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西瓜“双增剂”是上海市农科院土壤肥料研究所耕作组研制的西瓜专用颗粒剂,从1986～1988年在上海市郊青浦县和南汇县西瓜品种上进行效应试验,具有显著的增产效果和增甜功能。该制剂使用方便、安全可靠、效果稳定,在瓜秧移栽定植时,只需将几粒“双增剂”放于瓜塘内的瓜秧根际附近即可。现将试验结果报告如下。一、“双增剂”的增产效果三年来,在青浦县青紫泥和南汇县夹沙泥两种土壤类型、五个西瓜品种上,设置施用“双增剂”和对照两个处理,每处理3个重复,小区面积0.05～0.2亩,随机排列。施肥和各项管理措施相同,按小区采收西瓜产量,结果见表1。由表1可见,七个试验结果均有不同程度的增产作用,用配对方法对试验产量结果进行显著性测验:
Watermelon “double increase agent” is the Shanghai Watermelon Institute of Soil Science and Fertilizer Institute developed group of special watermelon granules from 1986 to 1988 in Shanghai suburbs Qingpu County and Nanhui County Watermelon varieties on the effect of tests, with significant yield-increasing effect And sweetener function. The preparation is easy to use, safe and reliable, and has stable effect. When transplanting and planting melon seedlings, only a few grains of “dual augmentation agent” can be placed near the melon seedling root rhizosphere in the melon pond. The test results are reported below. First, the “double increase agent” increasing effect In the past three years, in Qingpu County, purple mud and Nanhui County sand sand two types of soil, five watermelon varieties, the application of “double increase agent” and control two treatment, each treatment 3 repeat, the plot area of 0.05 ~ 0.2 acres, arranged randomly. Fertilization and the management of the same, according to plot harvest watermelon production, the results shown in Table 1. As can be seen from Table 1, the results of the seven tests all have different degrees of increase in yield, and the paired methods are used to test the output of the test significantly: