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Test to Longjiao 2 as test materials, the use of \quality and other aspects. The main results are as follows: 1 before flowering and setting fruit, N, P, K ratio dressing pepper plant height, stem diameter had no significant effect; significant difference between the root volume, fresh and dry weight of the whole plant processing, phosphate diammonium sulfate, potassium sulfate were 8.0,19.6 kg · 667m-2 · Ci-1 ratio dressing root volume and total dry weight, respectively, compared with CK increase of 53.29%, 1.34%. Harvest period, the different proportions dressing of N, P, K pepper plant height, stem diameter, root volume, fresh and dry weight of the whole plant is increased, there was a significant difference between treatments, to urea, diammonium phosphate, sulfuric acid potassium ratio of 4.3,4.0,19.6 kg · 667m-2 · times 1 dressing plant height, root volume, total dry weight, respectively, compared with CK increase of 8.49%, 23.69%, 61.82%. 2.N, P, K ratio dressing pepper flowering and fruit of the number of flowers per plant, number of results and the door pepper fruit set had a significant effect, there was a significant difference between the treatment. Urea, diammonium phosphate, potassium sulfate, respectively 4.3,4.0,19.6 kg · 667m-2 · Ci-1 ratio of top-dressing effect, the number of flowers per plant and the number of results in the colonization 63d, respectively 13 and 5 , representing an increase of four and a more obvious difference after; door pepper fruit set up, increased by 52.38% compared with CK. 3.N P, of K different proportions dressing on NR activity in pepper leaves, Pro and soluble sugar content have a significant effect, urea, diammonium phosphate, potassium sulfate, respectively 4.3,4.0,19.6 kg · 667m-2 · -1 the ratio of dressing in the colonization 105d, NR activity compared with CK increased by 94.82%, Pro and soluble sugar content increased by 77.74%, 10.39%. Of 4.N, P, K ratio dressing on pepper leaves Fv / Fo, Fv / Fm, Fv '/ Fm' impact of ΦPS II's significant, urea, diammonium phosphate, potassium sulfate for 4.3,8.0,19.6 kg · 667m-2 and sub-1 ratio dressing in colonization 79d, Fv / Fo, Fv / FM, Fv '/ Fm', ΦPS II respectively, compared with CK increased 28.70%, 5.16%, 5.19%, 10.30%. Suitable N, P, K ratio dressing pepper yield and improve the quality of the promotion effect, urea, diammonium phosphate, potassium sulfate, respectively 4.3,4.0,19.6 kg · 667m-2 · -1 ratio dressing pepper production reached 5180.7kg · 667m-2, an increase of 33.63% compared with CK, fruit length, fruit diameter, fruit weight, dry matter content, Vc content, content of soluble sugar and soluble solids content, respectively, an increase of 24.7% compared with CK , 14.15%, 52.04%, 128.07%, 38.44%, 21.67% and 27.24%, respectively. Fruit nitrate content of 328.69μg / g · FW, with no significant difference in CK, well below the national AA grade standards 432μg / g · FW. 6 Consolidated important indicator of growth and development, physiological characteristics, yield and quality test conditions eco-organic type soilless cultivation of pepper dressing ratio of: urea, diammonium phosphate, potassium sulfate, respectively 4.3,4.0,19.6 kg · 667m-2, times -1, N: P2O5: K2O = 1:0.65:3.80.
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