Effect of ridge film mulching and nitrogen application rate on seed quality, oil yield and nitrogen-use efficiency of winter oilseed rape in northwest China. Issue 10 (24th August 2022)

• Record Type: Journal Article
• Authors: Du, Yadan; Sun, Jun; Wang, Zhen; Zhang, Qian; Cui, Bingjing; Niu, Wenquan
• Is Part Of: Archives of agronomy and soil science. Volume 68:Issue 10(2022)
• Page Start: 1385
• Page End: 1397
• Publication Date: 2022-08-24
• Subjects: Planting pattern -- nitrogen rate -- oil yield -- nitrogen use efficiency -- oilseed rape -- film mulching; Horticulture -- Periodicals; Soils -- Periodicals; 630.5
• DOI: 10.1080/03650340.2021.1894636
• Languages: English
• ISSNs: 0365-0340

Abstract

ABSTRACT: Three-year field experiments were conducted to investigate the effects of ridge film mulching plus furrow planting (RFMF) and traditional flat planting (FP) on the seed quality, oil yield and nitrogen-use efficiency of winter oilseed rape ( Brassica napus ) and to determine the optimal rate of nitrogen (N) application under the two planting patterns. Six N rates, 0, 60, 120, 180, 240 and 300 kg N ha −1, were applied under both patterns. RFMF significantly increased seed yield, oil yield, N agronomic efficiency (NAE) and N partial factor productivity (NPFP) by 15.5–43.5%, 18.0–48.3%, 2.1–70.6% and 17.9–48.2% respectively, compared with FP. The optimal N application rates were 235 and 218 kg N ha −1 under RFMF and FP, respectively. In conclusion, RFMF could be adopted with N rate of 235 kg N ha −1 for the cultivation of winter oilseed rape in northwest China to improve shoot nutrient uptake, oil yield and N use efficiencies.