Growth and photosynthetic characteristics at fruiting period of greenhouse pepper in response to water and fertilizer coupling
2015
A:PS
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Title
Growth and photosynthetic characteristics at fruiting period of greenhouse pepper in response to water and fertilizer coupling
Publication Date
2015
Call Number
A:PS
Summary
The pepper variety Thialf Rz was selected as material to study the effects of different water and fertilizer coupling modes on growth, yield and photosynthetic characteristics at fruiting period in Hexi Corridor irrigated desert soil greenhouse. The results showed that plant height, stem diameter, maximum leaf area, leaf water content, above-ground dry weight and root dry weight of greenhouse pepper in the treatment of moderate soil moisture and fertilization, which was field capacity of 75% -90% and N 600 kg/ hm2 +P2 O5 450 kg/ hm2 +K2 O 400 kg/ hm2 fertilizer coupling mode, were significantly higher than those in other treatments. PS II light energy conversion efficiency (Fv / Fm), PS II activity (Fv / Fo), leaf actual photochemical efficiency ((phi) PS II), light chemical quenching coefficient (qP) and photosynthese (Pn )of greenhouse pepper were the highest, while the degree of photoinhibition was the lowest. The pepper yield reached 10.28 kg/ m2 , outperforming other treatments. These results indicated that the water and fertilizer coupling mode of field capacing of 75% -90% and fertilizer combination of N 600 kg/ hm2 +P2 O5 450 kg/ hm2 +K2 O 400 kg/ hm2 was suitable for the growth and development of sweet pep per in the greenhouse at irrigated desert soil of Hexi Corridor.
Journal Citation
31(2):415-421, JIANGSU JOURNAL OF AGRICULTURAL SCIENCES
Contact Information
harvest@worldveg.org
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Research > Published Articles