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甜叶菊是一种新的糖源植物,其叶片含糖甙6～12%,甜度为蔗糖的300倍.我国于1977年引进,在25个省市试种成功.为了探索氮、磷、钾肥对甜叶菊叶片产量的效应,于1980年设计8个处理组合进行田间予试,结果表明,氮磷钾肥混施亩产干叶236.6斤,比不施肥增产42.60%,磷钾肥增产33.2%,氮钾肥增产32.1%,钾肥增产26.60%.为了验证予试的可靠性,在1981年又重复试验,并对试验结果进行统计检验,其结果与1980年基本一致,现总结如下.
Stevia is a new sugar source plant with 6-12% glycosides and 300 times sweetness as sucrose.Our country was introduced in 1977 and succeeded in experimenting in 25 provinces and cities.In order to explore nitrogen, phosphorus, The effect of potash fertilizer on the yield of stevia leaves was studied. Eight treatment combinations were designed for field trial in 1980. The results showed that the yield of N, P and K was 236.6 kg per mu, 42.60% more than that without fertilization, 33.2% 32.1% increase of nitrogen and potassium fertilizer and 26.60% increase of potash fertilizer.In order to verify the reliability of the pre-test, we repeated the test in 1981 and conducted statistical tests on the test results. The results are basically the same as in 1980 and are summarized as follows.