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2014•Hubei nongye kexueRequires access

Effects of Different Levels of N,P,K Fertilizer Application on Photosynthetic Characteristics of Tobaoco

Wu Ha

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Abstract

Fourteen different application levels of N,P,K fertilizer were used to study effects of N,P,K on photosynthetic characteristics of tobaoco under natural light. The results showed that effects of different application levels N,P,K fertilizer on the photosynthetic rate, stomata conductance, intercellular CO2concn, transpiration rate, and leaf temperature of tobaoco leaves were significantly different. The photosynthetic rate, stomata conductance, transpiration rate of tobaoco with N2P1K1(N 90 kg /hm2,P 45 kg / hm2,K 112.5 kg / hm2)were maximal which were 14.145 μmol /(m2·s), 0.817 mol /(m2·s) and 12.573 mmol /(m2·s),respectively.

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Fourteen different application levels of N,P,K fertilizer were used to study effects of N,P,K on photosynthetic characteristics of tobaoco under natural light. The results showed that effects of different application levels N,P,K fertilizer on the photosynthetic rate, stomata conductance, intercellular CO2concn, transpiration rate, and leaf temperature of tobaoco leaves were significantly different. The photosynthetic rate, stomata conductance, transpiration rate of tobaoco with N2P1K1(N 90 kg /hm2,P 45 kg / hm2,K 112.5 kg / hm2)were maximal which were 14.145 μmol /(m2·s), 0.817 mol /(m2·s) and 12.573 mmol /(m2·s),respectively.

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Available abstract

Fourteen different application levels of N,P,K fertilizer were used to study effects of N,P,K on photosynthetic characteristics of tobaoco under natural light. The results showed that effects of different application levels N,P,K fertilizer on the photosynthetic rate, stomata conductance, intercellular CO2concn, transpiration rate, and leaf temperature of tobaoco leaves were significantly different. The photosynthetic rate, stomata conductance, transpiration rate of tobaoco with N2P1K1(N 90 kg /hm2,P 45 kg / hm2,K 112.5 kg / hm2)were maximal which were 14.145 μmol /(m2·s), 0.817 mol /(m2·s) and 12.573 mmol /(m2·s),respectively.

Key concepts: Transpiration, Photosynthesis, Fertilizer, Stomatal conductance, Conductance, Chemistry, Horticulture, Animal science

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