Innovations in Dryland Agriculture

400

Table 2 Maize grain yield of rainfall-harvest cultivation of R-F (ridge-furrow) mulched with
plastic film

Site/Year Growth season

Rainfall

(mm)

Un-mulch

Flat (kg

ha−^1 )

Mulched

R-F(kg

ha−^1 ) References

N Yuzhong/2006 March 29–Oct

5

171 170 1150 Zhou et al.

( 2009 )

N Yuzhong/2007 April 3–Sept

29

259 536 6130

C Yuzhong/2008 Early April 314 5350 8230 Liu et al.

C Yuzhong/2009 to 257 3460 7770 (2014b)

C Yuzhong/2010 Early Oct 291 4030 9120

C Yuzhong/2011 April 27–Oct 8 215 2320 4880

C Yuzhong/2012 April 27–Oct 8 336 3810 8470

Heyang/2007 April 28–Sept

15

398 7674 9402 Li et al. ( 2012 )

Heyang/2008 April 15–Sept

5

330 8844 11,792

Heyang/2009 April 26–Sept

18

379 7136 10,103

Heyang/2010 April

24–-Sept17

390 7524 10,501

Rainfall is within the growing period of maize; N Yuzhong means Northern mountain area of
Yuzhong County; C Yuzhong means Central plain area of Yuzhong County

Fig. 4 Plastic film mulching patterns are in succession for maze production, which lead to yield
increasing significantly. Pattern e is now popular and highest yield

F.-M. Li et al.