论文部分内容阅读
保水剂对移栽玉米生长发育的影响因类型、阶段的不同而有所差异。育苗时使用的A类保水剂能够促进移栽玉米前期的生长 ,但后期却有明显不利的影响 ,经其处理过的移栽玉米生育期缩短 ,地上部的干物质累积、株高以及每穗穗长、行粒数、千粒重等均有降低的现象 ,籽粒产量最低 ;而经过B类保水剂处理的移栽玉米与对照相比生育期天数一样 ,但进入灌浆期的时间较早 ,收获后玉米的穗长、穗行数、每穗籽粒重和籽粒产量均高于对照。建议在生产中使用保水剂时应该重视其对作物后期生长的潜在影响。
The effect of water-retaining agent on the growth and development of transplanted maize varies with different types and stages. The aquasorbs of type A used in seedling raising can promote the growth of pre-corn transplanting, but have obvious adverse effects in the late stage. The transplanting corn has shortened its growth period, dry matter accumulation of above-ground part, plant height, Spike length, line grain number, 1000-grain weight and so on all decreased, and the grain yield was the lowest. However, the transplanting corn treated with water-retaining agent B had the same number of days of growth as the control, but entered the filling stage earlier, Ear length, ear number per panicle, grain weight per panicle and grain yield of maize were all higher than those of the control. It is suggested that the use of aquasorb in production should pay attention to its potential impact on late crop growth.