining N-Fertilization with Urease Inhibitors and Biological Preparations on Maize Biological Productivity
Previous Article in Journal
Mycorrhizal Inoculation Improves the Quality and Productivity of Essential Oil Distilled from Three Aromatic and Medicinal Plants: Thymus satureioides, Thymus pallidus, and Lavandula dentata
Previous Article in Special Issue
Conversion of Thermal Energy to Gas Flow Kinetic Energy in the Bionic Leaf Stomata
 
 
Article

Influencing Factors of the Distribution Accuracy and the Optimal Parameters of a Pneumatic Fertilization Distributor in a Fertilizer Applicator

1
College of Engineering, Nanjing Agricultural University, Nanjing 210031, China
2
Nanjing Institute of Agricultural Mechanization, Ministry of Agriculture and Rural Affairs, Nanjing 210014, China
*
Author to whom correspondence should be addressed.
Academic Editors: Egidijus Šarauskis, Vilma Naujokienė and Zita Kriauciuniene
Agronomy 2022, 12(9), 2222; https://doi.org/10.3390/agronomy12092222
Received: 29 July 2022 / Revised: 12 September 2022 / Accepted: 14 September 2022 / Published: 18 September 2022
(This article belongs to the Special Issue Agricultural Automation and Innovative Agricultural Systems)
A pneumatic fertilization distributor used for fertilizing in a fertilizer applicator is a key component of the applicator. The parameters of a pneumatic fertilization distributor affect the uniformity and accuracy of the fertilization of a fertilizer applicator. To obtain the optimal design parameters of a pneumatic fertilization distributor, a fluidstructure coupling simulation test and a bench test were carried out in the Intelligent Agricultural Machinery Laboratory of the Nanjing Institute of Agricultural Mechanization from March 2021 to July 2022. The curvature–diameter ratios of the elbow, bellow length, and air velocity were selected as the experimental factors, and the variation coefficient of the fertilizer discharge at each discharge outlet within 0.5–3 s was selected as the experimental index. A five-level quadratic regression orthogonal rotation combined test was carried out. The results showed that: (1) all three factors had a significant impact on the uniformity of the fertilizer discharge. The reasonable ranges of the curvature–diameter ratio, bellow length, and air velocity were 0.5–1.5, 350–550 mm, and 25–35 m/s, respectively. (2) The order of the influence of the three factors on the uniformity of the fertilizer discharge in descending order was as follows: the curvature–diameter ratio of the elbow, the bellow length, and the air velocity. When the bellow length was 460 mm, the curvature–diameter ratio was 0.6, and the inlet air velocity was 28 m/s. The uniformity of the fertilizer discharge was optimal. A pneumatic conveying system was redesigned according to the optimal parameters, and a bench test was carried out. The results showed that at different speeds, the coefficient of variation of each row’s displacement was not greater than 5%, and the simulation test results were consistent with the bench test results. View Full-Text
Keywords: pneumatic fertilization distributor; pneumatic conveying; fertilizer applicator; air velocity pneumatic fertilization distributor; pneumatic conveying; fertilizer applicator; air velocity
Show Figures

Figure 1

MDPI and ACS Style

Yuan, W.; Ji, C.; Liu, Z.; Jin, C.; Feng, Y. Influencing Factors of the Distribution Accuracy and the Optimal Parameters of a Pneumatic Fertilization Distributor in a Fertilizer Applicator. Agronomy 2022, 12, 2222. https://doi.org/10.3390/agronomy12092222

AMA Style

Yuan W, Ji C, Liu Z, Jin C, Feng Y. Influencing Factors of the Distribution Accuracy and the Optimal Parameters of a Pneumatic Fertilization Distributor in a Fertilizer Applicator. Agronomy. 2022; 12(9):2222. https://doi.org/10.3390/agronomy12092222

Chicago/Turabian Style

Yuan, Wensheng, Changying Ji, Zhiyuan Liu, Chengqian Jin, and Yugang Feng. 2022. "Influencing Factors of the Distribution Accuracy and the Optimal Parameters of a Pneumatic Fertilization Distributor in a Fertilizer Applicator" Agronomy 12, no. 9: 2222. https://doi.org/10.3390/agronomy12092222

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop