【摘 要】
：
芝麻是我省的主要油料作物之一。但芝麻生产中存在许多问题,最突出的是芝麻单产长期处于低而不稳状态,亩产量一直徘徊在20—40公斤。为了进一步提高单产,1986—1988年在我省
【机 构】
：
河南省农科院土肥研究所,河南省农科院土肥研究所,河南省农科院土肥研究所,
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芝麻是我省的主要油料作物之一。但芝麻生产中存在许多问题,最突出的是芝麻单产长期处于低而不稳状态,亩产量一直徘徊在20—40公斤。为了进一步提高单产,1986—1988年在我省六个地、市布置了大量田间试验,以探讨芝麻施用氮、磷化肥的增产效果与适宜用量和配比。一、材料与方法供试土壤养分变幅:有机质0.733～1.853%,全氮0.063～0.150%,碱解氮31.9～198.2ppm,速效磷2.0～20.7ppm,速效钾84.3～297.5ppm。试验采用氮磷两因素三水平9个处理的
Sesame is one of the main oil crops in our province. However, there are many problems in the production of sesame, the most prominent is that sesame long-term low and unstable state, mu yield has been hovering at 20-40 kg. In order to further improve the yield, a large number of field experiments were conducted in six prefectures and cities of our province from 1986 to 1988 to explore the yield-increasing effects, appropriate amount and proportion of sesame to apply nitrogen and phosphorus fertilizers. I.Materials and Methods Soil nutrient change ranged from 0.733 to 1.853% for organic matter, from 0.063 to 0.150% for total nitrogen, from 31.9 to 198.2 ppm for nitrogen, 2.0 to 20.7 ppm for available phosphorus and 84.3 to 297.5 ppm for available potassium. The experiment adopted nitrogen and phosphorus two factors and three levels of nine treatment
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