4Burillo G S, Delirhasannia R, Playrn E. Initial drop ve- locity in a fixed spray plate sprinkler[J]. Journal of Ir- rigation and Drainage Engineering,2013,139(7) :521 - 531.
5Dadhich S M, Singh R P, Mahar P S. Saving time in sprinkler irrigation application through cyclic operation: A theoretical approach [ J ]. Irrigation and Drainage, 2012,61 (5) :631 -635.
7Fraisse C W, Heerman D F, Duke H R. Simulation of variable water application with linear-move irrigation sys- tems[ J ]. Transactions of the ASAE, 1995,38 (5) : 1371 - 1376.
8Dukes M D, Perry C. Uniformity testing of variable-rate center pivot irrigation control systems [ J 1. Precision Ag- riculture, 2006,7 ( 3 ) :205 - 218.
9Kim Y, Evans R G, Iversen W M. Evaluation of closed- loop site-specific irrigation with wireless sensor network [ J ]. Journal of Irrigation and Drainage Engineering, 2009,135 ( 1 ) :25 - 31.
10Armindo R A, Botrel T A, Garzella T C. Flow rate sprinkler development for site-specific irrigation[ J ]. Ir- rigation Science, 2011,29 (3) :233 - 240.
