摘要
2004年早季在试验大田里研究了N肥施用量对赣早籼46号产量和品质的影响,在此基础上于2005年在大田试验条件下研究早稻的全层施肥技术效应,旨在探求能服务于生产的合理的栽培技术。大田试验研究结果表明:肥料全层施用保证了水稻前期的营养供应,与分次施肥法比较2种全层施肥方式都不同程度地促进了水稻分蘖的早生快发,增加了有效穗数,实现了群体总颖花数的提高。有机无机复合肥处理后期群体吸氮量比化肥处理大,叶面积指数下降小,能较长时间维持较大的光合面积,更有利于光合产物的积累和籽粒的充实,从而提高了水稻的产量和品质。由于该项技术还具有操作简单、省时省工等优点,被认为是一项切实可行的新型施肥技术。
Under the condition of the field trial in earlv of 2004, the effect of amount of nitrogen fertilizer applied on rice variety-Ganzhaoxian 46 yield and quality was studied. On the basis of 2004＇s results, the chemical fertilizer and organic ＆ inorganic compound fertilizer were applied in 2005 to study the effect of the basal dressing technique of whole plough layer of early-season rice and the aim of trial was to pursue the suitable cultivation practices adapted in massive preduetiun. The field trial＇s results showed that compared with CK, all treatments applied as the basal dressing in whole plough layer promoted and tillering more rapidly, and they had larger amount of effective panicle and total spike. The treatment of organic ＆ inorganic compound fertilizer had larger amount of nitrogen absorbed in late period, meanwhile the decrease of their scopes of leaf area index （LAI） was less, then the large leaf area for photosynthesis for a long time was benefit to dry matter accumulation and grain filled. Therefore, the yield and quality of rice were improved. In addition, this technology had the advantage of simple manipulation and little time-constuming, so it was considered to be a promising technology with the brilliant prospect.
出处
《安徽农业科学》
CAS
北大核心
2006年第19期4989-4991,共3页
Journal of Anhui Agricultural Sciences
关键词
早稻
氮肥
产量
品质
全层施肥
利用率
Early-season rice
Nitrogen fertilizer
Yield
QualiiT
Basal dressing
Nitrogen efficiency ratio
