为了充分利用鄂东地区的温光资源,实行马铃薯与早晚双季稻连作,通过科学搭配适宜良种,精细整地,适时播种,培育壮秧,配方施肥,合理管水,适度调控等技术措施,实现高产高效。
山药是武穴市传统特色经济作物,常年种植面积在2000hm^2以上,是武穴市北部山区农民增收致富的重要来源之一。正常情况下,一般667m^2山药产量为1250~1750kg,在武穴市上市期为11月下旬至次年2月。为不断挖掘山药增产增收潜力,延长上市期,我们进行了山药大棚促成栽培试验,现将总结如下:
EK288F1是湖北农科院选育的转基因抗虫棉杂交种,2008年通过湖北省审定.当年武穴引进EK288F1试种,结果表明该品种品质优、抗性强、产量高、效益好.从2009年开始,连续3年选为棉花高产创建万亩示范片统供品种,并作为全市大面积主导品种推广,3年全市累计应用面积1.7万hm2,占棉花总面积的65%.在自然灾害频发的3年中,每公顷皮棉产量稳定在1500 kg以上,与前3年相比,每公顷皮棉增加157.5 kg.2011年武穴棉花高产创建万亩示范片统一应用EK288F1,涌现出了许多高产田块和获得高效的农户,10月10日经湖北省棉花高产创建专家组现场验收,龙坪镇五里村棉农胡利兵种植0.5 hm2,每公顷平均成铃152.1万个,子棉产量7500 kg,夺全省单产第一名,产值6万元,经济效益明显.
佛手山药是武穴市的一个传统特色经济作物,常年种植面积在2000hm2以上,已成为农民增收致富的重要经济作物之一.因品种独有,品质优良,风味独特,营养丰富,倍受全国各地消费者的青睐.近年来,山药炭疽病在武穴市山药主产区频发,个别年份猖獗流行,给山药生产造成了较大损失,在一定程度上制约了山药产业化发展.为了寻求防控山药炭疽病的有效办法,2010年我们选用了几种不同的防控措施进行防效对比试验,现将有关试验情况总结如下.
Systematic survey method was used to investigate impacts of different waterlogging duration at tillering stage on growth and development of the super hybrid rice and conventional rice.Disaster countermeasures of rice and key technical measures were also proposed.The yield of the super hybrid rice and conventional rice decreased with the longer duration of flooding,mainly due to reduced effective panicles,panicle and grain weight,and longer the whole growth period.Tolerance of super rice to flooding stress was stronger than that of conventional rice.Autumn planting of rice turned an important remedy in post-disaster,with timely early sowing and increased seeding rate.
The influences of leaf age and density in no-tillage laying seedling pattern on yield and yield construction of rapeseed Huashuang No.5 has been researched. The results indicated that leaf age, density and their mutual effect had significant influences on yield. Puring the stages of 4~6 leaf age,the yourger the laying rage seedling age,the higher the yield. When the density was 9×104/hm2 12×104/hm2 or 15×104/hm2, the denser the plant,the higher the yield. When the seedlings were at 4-leaf age, at the density of 12×104/hm2 and 15×104/hm2,the yield had no significant difference from CK; the yields of other leaf ages and density treatments decreased significantly or extremely significantly compared with CK.
武穴市棉花常年播种面积6 700 hm2,最近10年平均单产1 517 kg/hm2,年皮棉总产量1万t以上,商品率达95%以上,是湖北省优质棉花板块基地建设县市之一,1957年被国务院授予"皮棉单产百斤县",1997年通过湖北省"双百棉示范县"建设验收,2008年参加湖北省棉花高产创建活动,2009年、2010年被农业部列为棉花万亩高产创建示范县(市)之一,在2008年、2009年棉花高产创建活动中先后取得了湖北省万亩高产示范畈全省综合排名第一名、百亩示范畈全省单产排名第一名、第三名,高产优胜农户全省单产排名第二名的示范效果,受到了各级领导专家的好评,被认为是鄂东地区棉花高产典型代表.
介绍了武穴市2008年和2009年棉花高产创建情况,分析了武穴市棉花高产创建存在的规模不大、密度不足、施肥不当、气候异常、水利不便、效益不稳等六大突出问题,提出了发展规模生产、依托科技增产、技术革新、创新服务、整体联动、修整水利等对策。
With rice T-you 207 as test material, yield and its constitution factors of no-tillage cast seedling late rice under different sowing amount and seedling age were studied. The results showed that yield was affected significantly by sowing amount and seedling age. The shorter the seedling age, the higher the yield with seedling age of 30 days, 35 days and 40 days. The smaller the sowing amount, the higher the yield with sowing amount of 60 g·m-2, 90 g·m-2 and 120 g·m-2. Seedling age of 30 days and sowing amount of 60 g·m-2 was the best combination.