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以冬作马铃薯丽薯6号为参试品种进行不同密度试验,探讨不同密度对冬马铃薯丽薯6号生物性状及产量、产值的影响。结果表明:种植密度对马铃薯生育期的影响不显著;株高随着密度增加随之增高;植株分枝和茎粗随种植密度增加反而减少;单株结薯个数增多,单薯重量减轻,单株产量降低。种植密度为135 000塘/hm2时产量最高,折合单产达56 968.73 kg/hm2;其次为120 000塘/hm2,折合单产达56 031.67 kg/hm2;种植密度为120 000塘/hm2时产值最高,折合单产值达139 995.15元/hm2;其次为105 000塘/hm2,折合单产值达138 534.48元/hm2。通过试验结果综合分析,在玉溪市生态环境条件下,冬马铃薯丽薯6号最佳种植密度在105 000~120 000塘/hm2,在此种植密度条件下马铃薯丽薯6号的田间生长综合性状较好,同时能获得较高的产量和产值。
The effects of different densities on the biological traits, yield and output value of winter potato (Potato) sweet potato 6 were studied with winter potato Potato No. 6 as tested varieties. The results showed that: the planting density had no significant effect on the growth of potato; the plant height increased with the increase of density; the branching and stem diameter decreased with the increase of plant density; the number of tubers per plant increased, the weight of single potato decreased, Yield per plant decreased. The highest yield was obtained when the planting density was 135 000 ponds / hm2, yield was equivalent to 56 968.73 kg / hm2, followed by 120 000 ponds / hm2, equivalent to 56 031.67 kg / hm2. When the planting density was 120 000 ponds / hm2, Equivalent to a single output value of 139,995.15 yuan / hm2; followed by 105,000 ponds / hm2, equivalent to yield of 138,534.48 yuan / hm2. Based on the comprehensive analysis of the test results, under the conditions of ecological environment in Yuxi City, the optimum planting density of winter potato and sweet potato No. 6 was between 105 000 and 120 000 ponds / hm2. Under the planting density, Better, at the same time get higher output and output value.