论文部分内容阅读
“登海3638”由山东省莱州农科所1995年以自交系1381为母本,9842为父本组配而成。1997年,贵州省毕节地区农业技术推广站引进,并进行连续3年的多点试验示范,于2000年11月,经贵州省毕节地区农作物品种审定委员会认定通过。在进行试验示范的同时,采用四元二次回归正交旋转组合设计和随机区组设计等试验,并结合大面积高产验证示范,提出了该组合在山区间套作条件下高产超高产群体产量结构指标和栽培技术模式:Ⅰ.产量目标10500～11250kg/hm2,每公顷种植密度67152～70704株,纯N施用量315.15～365.1kg,P2O5施用量231.45～259.05kg,K2O施用量243.15～272.1kg;Ⅱ.产量目标高于11250kg/hm2,每公顷种植密度66480～70512株,纯N施用量308.4～373.95kg,P2O5施用量224.4～267.35kg,K2O施用量232.5～283.05kg。
“Denghai 3638” from Laizhou Agricultural Science Institute in Shandong Province in 1995 to inbred line 1381 as the female parent, 9842 for the paternity made. In 1997, Bijie Prefecture Agricultural Technology Extension Station in Guizhou Province was introduced and tested for more than three years in succession. In November 2000, it was approved by the Crop Variety Approval Committee of Bijie Prefecture in Guizhou Province. In the meantime, experiments such as quadratic quadratic regression orthogonal rotation combined design and random block design were carried out in combination with large-scale high-yield demonstration. The yield of high-yield and high-yield group under the condition of intercropping in the mountain was proposed. Structure index and cultivation technique pattern: I. The production target is 10500 ~ 11250kg / hm2, planting density per hectare is 67152 ~ 70704, pure N application is 315.15 ~ 365.1kg, P2O5 application is 231.45 ~ 259.05kg, K2O application is 243.15 ~ 272.1kg ; Ⅱ. The production target is higher than 11250kg / hm2, planting density 66480 ~ 70512 per hectare, pure N application 308.4 ~ 373.95kg, P2O5 application 224.4 ~ 267.35kg, K2O application 232.5 ~ 283.05kg.