滴灌田‘大西洋’马铃薯种植密度对产量及效益影响

马铃薯的种植密度对马铃薯产量和经济效益具有重要影响。为明确不同种植密度对马铃薯产量、品质及经济效益的影响,以马铃薯加工品种‘大西洋’为试验材料,设5个密度处理,试图找出合适的种植密度。5100株/667m²处理马铃薯地上部与地下部生物量最高为106.57和156.58 kg/36m²,此时地下部与地上部生物量比达到最小,为1.47。5100株/667m²处理块茎产量显著高于其他处理,为2710 kg/667m²,此时经济效益为3504元/667m²。5400和4800株/667m²处理产量分别为第二与第三,分别为2418和2277 kg/667m²,此时经济效益分别为3033与2888元/667m²。5100株/667m2处理干物质与淀粉含量显著高于其他处理,分别为20.41%和14.61%。研究表明,当地‘大西洋’的种植密度以5100株/667m²为宜。

Effect of Planting Density on Yield and Benefit of Potato Variety 'Atlantic' Planted in Drip Irrigation Field

Planting density has an important impact on potato yields and economic benefits.In order to understand the effects of different planting densities on potato yields,qualities and economic benefits,the potato processing variety'Atlantic'was used as experimental material,and five density treatments were set up to try to find out the suitable planting density.The highest aboveground and underground biomass of 5100 plants/667m^(2 )were 106.57 and 156.58 kg/36m²,respectively,and the ratio of underground to aboveground biomass reached the minimum of 1.47.The tuber yields of the 5100 plants/667m² were significantly higher than those of other treatments,which was 2710 kg/667m2,and the economic benefit at this density was 3504 Yuan/667m².The yields of 5400 and 4800 plants/667m^(2 )were ranked in the second and the third place,which was 2418 and 2277 kg/667m²,respectively,and the economic benefits were 3033 and 2888 Yuan/667m².The dry matter and starch contents of 5100 plants/667m² were significantly higher than those of other treatments,which were 20.41%and 14.61%,respectively.The results showed that the suitable planting density of'Atlantic'was 5100 plants/667m².