对20个(含对照)白粒型杂交玉米新品种进行品比试验,鉴定各品种的增产性、适应性、抗逆性,结果表明:黔兴7号、凉单三号、毕单13号、盛农3号、丰源205、扎单201、荷玉一号、黔单14、赫单4号9个品种推广潜力大.

Based on the variety experiment of the two new glutinous rice combinations,the yield,adaptability,stress resistance of each combination in the Xixiu area were identified in order to provide a scientific basis for the validation and promotion of new glutinous rice combination.The results showed that: the yield of ′Ann glutinous rice 1870′ were increased up to 8 421.35 kg /hm2,the contrastable yield were increased by 38.87%,and had good popularization prospect.

介绍了优质杂交稻内5优39的特征特性，从适期播种、秧田管理、适时移栽、合理施肥、科学管水、病虫害防治等方面总结了其高产栽培技术，以期为内5优39在安顺市推广种植提供参考。

13 new hybrid rice combinations which had been introduced in recent years were chosen to compare the combinations of high yield,adaptability and resistance.The results showed that Luliangyou 106,Jinyou 554 and K U 77 were better high-yield,wider adaptability,stronger resistance,which had good promotion prospects.

对杂交玉米新组合"安单4号"进行密度与施氮量的2因素3水平随机区组试验。结果表明:各处理间密度、施氮量及密度与施氮量的互作均达极显著水平。并以密度为52500株/hm2,施氮量450kg/hm2时的产量最高,为11515kg/hm2。