Page 75 - BJS vol. 36

Productivity of Soybean-Mungbean Sequential Intercropping ............ Sugarcane 67

Table 7. Effect of soybean - mungbean sequential intercropping on pH, organic
-1
matter (%), total N content (%) and available P (mg kg ) content of post
harvest soil in 2008-2009 and 2009-2010.

Organic Total N Available
pH -1
Treatments matter (%) content (%) P (mg kg )
08-09 09-10 08-09 09-10 08-09 09-10 08-09 09-10
Post harvest soil
T 1 7.6 7.7 1.00 0.98 0.05 0.04 13.20 12.50
T 2 7.6 7.7 1.02 1.02 0.05 0.05 25.10 18.20
T 3 7.6 7.7 1.04 1.05 0.06 0.05 25.50 16.70
T 4 7.5 7.6 1.05 1.07 0.05 0.05 26.00 16.60
T 5 7.6 7.6 1.04 1.00 0.05 0.05 25.00 12.40
S x 0.01 0.04 0.01 0.02 0.01 0.01 0.01 0.69

CV (%) 0.64 1.57 0.79 5.57 1.74 19.83 0.08 12.15
Level of NS NS NS NS NS NS NS NS
significance

In a column, figures with similar letters do not differ significantly at 5% level

Table 8. Effect of soybean-mungbean sequential intercropping on exchangeable K
-1
-1
-1
(cmol kg ), available S (mg kg ) and available Zn (mg kg ) content of
post harvest soil in 2008-2009 and 2009-2010
Exchangeable Available Available
-1
-1
-1
Treatments K (cmol kg ) S (mg kg ) Zn (mg kg )
08-09 09-10 08-09 09-10 2008-09 2009-10
Post harvest soil
T 1 0.16 0.18 21.30 16.30 0.65 0.71
T 2 0.14 0.19 31.20 20.30 0.66 0.62
T 3 0.17 0.22 22.90 17.30 0.61 0.65
T 4 0.16 0.21 25.00 17.30 0.71 0.73
T 5 0.15 0.20 27.30 21.50 0.60 0.64
S x 0.01 0.01 0.04 0.46 0.01 0.04
CV (%) 1.23 12.80 0.40 7.02 0.24 13.85
Level of NS NS ** ** ** **
significance
In a column, figures with similar letters do not differ significantly at 5% level

The overall results suggested that intercropping of soybean with sugarcane does
not have any adverse effect on growth, yield and juice quality of sugarcane rather it is
economically profitable than sole cane. Among the tested three soybean varieties, Sohag
(PB1) showed better performance in different soybean–mungbean combinations for
higher economic return. Thus, this variety can be selected for soybean-mungbean
sequential intercropping in paired rows transplanted sugarcane for sustainable sugarcane
farming and maintaining soil fertility.