Effects of soil covering on solar greenhouse pepper water use efficiency and soil nitrate N and available phosphorus contents

A greenhouse study on the effects of soil covering on pepper (Capsicum anmuum L.) water use efficiency and soil nitrate and available phosphorus contents showed that straw mulch + plastic film mulch could get the highest pepper yield water use efficiency (33.04 kg . m(-3)) and economic water use eff...

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Published inYing yong sheng tai xue bao Vol. 18; no. 6; p. 1393
Main Authors Zhou, Mao-juan, Liang, Yin-li, Chen, Jia-rui, Xiong, Ya-mei, Wei, Ze-xiu
Format Journal Article
LanguageChinese
Published China 01.06.2007
Subjects
Agriculture - methods
Capsicum - growth & development
Capsicum - metabolism
Environment, Controlled
Microclimate
Nitrates - analysis
Nitrates - chemistry
Nitrogen - analysis
Phosphorus - analysis
Soil - analysis
Water - metabolism
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Summary:A greenhouse study on the effects of soil covering on pepper (Capsicum anmuum L.) water use efficiency and soil nitrate and available phosphorus contents showed that straw mulch + plastic film mulch could get the highest pepper yield water use efficiency (33.04 kg . m(-3)) and economic water use efficiency (50.22 yuan . m(-3)), followed by plastic film mulch, with the two parameters being 18.81 kg . m(-3) and 28.57 yuan . m(-3), respectively. Significant differences of nitrate N content in 0-20 cm soil layer were observed among different treatments. The control had the highest nitrate N content (50.33 mg . kg(-1)), followed by straw mulch (31.98 mg . kg(-1)) and straw + plastic film mulch (31.96 mg . kg(-1)), and plastic film mulch and applying water preserving agent. Compared with the control, soil covering could increase the nitrate N use efficiency of pepper, and decrease the accumulation of nitrate N in plough layer. In 0-20 cm soil layer, treatment plastic film mulch had the lowest available phosphorus c
ISSN:1001-9332