Feeding Systems with Legumes to Intensify Dairy Farms - cgiar

Table 1. Effect of incorporating Stylosanthes guianensis (stylo) stubble and
of applying different levels of fertilizer on rice yield and number of
tillers and spikelets on the Sara farm in Ucayali, Pucallpa, Peru.
Treatments Rice yield Tillers
(kg/ha) (no./m2) Spikelets
(no./m2) T1 = check (no treatment) 380 c* 102 a 136 b
T2 = after incorporation of stylo 520 b 111 a 154 ab
T3 = incorporation of stylo + 50
kg/ha of N
600 b 119 a 154 ab
T4 = incorporation of stylo + 100
kg/ha of N
830 a 125 a 174 ab
T5 = incorporation of stylo + 150
kg/ha of N
870 a 130 a 187 a
T6 = incorporation of stylo + 200
kg/ha of N
890 a 136 a 185 a
* Values in the same column followed by the same letters do not differ significantly
(P < 0.05), according to Duncan’s test.
Study results indicate that, in the Pucallpa region, S. guianensis has a
high initial capacity for establishment and competition with weeds
(“torourco”). However, once animals are introduced, its persistence tends to
decrease, possibly because of its superficial growth points or because of
reduced soil fertility.
Conclusions
In Pucallpa, Peru, S. guianensis is a well-adapted legume with the
capacity to fix up to 50 kg/ha of N when established as a pioneer crop for
rice and subsequent establishment of improved pastures. Its persistence is,
however, low once the pasture is submitted to grazing.
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