The use of leaf mulch as a soil cover is effective in improving yield and soil
fertility. The field experiment was conducted during 2010 and 2011 to study the
effect of plant spacing (30 cm × 30 cm and 45 cm × 30 cm) and four mulches {pine
needles (Pinus roxburghii), poplar leaf (Populus deltoides), silver oak (Grevillea
robusta) tree leaf mulch and unmulched control} on growth, yield, qual...