不同种植密度对茴香菜苗生长及产量的影响
Effects of different planting densities on growth and yield of fennel seedling
为了解宁夏海原县茴香苗菜生长适宜的种植密度,以茴香品种民勤2号为试验材料,采用单因素随机区组设计,开展了M1(低密度)、M2(中密度)和M3(高密度)3种种植密度的大田试验,分别测定30 d内茴香苗菜土壤含水量、叶绿素含量、株高、根系性状及单位面积鲜(干)产量。结果表明,随着生长时间的推进,M1、M2和M3茴香苗菜株高、主根长、单位面积鲜(干)产量均呈逐渐增加的趋势,在出苗后30 d, 茴香苗菜株高大小依次为M2>M1>M3,主根长度大小依次为M2>M3>M1,单位面积鲜(干)产量大小依次为M2>M3>M1。综上所述,民勤2号茴香苗菜目标鲜产量为170~220 kg·667 m-2时,民勤2号茴香苗菜生产的适宜密度是5万~7万株·667 m-2。
In order to find out the suitable planting density of fennel seedling in Haiyuan county, Ningxia, fennel cultivar Minqin No. 2 was used as the test material, and carried out three planting densities of M1 (low density), M2 (medium density) and M3 (high density). Soil water content, chlorophyll content, plant height, root character and fresh (dry) yield per unit area were measured within 30 days. The results showed that with the extension of growth time, the plant height, taproot length and fresh and dry yield per unit area of M1, M2 and M3 aniseed seedlings showed a gradual increase trend. Thirty days after emergence, the increase trend of plant height of aniseed seedlings was M2>M1>M3, and the increase trend of taproot length was M2>M3>M1. The growth trend of fresh and dry production per unit area was M2>M3>M1. In summary, when the target yield of Minqin No. 2 fennel seedling is 170-220 kg·667 m-2, the appropriate density of Minqin No. 2 fennel seedling is 50 000-70 000 plants·667 m-2.
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宁夏回族自治区农业科技自主创新项目(NGSB-2021-16)
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