检索规则说明:AND代表“并且”;OR代表“或者”;NOT代表“不包含”;(注意必须大写,运算符两边需空一格)
检 索 范 例 :范例一: (K=图书馆学 OR K=情报学) AND A=范并思 范例二:J=计算机应用与软件 AND (U=C++ OR U=Basic) NOT M=Visual
机构地区:[1]河北农业大学农学院 [2]烟台宏伟农副产品有限公司,山东烟台265508
出 处:《麦类作物学报》2006年第2期139-143,共5页Journal of Triticeae Crops
基 金:国家"粮食丰产科技工程"河北省课题(2004BA520A07);河北省教育厅科技计划项目(2001114)
摘 要:通过对氮、磷、钾三因素旋转回归设计,以小麦产量和品质性状为目标,对强筋冬小麦品种藁8901的优化施肥技术方案进行了研究。结果表明,氮、磷、钾三因素对藁8901的产量和品质指标的影响各不相同。对产量和品质指标的作用大小顺序依次为氮〉磷〉钾,氮肥是影响该品种产量和品质指标的首要因素。通过藁8901产量和品质指标与氮、磷、钾三因素关系的回归方程进行多目标综合决策,模拟筛选出多个优化施肥量厦配合方案。入选方案的施肥量范围为N239.25~300kg/hm^2,P2O5 150~300kg/hm^2,K2O 112.5~225kg/hm^2。With a rotating regression design of three decision making variants, namely, nitrogen, phosphorus and potassium, the optimizing fertilization for a strong gluten winter wheat cultivar Gao 8901 were studied, with grain yield and grain quality parameters as target functions. The results showed that, the effects of nitrogen, phosphorus and potassium on grain yield and quality were different, generally, the effects on grain yield and quality were in the order: nitrogen〉phosphorus〉potassium. Nitrogen was the most important factor affecting yield and quality parameters. Multiple target decision making was conducted by synthesizing score method according to the regression equations between grain yield or quality parameters and the three factors, i.e. nitrogen, phosphorus and potassium. Totally twenty superior fertilizing projects were selected for application in wheat production. The range of fertilizing rates of the selected projects was N 239.25-300 kg/hm^2, P2O5 150-300 kg/hm^2, K2O 112.5-225 kg/hm^2.
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在载入数据...
正在链接到云南高校图书馆文献保障联盟下载...
云南高校图书馆联盟文献共享服务平台 版权所有©
您的IP:216.73.216.28