Low seeding rate and very wide rows for wheat, on shallow soil in a low rainfall zone with winter drought

To provide better guidelines on safer methods of sowing wheat on shallow soil in the low rainfall zone; especially in terms of row spacing seeding rate, variety, depth of soil and soil type.

为浅土层低降雨区小麦的安全播种方法提供更完善的指导方针，尤其针对行距、播种量、品种、土层深度及土壤类型等方面。