论文部分内容阅读
冀北高原栽培春小麦历史悠久,但由于以旱地种植为主,故产量低而不稳。为发展两高一优农业,1994年坝上四县共同承担了坝上高寒区水浇地春小麦亩产500公斤规范化栽培试验任务,初步积累了高寒区水浇地春小麦亩产500公斤配套技术经验。一、土壤条件据资料介绍,每生产50公斤春小麦需吸收氮1.5公斤,磷
Spring wheat cultivation in the northern Hebei Plateau has a long history, but due to dryland cultivation-based, low yield and instability. In order to develop two high and one excellent agriculture, in 1994, Bashang County jointly assumed the standardized cultivation test task of 500 kg per mu of spring wheat in the irrigated area of dam in the alpine region, initially accumulating the matching technical experience of 500 kg per mu of spring wheat irrigated in the alpine region . First, the soil conditions According to information, each production of 50 kg of spring wheat need to absorb 1.5 kg of nitrogen, phosphorus