栽培因子对小麦黑胚病发生的影响分析

研究了播量、播期、灌水、施肥等栽培因子对小麦黑胚病发生的影响.试验结果表明:播量对小麦黑胚病的影响不大.随着播期的推迟,小麦黑胚率呈下降趋势,但不同品种表现略有差异.灌水次数和灌水时期对小麦黑胚病均有影响,但灌水次数影响较大,随灌水次数的增加黑胚率升高,花期灌水有利于黑胚病的发生.在常量追肥条件下,随追肥次数的增加黑胚率升高.

Effects of Cultivation Factors on the Incidence of Wheat Black Point

The influence of cultivation factors on the incidence of wheat black point was investigated in filed.The result indicated that different seeding rate has little relation to the incidence of black point.Along with the delay of planting date,the rate of diseased grains tends to decline.While different varieties have the difference slightly.The times of irrigation and the period of irrigation all have effect on the occurrences of black point,but the times of irrigation is significant.With the increase of times the rate of diseased grains incline to raise.Irrigating at flowering stage will aggravate the occurrence of black point.Under the condition of common amount of topdressing,the rate of diseased grains will increase with the times of using fertilizer increasing.