两种十字花科作物的施硫效应

Effect of sulphur fertilizer sources appiled to two kinds of cruciferae crops

在湖北棕红壤地区对十字花科作物油菜及小白菜施用不同硫肥的结果显示, 施用硫肥对作物的长势、生物量及产量有明显的促进作用, 其中澳大利亚含硫颗粒复合肥增产效应极显著, 增产达64 % 。

In this study a field experiment was undertaken on red soil which is the major soil types of Hubei Province.We chose the red soils to test the effectiveness of sulphur fertilizers applied to rapeseed and pakchoi( Brassica chinensis )in Jiang Xia district of Wuhan.We compared with different sulfur fertilizers including gypsium,elemental sulphur and Australian sulfur containing compound fertilizer.The results demonstrated that sulphur addition can greatly improve the growth of plants such as plant height,fresh weight,dry weight and grain yields.The average order of biomass production was NPK+A>NPK+G>NPK+E.The S contents of plants and S contents of soils were higher in the treatments receiving S than no sulphur addition. Futher studies should be taken to find the most adequate way to add the S with the other nutrients.