Response of productivity and nitrogen efficiency to plastic-film mulching patterns for maize in sub-humid northeast Chin
- PDF / 1,027,737 Bytes
- 12 Pages / 595.276 x 790.866 pts Page_size
- 26 Downloads / 155 Views
ORIGINAL PAPER
Response of productivity and nitrogen efficiency to plastic‑film mulching patterns for maize in sub‑humid northeast China Xiaodong Bo1 · Yanfeng Li1 · Jiusheng Li1 Received: 15 October 2019 / Accepted: 8 October 2020 © Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract In the semi-humid region of northeast China, the plastic-film mulching (PFM) is essential for sustaining yields, while the yield-increase potential and nitrogen (N) use mechanism under different PFM patterns in this area remain poorly understood. A field experiment using maize (Zea mays L.) was conducted for two consecutive years to study the effects of different PFM patterns on soil microclimate factors, N mineralization, N loss, crop yields and N use efficiency under drip irrigation. The six treatments consisted of full ridge-furrow mulching (FM), only ridge mulching (RM), non-mulching (NM), ridge-furrow mulching without fertilization (CFM), ridge mulching without fertilization (CRM), and non-mulching without fertilization (CNM). The results showed that the PFM could obviously warm the soil throughout the growing season. Compared to NM, FM and RM obviously increased the soil temperature by 2.0–5.4 ℃ and 1.6–4.8 ℃ in the 2017 season, respectively, and by 1.9–7.8 ℃ and 1.0–5.7 ℃ in the 2018 season, respectively. Across two years, soil temperature was highest for FM followed by RM and NM. In general, FM enhanced the soil water content compared with RM, especially in the 0–50 cm profile throughout the growing season. The PFM could significantly (p
Data Loading...
