Figure 1.
Aboveground biomass and N, P and K acquisition of intercropping and weighted means of monocropped crops in 2011 and 2012.
Different capital letters indicate significant differences at P<0.05 by LSD among different P application rates; different lowercase letters with the same P application rates indicate significant differences at P<0.05 by LSD among different cropping systems; F+M, S+M, C+M and T+M indicate intercropping of maize with faba bean, maize and soybean, and chickpea and turnip, respectively; M and I indicate monoculture and intercropping, respectively. The error bars are standard deviation with 3 replicates.
Table 1.
Grain yield (Mg ha−1) as affected by main effects of P application and subplot effects of cropping system in 2011 and 2012.
Table 2.
Soil OM (g kg−1) content as affected by main effects of P application and subplot effects of cropping system in 2011 and 2012.
Table 3.
Soil Olsen P (mg kg−1) as affected by main effects of P application and subplot effects of cropping system in 2011 and 2012.
Table 4.
Soil exchangeable K (mg kg−1) as affected by main effects of P application and subplot effects of cropping system in 2011 and 2012.
Table 5.
Soil CEC (cmol kg−1) as affected by main effects of P application and subplot effects of cropping system in 2011 and 2012.
Table 6.
Urease activity as affected by main effects of P application and subplot effects of cropping system in 2011 and 2012.
Table 7.
Acid phosphatase activity as affected by main effects of P application and subplot effects of cropping system in 2011 and 2012.