8Mengel K Kirkby E A 等.植物营养原理[M].北京:农业出版社,1987,12..
9Fuyu Ma, Junhua Li, Mingsi Li. Increased yield mechanismdrip irrigation under mulch and main coordination techniques[C]//. Economic and Environmental Sustainable Development in Middle and Western Region of hinain 21st Century. Inner Mongolia: Inner Mongolia People' s Publishing House. 1999.
10Hagin J, Lowengart A. Fertigation, state of the art. Proceeding No 429, International Fertilizer Society[M]. York, UK: International Fertilizer Society, 1999:1-23.