植物浸提物是从植物体内提取的天然活性物质。它能促进作物生长,提高粮食产量。近年来,我们对数种浸提物进行了研究和筛选,其中植物浸提物ZT—1表现较好,而且已经摸索出一套施用技术。现仅就其在小麦上的虚用效果作一介绍。一、ZT—1在不同条件下对小麦产量的影响。 1988、1989两年在所内及试验网点研究结果表明,在中低产水平(亩产400公斤以下)施用浓度0.1-1.0ppm的ZT—1,增产幅度在7.9-15.8％,平均增产11.2％。1988年所内旱地小麦返青和拔节期两次喷施0.5ppmZT-1,比对照亩增35.4公斤,增产12.9％。正定县永安点在前期不浇水的情况下喷施 Plant extracts are naturally-derived substances extracted from plants. It can promote crop growth and increase food production. In recent years, we have studied and screened several kinds of extracts, of which the plant extract ZT-1 performed well and has developed a set of application techniques. Now it’s just an introduction to its virtual effect on wheat. First, ZT-1 under different conditions on the impact of wheat yield. The results of the research conducted in 1988 and 1989 in both the experimental and experimental sites showed that the ZT-1 with the concentration of 0.1-1.0ppm was applied at middle-low yield level (below 400kg per mu), with an increase of yield of 7.9-15.8% and an average yield of 11.2%. In 1988 the dryland wheat regreening and jointing two spraying 0.5ppmZT-1, than the control acres by 35.4 kg, an increase of 12.9%. Zhengding County, Yong’an point in the early case of watering spray