兴仁薏苡不同播期和种植密度的产量表现

Yield Performance of Xingren Coix with Different Sowing Dates and Planting Densities

为贵州兴仁薏苡高产高效种植提供依据，采用田间试验比较了兴仁薏苡10个播期和8个种植密度的产量表现。结果表明，兴仁白壳薏仁米品种宜于4月上旬播种，种植密度以54300～61000穴/hm2较适宜，比对照（传统播期3月24日）增产2．9％～3．5％，较传统密度（32051穴/hm2）增产6．3％～23．2％，能有效协调个体和群体结构，发挥品种产量潜力，取得较好收益，可在兴仁及其生态相似地区推广应用。

In order to provide a reference for high yield and high efficiency cultivation of Xingren coix, a field experiment was conducted to compare the yield performance of Xingren coix with 10 sowing dates and eight planting densities.Results：It was suitable to plant Xingren coix in the first ten-day period of April with the planting density of 54 300~61 000 holes/hm2 .The yield was 2.9%~3.5% higher than the control（traditional sowing date 24th March）,6.3%~23.2% higher than traditional planting density（32 051 holes/hm2 ）.The suitable sowing date and planting density could effectively coordinate the individuals and population structure,give play to yield potential and gain better benefits.Consequently,the suitable sowing date and planting density could be generalized and applied in Xingren and other similar ecological regions.