不同机插株距和取秧面积对双季早稻产量的影响(英文)

来源 :Agricultural Science & Technology | 被引量 : 0次 | 上传用户:suzhixie66
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
选用株两优819和中嘉早17为供试品种,通过不同株距和取秧面积的机插移栽,探讨机插规格对早稻产量的影响。结果表明,不同机插规格导致不同基本苗数,产量与移栽基本苗数显著相关。基本苗数随移栽株距的减小和取秧面积的增大而增多。机插漏蔸率随着取秧面积的增加下降。叶面积指数、干物质总积累量的大小与机插不同规格的基本苗数量高度相关。株距11.5 cm处理的平均产量高于株距13.8 cm处理的平均产量。株距13.8 cm处理中,随着取秧面积增大产量提高,产量最高的取秧面积是2.31 cm~2,株两优819产量为8 174.16 kg/hm~2、中嘉早17产量为7 925.54kg/hm~2;株距11.5 cm~2处理中,产量最高的为取秧面积1.83 cm~2处理,继续增加取秧面积产量下降,株两优819产量为8 492.94 kg/hm~2、中嘉早17产量为8 000.23 kg/hm~2。因此,早稻适宜机插规格,株距11.5 cm、取秧面积1.83cm~2,常规稻品种取秧面积亦可增至2.23 cm~2。 The strains ZL1819 and Zhongjiazao17 were used as tested varieties. The effects of machine specifications on the yield of early rice were studied by using different plant spacing and planting area. The results showed that the different specifications of mechanical plugging lead to different numbers of basic seedlings, yield and seedlings transplanted significantly related. The number of basic seedling transplanting plants with the distance reduction and pick-up area increased. Machine insertion leakage rate with the increase of seedling area decreased. The leaf area index and total dry matter accumulation are highly correlated with the number of basic seedlings with different specifications. The average yield of 11.5 cm treatment was higher than the average yield of 13.8 cm treatment. In the treatment of 13.8 cm of plant height, the area of ​​seedling with the highest yield was 2.31 cm ~ 2, the yield of Zhuliangyou 819 was 8 174.16 kg / hm ~ 2 and the yield of Zhongjian 17 was 7 925.54 kg / hm ~ 2. In the treatment of 11.5 cm ~ 2 plant height, the highest yield was 1.83 cm ~ 2 for the transplanted seedlings, and the yield for the seedling transplanting continued to decrease. The yield of Zhuliangyou 819 was 8492.94 kg / Kerry 17 production was 8 000.23 kg / hm ~ 2. Therefore, the early rice is suitable for machine specification, plant spacing 11.5 cm, seedling area 1.83cm ~ 2, conventional rice seedling area can also be increased to 2.23 cm ~ 2.
其他文献
期刊
期刊
期刊
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
1.概述rn我公司为某炼油厂制造了一台换热器,规格型号为BES700-2.5-125-6/25-2 I,管程介质为富含湿H2S、HCL的油气,管板材料选用Q345R(N),δ58mm,换热管材料选用08Cr2AlMo,φ
期刊
意大利米兰的一项单中心研究在2002.3~2004.7之间选择了249例冠状动脉左主干(LMCA)狭窄的病例,其中107例接受经皮冠脉介入(PCI)药物支架(DES)植入,142例接受冠脉搭桥手术(CAB
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生、测量监控等方面人手,介绍了S226海滨大桥
期刊
为提高对玉米中后期叶斑病的防治能力,在山东省夏津县进行了6种杀菌剂的防治示范工作。从药剂的速效性、持效性及保叶效果看,供试药剂中50%苯甲·丙环唑水乳剂、430 g/L戊唑