[Objective] This study aimed to promote the sustainable development of rape industry, and to meet the growing demand of urban and rural residents for vegetable oil. [Method] Field test was conducted for winter rape varieties in the national early maturing area in 2015, and their yield, main economic traits, growth period, consistency and stress resistance were evaluated comprehensively. [Result] Xiangyou 420, Qingza 12, Qianyouzao 3 and Yunyouza 16 could be applied in Baoshan City, Yunnan Province, and Yangguang 1418, Shengguang 127 and Qingza 10 （CK） should be further tested. [Conclusion] The results can be demonstratively applied in Baoshan City and other similar regions, so as to promote the development of rape industry.
[Objective] To understand the application effects of urea ammonium chloride fertilizer on maize production. [Methods] A field plot experiment was conducted to study the effects of urea ammonium chloride of different fertilization patterns on summer maize yield and yield components. [Results] Urea ammonium chloride had a long fertilizer effect and the same yield-increasing effect with urea, which could im- prove the agronomic traits and economic traits of maize apparently and the applica- tion of urea ammonium chloride with nutrient reduction of 40% （namely just use urea ammonium chloride equaled 60% pure nitrogen）, had the same yield-increasing effect with urea of traditional fertilization patterns, and input-output ratio was high and the economic benefit was remarkable. [Conclusion] To provide scientific theoretical direc- tion for large area popularization and application of urea ammonium chloride.
