Effects of different sowing date, planting density and fertilizer dosage on agronomic characters and yield of mountain rapeseed
Journal Title: 广东农业科学 - Year 2018, Vol 45, Issue 10
Abstract
To explore the optimal sowing date, planting density and fertilizer dosage of Yunhua Oil Early Maturing No.1 which was special high quality rapeseed variety for Yunnan Province mountainous areas, and to realize the combination of the good breeding and high yield cultivation techniques. Using three-factor and three-level orthogonal test, we had studied the optimal sowing date, planting density and fertilizer dosage of Yunhua Oil Early Maturing No.1 and their effects on main agronomic traits and yield in four different altitude regions from August 2014 to April 2016. The effects of three factors on yield from big to small was A （sowing date） ＞B （planting density）＞C （urea dosage）, sowing date and planting density had a significant impacts on yield. Sowing date showed significant impacts on growth period, lodging index, powdery mildew disease index, effective pods per plant, grain number per pod, 1000-grain weight and yield per plant; effective pods per plant, 1000-grain weight and yield per plant decreased with increasing planting density; urea dosage had no significant impacts on the growth period and agronomic traits. The optimal sowing date, planting density and fertilizer dosage for Yunhua Oil Early Maturing No.1 in Yuxi rapeseed planting mountain area were August 25-30, (1.6-2.0)×104 plants /667m2 and urea 30-35 kg/667m2.
Authors and Affiliations
Xin-zhou HU, Jin-cheng YANG
Keywords
Related Articles
- EP ID EP601903
- DOI 10.16768/j.issn.1004-874X.2018.10.003
- Views 95
- Downloads 0
Effects of different fertilization treatments on soil microbial community in core-mining subsidence area
"To investigate the effects of fertilization treatments on soil quality of mine reclaimed land，this study evaluated the effects of different fertilization treatments on soil microbial community in core-mining subsidence...
Study on diversity and color temporal and spatial distribution of early spring wildflower plant in Handan city
In this article the early spring wild flowering plants in the urban area of Handan were the subjects.The using diversity and flower color and its spatio-temporal distribution of wild flowering plants in early spring were...
Study on the removal ability of five species of Zingiberaceae to sewage
"In order to study the sewage purification ability of five species of Zingiberaceae，including Hedychium coronarium，Alpinia. spp，Hedychium. sp，H. qingchengense，and H. flavescens. The dynamic changes of nitrogen（ N）...
The host suitability of two Eulophidae spp. to three main pests of palm plants
The differences in host selection and fitness of parasitoids affect their efficacy of controlling pests. To evaluate the control efficacy of different species of parasitoids on palm leaf pests, this paper studied the fit...
Effects of low temperature pre-cooling on the inner temperature and mass loss of longan fruits treated with SO2 fresh-keeping paper before and during storage at normal atmospheric temperature
"This paper aimed to study the effects of low temperature pre-cooling in refrigeration room at 5℃ on the inner temperature and mass loss of longan fruits covered with SO2 fresh-keeping paper and stored in sealed foam box...