“猛发兜”水稻高产的第二次革命

五年前,袁隆平提出在南方稻区实施超级杂交稻种三产四丰产工程,即运用超级杂交稻技术成果,用3亩(667m2,下同)地产出现有4亩地的粮食,大幅提高现有水稻单产和总产,但强调要良种、良田、良法三良配套.科技的进步带动生产力的飞跃,2011年9月18日,令国人振奋的日子,袁隆平的超级杂交稻百亩试验田平均亩产达926.6公斤!所以说水稻高产的第一次革命从良种开始.     

氮肥施用量和施用方法对超级杂交稻纹枯病发生的影响

 The experiments of resistance of different super hybrid rice (SHR) combinations to sheath blight (ShB) (Rhizoctonia solani Kühn) and effect of nitrogen fertilizer (NF) dosage and fertilization methods on ShB occurrence were conducted in Hangzhou during 2005-2006. The results indicated that the resistance level of different SHR combinations to ShB were significantly different. For the same combination, the severity of ShB depends on the seeding and transplanting period. The disease index showed a positive correlation with the nitrogen dosage, but depended on resistance level of combination. The ShB severity of susceptible combination showed high positive correlation with NF dosage. At the flowering stage, there were no effect of nitrogen fertilization method on the occurrence of ShB, but the fertilization method showed significantly effect at dough stage. The occurrence of ShB was significantly affected by the supply rate of nitrogen at different rice growing stage. When the total NF supply was 165 kg per hectare, the occurrence of ShB with high NF rate (80%) at early stage (as basal and tillering fertilizer) and low rate (20%) at late stage (as panicle fertilizer) was more serious than that of low NF rate (60%) in early and high NF rate (40%) as panicle fertilizer. The result was the reverse of conventional viewpoint about that high NF supply at rice late growing stage might lead to severe occurrence of ShB.     

棉花、水稻高产三大宝——早衰灵、谷哥、硅锌肥——富强“八佳益”牌产品在棉花、水稻高产优质栽培上的应用

八佳益TM牌肥料是武汉富强公司研制开发的高科技产品。其中八佳益TM早衰灵具有预防棉花等作物早衰、壮苗保花、增产优质的功效;八佳益TM谷哥具有促进水稻等作物壮苗早发、抗倒抗病、高产质优的作用;八佳益TM硅锌肥具有缓释长效提供硅、锌等营养物质的多营养颗粒肥料。     

“绿舟”水稻免追肥在水稻上的应用效果

随着种植户对省时高效的新型肥料的需求,通过在水稻上使用"绿舟"水稻免追肥产品,不仅能满足水稻营养需求,并且后期不追肥,能促进水稻分蘖,增加成穗率及千粒重,和对照施肥比标准亩增产37.6kg。     

恩施市水稻“坐蔸”的原因及防治措施

恩施市属一季中稻区,常年水稻坐蔸现象突出,经调查分析由冷浸田、沼泽化田、洪水淹田引起,致根系中毒不发蔸所致。笔者经走访农户,认真分析总结出行之有效的防治措施。     

随州水稻“鹰钩嘴”形成的主要原因及预防对策

水稻“鹰钩嘴”,也叫“旱青立”、“张口瘪”。典型的就是水稻抽穗后颖壳不闭合,颖壳畸形,且弯曲得像鸟嘴,颖壳之内很少结实,即使有,也只有很短的青粒米,不成熟,稻穗直立不弯腰。     

“一喷多防”在水稻病虫害防控上的研究与应用

绿色、环保、经济、高效已成为当前农作物病虫害防控的首要目标和要求,通过多年田间试验和研究,提出水稻病虫害"一喷多防"防控新模式,并在田间推广应用。     

“旱涝急转”对水稻生长发育的影响及其有关问题的思考

近年来我国很多地区,尤其是长江中下游地区发生了快速、剧烈的"旱涝急转"事件,造成农作物大幅度减产。介绍"旱涝急转"的概念及内涵,阐明干旱胁迫、湿涝胁迫及"旱涝急转"对水稻生长发育、产量、品质、根系活力、生理特性的影响以及不同水稻基因型对其反应的差异性,概述水稻"旱涝急转"最新研究进展,提出"旱涝急转"灾害的预防与补救措施,就培育抗旱和耐涝水稻品种的研究前景进行展望。     

“十二五”计划支持防治水稻螟虫等杀虫剂的开发

十二五安排的农药项目,将绿色生态的理念贯穿到研发,生产,使用的全过程。其中针对杀虫剂的课题:防治水稻螟虫等重大害虫的农药创制开发。研究内容:针对水