不同栽培模式与密度对芸豆产量及干物质积累的影响

为明确不同栽培模式与密度对芸豆生长发育的影响,试验采用二因素裂区设计,研究3种栽培模式对芸豆农艺性状、产量和干物质积累动态的影响。结果表明：密度为10万株/hm ²时,各栽培模式芸豆的单株荚数最多、单株粒数和单株粒重最高;分枝数与茎粗随密度增加而降低。随着生育进程推进,芸豆茎叶干物质积累量呈先上升后下降的趋势,子粒呈上升趋势。110cm垄作和65cm垄作在密度为25万株/hm ²时产量最高,分别为2 525.25和2 389.23kg/hm ²;平作在密度为20万株/hm ²时产量最高,为2 008.44kg/hm ²。故黑龙江省西部半干旱地区110cm垄作,保苗株数25万株/hm ²时更易获得高产。

Effects of Different Cultivation Patterns and Densities on Yield and Dry Matter Accumulation of Common Bean

To identify the effects of different cultivation patterns and density on the growth of common bean, split plot design by two factors with three cultivation mode: 110cm (big ridge platform mode), 65cm ridges culture, flat cropping and five planting density: 10×10 ⁴, 15×10 ⁴, 20×10 ⁴, 25×10 ⁴, 30×10 ⁴ plants/hm ² was used.The common bean agronomic traits, yield and dry matter accumulation dynamic were studied. The results showed that the highest common bean pods per plant, grain number per plant and seed weight per plant was obtained in the density of 10×10 ⁴ plants/hm ²among different cultivation mode; Stem diameter and the effective branching decreased with the increase of planting density. Different cultivation patterns and density showed no significant effect on 100-seed weight. As the growth of the common bean progressed, the dry matter accumulation in stem and leaves showed aninitially increased then decreased trend, and in the grain showed increased. The 110cm and 65cm ridges culture produced highest yield of 2 525.25kg/hm ²and 2 389.23kg/hm ² in density of 25×10 ⁴ plants/hm ²; The plat culture with 20×10 ⁴ plants/hm ² population density produced highest yield of 2 008.44kg/hm ². In conclusion the treatment of 25×10 ⁴ plants/hm ² is fit for yield formation in 110cm ridge culture in the western semi-arid areas in Heilongjiang Province.