Study on Regularity of Water and Fertilizer Requirement With the Drip Irrigation of Melon Growing and Spatial Heterogeneity of Soil Salinity(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Title:: Study on Regularity of Water and Fertilizer Requirement With the Drip Irrigation of Melon Growing and Spatial Heterogeneity of Soil Salinity

Author(s):: JI Lidong1; YANG Jianguo1; FAN Liqin1; LI Jianru2; ZHANG Zhiming2; SHANG Hongying1; (1.Institute of Agricultural Resources and Environment，Ningxia Academy of Agriculture and Forestry Sciences，Yinchuan，Ningxia 750002；2.Agricultural Technology Extension and Service Center of Pingluo County，Shizuishan，Ningxia 753400)

Keywords:: drip fertilization; melon; water requirement regulation; pattern of requirement of fertilizer; spatial heterogeneity of soil salinity

Abstract:: Taking ‘Elizabeth’ melon as material,the indicators such as soil moisture，total salt and N，P，K of plant were monitored for a long term to study regularity of water and fertilizer requirement with the drip irrigation of melon growing and spatial heterogeneity of soil salinity.The results showed that the cumulative water consumption of the greenhouse melon for the whole growth period was 387.4 mm and the average daily water consumption volume was 3.66 mm/d.2.71 kg N，0.72 kg P2O5 and 3.29 kg K2O were absorbed by 1 000 kg melon(N∶P2O5∶K2O=3.76∶1∶4.56).The content of soil salt distribution appeared on the whole surface accumulation.With the cutoff 60 cm，the upper showed half circle distribution，lower mostly face shape or strip shape distribution.

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Last Update: 2015-09-01