【摘要】 试验地点在青海省土壤肥力中等的川水地,采用单因素设计,随机取样。试验结果显示,氮、磷肥施用量较高时,有效分蘖、单位穗数增加;氮肥中等用量时,有效粒数增加;氮、磷肥用量过高时,千粒重降低,麦地疯长;低肥状况时,千粒重也降低。每公顷施尿素525kg、过磷酸钙615kg时,单位穗数、每穗粒数和千粒重三项指标最大,产量最高,是该类地区理想的施肥配比。更多还原

【Abstract】 Experiment is located in the medium of fertility of soil Qinghai.Single factor design was adopted,random sampling.Experiment results showed nitrogen phosphorus fertilizer apply higher,effective seed granule,unit spike number are increment.While nitrogenous dosage is middling effective granule number increment,Nitrogen,phosphorus fertilizer dosage applied over high,thousand kernel weight would be lower and wheat hypertrophy.Thousand kernel weight also lower when lower fertility conditions.Spike number,granule number of per spike and thousand granule weight are the biggest when apply nitrogen 525 kg and superphosphate 615kg,Wheat yield is the tallest.It is the best fertility formulation in the location.更多还原