种植密度和氮肥对‘绿雄90’西兰花产量与商品性的影响

›› 2010, Vol. 22 ›› Issue (6): 824-828.

种植密度和氮肥对‘绿雄90’西兰花产量与商品性的影响

刘伟明¹,何道根²,何贤彪²

¹台州科技职业学院,浙江黄岩318020；²浙江省台州市农业科学研究院,浙江临海317000

收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-11-25 发布日期:2010-11-25

Effect of planting density and nitrogen dosage on the yield and commercial quality of broccoli cv. Luxiong 90(Brassica oleracea L.var.italica Planch)

LIU Wei-ming;HE Dao-gen;HE Xian-biao

¹Taizhou Vocational Institute of Technology, Huangyan 318020,China; ²Taizhou Institute of Agricultural Sciences, Linhai 317000, China

Received:1900-01-01 Revised:1900-01-01 Online:2010-11-25 Published:2010-11-25

摘要/Abstract

摘要： 为明确不同种植密度和氮肥用量组合对秋播西兰花产量和品质的影响,进行种植密度和氮肥用量两因素试验。结果表明,密植少氮处理的定植至现蕾天数极显著地小于稀植多氮处理。中、高水平的种植密度和氮肥用量,蕾粒明显变细。较高的种植密度与氮肥用量有利于提高西兰花单位面积产量。中等水平的种植密度和氮肥用量则更有利于提高西兰花保鲜球合格率,稀植少氮则保鲜球合格率明显下降。结合生产实际,兼顾优质、高产、高效,并考虑保鲜外销之因素,西兰花种植密度以2 500～2 800 株/666.7m²,氮肥用量以纯氮25～40 kg/666.7m²,在中、高肥力水平的情况下,取其中下范围为宜。

关键词: 西兰花, 种植密度, 氮肥用量, 产量, 商品性

Abstract: Two\|factor experiment with different nitrogen dosage and planting density were studied to provide further evidence for effect of nitrogen dosage and planting density on the yield and commercial quality of autumn broccoli. The results showed that the days from field planting to squaring of high density planting and less nitrogen treatment were significantly less than that of spaced planting and more nitrogen treatment. The diameter of flower bud significantly decreased in the treatments of middle or high planting density and nitrogen dosage. The broccoli unit yield increased under high planting density and nitrogen dosage treatment. Furthermore, it was beneficial to improving the pass rate of fresh broccoli under the middle level of planting density and nitrogen dosage, and the pass rate significantly decreased under the low level of planting density and nitrogen dosage. According to the field conditions, the planting density should be 2 500-2 800 plants per 666.7m² and pure nitrogen dosage should be 25-40 kg per 666.7m² in consideration of high quality, high yield, high effect, and fresh export. In the condition of middle or high fertility, the lower range of plant density and nitrogen dosage was more suitable.

Key words: broccoli (Brassica oleracea L. var. italica Planch), planting density, nitrogen dosage, yield, commercial quality

刘伟明;何道根;何贤彪. 种植密度和氮肥对‘绿雄90’西兰花产量与商品性的影响[J]. , 2010, 22(6): 824-828.

LIU Wei-ming;HE Dao-gen;HE Xian-biao. Effect of planting density and nitrogen dosage on the yield and commercial quality of broccoli cv. Luxiong 90(Brassica oleracea L.var.italica Planch)[J]. , 2010, 22(6): 824-828.

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