Version 1
: Received: 5 July 2024 / Approved: 9 July 2024 / Online: 9 July 2024 (08:39:25 CEST)
How to cite:
Zhou, L.; Jiang, Y. Seedling Emergence of Spring Maize Under Various Width of Plastic Film Mulch in the Cool-Spring Northwest China. Preprints2024, 2024070710. https://doi.org/10.20944/preprints202407.0710.v1
Zhou, L.; Jiang, Y. Seedling Emergence of Spring Maize Under Various Width of Plastic Film Mulch in the Cool-Spring Northwest China. Preprints 2024, 2024070710. https://doi.org/10.20944/preprints202407.0710.v1
Zhou, L.; Jiang, Y. Seedling Emergence of Spring Maize Under Various Width of Plastic Film Mulch in the Cool-Spring Northwest China. Preprints2024, 2024070710. https://doi.org/10.20944/preprints202407.0710.v1
APA Style
Zhou, L., & Jiang, Y. (2024). Seedling Emergence of Spring Maize Under Various Width of Plastic Film Mulch in the Cool-Spring Northwest China. Preprints. https://doi.org/10.20944/preprints202407.0710.v1
Chicago/Turabian Style
Zhou, L. and Youyuan Jiang. 2024 "Seedling Emergence of Spring Maize Under Various Width of Plastic Film Mulch in the Cool-Spring Northwest China" Preprints. https://doi.org/10.20944/preprints202407.0710.v1
Abstract
Seedling emergence is crucial for the establishment and growth of crops and is influenced by topsoil temperature and moisture. Mulching has been widely used to promote seedling emergence in areas with a cold spring. This study was conducted to determine and simulate the effects of transparent plastic film mulch on surface soil moisture, temperature, and seedling emergence of spring maize in Northwest China. Four treatments were used: no mulching (CK), full plastic film mulch (PMF), and partial plastic film mulch, 60 cm in width (PM60, 40 cm uncovered between rows of mulch) or 30 cm in width (PM30, 20 cm uncovered between rows of mulch). The effects of soil water conservation and temperature enhancement gradually decreased as the plastic film width decreased, but there was little difference between PMF and PM60 treatments. Soil-water-modified growing degree days (WGDD) described the beneficial effects of soil moisture and temperature with respect to seedling emergence under mulching conditions. Plastic film mulching markedly accelerated seedling emergence and increased final seedling emergence rate because mulching can shorten the autotrophy duration and maintain surface soil moisture, which leads to increased germination. The effects of seedling emergence improvement decreased as the plastic film width decreased. The relationship between WGDD and cumulative relative seedling emergence (CRE) was adequately described by a Gompertz function.
Keywords
mulching; growing degree-days; seedling emergence; the Gompertz function
Subject
Biology and Life Sciences, Agricultural Science and Agronomy
Copyright:
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.
