›› 2018, Vol. 30 ›› Issue (3): 413-419.DOI: 10.3969/j.issn.1004-1524.2018.03.09

• Horticultural Science • Previous Articles     Next Articles

Effect of planting density, fertilizer level of nitrogen and boron on yield of purple pepper Fengziyun No.1

SUI Yihu, HU Nengbing, TANG Jinbao   

  1. College of Agriculture, Anhui Science and Technology University, Fengyang 233100, China
  • Received:2017-07-15 Online:2018-03-20 Published:2018-03-21

Abstract: In order to optimize the main cultivation factors that affect the production of pepper crops, the method of three-factor five-level quadratic orthogonal rotation design was used to study the effects of different density (x1), nitrogen fertilizer level (x2) and boron fertilizer level (x3) on the yield of purple pepper Fengziyun No. 1. The results showed that under the experimental conditions, the linear effect of the three factors on the yield of pepper was positive and very significant, and x2 had the greatest impact on production, followed by x3, and x1 had the least impact. The effect of the quadratic term was negative, and x12 had the greatest impact on production, followed by x32, and x22 had the least impact. The interaction effect of x1x3 was very significantly positive, the marginal effect of x1 was the largest. When the planting density was 4 123 plants per 667m2, the nitrogen fertilizer was 40.020 kg per 667m2 and the boron fertilizer was 1.000 kg per 667m2, the fresh pepper fruit weight was the highest of 3 206.678 kg per 667m2. The results of comprehensive factor analysis showed the optimized factor combination of high yield of Fengziyun No. 1 with a yield of more than 2 500 kg per 667m2 at 95% confidence was that density 3 903-4 172 plants per 667m2, nitrogen fertilizer 31.186-36.081 kg per 667m2, boron fertilizer 0.724-0.880 kg per 667m2.

Key words: pepper, density, nitrogen fertilizer, boron fertilizer, yield

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