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在河南省许昌市、临颍县、开封市、杞县和尉氏等地进行了西瓜喷施“农乐”试验研究。通过4年小区不同浓度试验,筛选出0.05％“农乐”为最佳浓度,于1985至1987年间进行5万余亩西瓜大面积中间试验。结果表明:西瓜喷施0.05％“农乐”,比对照增产5.3—15.3％,糖度提高1％左右,果实硬度和Vc含量亦有不同程度的提高。并看出喷施“农乐”的西瓜植株能提早开花,花量大,座果率高,西瓜可提前成熟3天左右。经多点调查,每亩比对照增加收入57.5—93.9元,经济效益显著。此项技术,具有投资少,收益大,操作简便,易于群众掌握的特点。
In the Xuchang City, Henan Province, Linying County, Kaifeng City, Qi County and Weishi and other places were sprayed watermelon “agricultural music” pilot study. Through 4 years of different concentration test in the district, 0.05% “Nongle” was selected as the best concentration. Between 1985 and 1987, more than 50,000 mu of watermelon large-scale intermediate test was conducted. The results showed that 0.05% “Nongle” was sprayed on watermelon, the yield was 5.3-15.3% higher than that of the control, the sugar content increased about 1%, and the fruit hardness and Vc content also increased to some extent. And see spray “agricultural music” watermelon plants can flowering early, spend large, fruit set high, watermelon can mature in advance about 3 days. After multi-point investigation, the increase of 57.5-93.9 yuan per acre than the control income, significant economic benefits. This technology, with less investment, large profits, easy to operate, easy to grasp the characteristics of the masses.