Next Article in Journal
Stress and Welfare of African Catfish (Clarias gariepinus Burchell, 1822) in a Coupled Aquaponic System
Previous Article in Journal
Performance Evaluations of Three Silt Fence Practices Using a Full-Scale Testing Apparatus
Article Menu
Issue 7 (July) cover image

Export Article

Open AccessArticle
Water 2017, 9(7), 503; https://doi.org/10.3390/w9070503

Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods

1
Key Laboratory of Crop Water Use and Regulation, Ministry of Agriculture, Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences, Xinxiang 453000, Henan, China
2
Graduate School of the Chinese Academy of Agricultural Sciences, Beijing 100081, China
*
Author to whom correspondence should be addressed.
Received: 29 April 2017 / Revised: 6 June 2017 / Accepted: 5 July 2017 / Published: 11 July 2017
View Full-Text   |   Download PDF [5683 KB, uploaded 11 July 2017]   |  

Abstract

Winter wheat and cotton are the main crops grown on the North China Plain (NCP). Cotton is often transplanted after the winter wheat harvest to solve the competition for cultivated land between winter wheat and cotton, and to ensure that both crops can be harvested on the NCP. However, the root system of transplanted cotton is distorted due to the restrictions of the seedling aperture disk before transplanting. Therefore, the investigation of the deformed root distribution and water uptake in transplanted cotton is essential for simulating soil water movement under different irrigation methods. Thus, a field experiment and a simulation study were conducted during 2013–2015 to explore the deformed roots of transplanted cotton and soil water movement using border irrigation (BI) and surface drip irrigation (SDI). The results showed that SDI was conducive to root growth in the shallow root zone (0–30 cm), and that BI was conducive to root growth in the deeper root zone (below 30 cm). SDI is well suited for producing the optimal soil water distribution pattern for the deformed root system of transplanted cotton, and the root system was more developed under SDI than under BI. Comparisons between experimental data and model simulations showed that the HYDRUS-2D model described the soil water content (SWC) under different irrigation methods well, with root mean square errors (RMSEs) of 0.023 and 0.029 cm3 cm−3 and model efficiencies (EFs) of 0.68 and 0.59 for BI and SDI, respectively. Our findings will be very useful for designing an optimal irrigation plan for BI and SDI in transplanted cotton fields, and for promoting the wider use of this planting pattern for cotton transplantation. View Full-Text
Keywords: deformed root; soil water content; HYDRUS-2D; border irrigation; surface drip irrigation deformed root; soil water content; HYDRUS-2D; border irrigation; surface drip irrigation
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Zhang, H.; Liu, H.; Sun, C.; Gao, Y.; Gong, X.; Sun, J.; Wang, W. Root Development of Transplanted Cotton and Simulation of Soil Water Movement under Different Irrigation Methods. Water 2017, 9, 503.

Show more citation formats Show less citations formats

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

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Water EISSN 2073-4441 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top