Welcome to CHINESE JOURNAL OF OIL CROP SCIENCES,

中国油料作物学报 ›› 2016, Vol. 38 ›› Issue (4): 460-.doi: 10.7505/j.issn.1007-9084.2016.04.008

Previous Articles     Next Articles

Effects of different cultivation modes on yield, water use efficiency and profits in linseed (Linum usitatissimum L.)

  

  1. 1. Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Key Laboratory of Biology and Genetic Improvement of Oil Crops, Ministry of Agriculture, Wuhan 430062, China; 2. Biotechnology Institute, Gansu Academy of Agricultural Sciences, Lanzhou 730070, China
  • Online:2016-08-28 Published:2016-11-07

Abstract:

 Different planting patterns were designed to investigate linseed (oil flax, Linum usitatissimum L.) yield and water use efficiency in arid and semi-arid rainfed area in 2014 (normal rainfall) and 2015 (drought). These patterns included whole field plastic mulching with soil covering the top of mulch and bunch-seeding (T1), bunch-seeding directly on the double ridges and furrows mulched with plastic film system used in maize last season (T2), ridges mulched with plastic and row-seeding in furrow (T3), and two control, uncovered bunch-seeding (CK1) and uncovered row-seeding (CK2). In this study, earlier seedling emergency and shorter growth of duration(0-7d)were observed under mulching cultivation than uncovered plantings in two years. More shortened growth stages (16-20d) but with weaker effects on ripeness were displayed under all the planting models in drought year (2015) than in normal year (2014), and lower yield was obtained in 2015. It was suggested that the yields of linseed were significantly higher and WUE was also remarkably increased (P<0.05) in T1 and T2 patterns than in other 3 patterns. Moreover, income analysis showed that the best and the better profit were gained with T1 and T2 patterns respectively in both years. It was concluded that among the 5 patterns, T1 and T2 were optimal in arid and semi-arid regions with 350 mm rainfall.

Key words: Oil flax, Planting patterns, Field plastic mulching, Yield traits, Water use efficiency, Economic benefits