| dc.description.abstract | An experiment was carried out at the Agroforestry and Environment
Research Farm, Hajee Mohammad Danesh Science and Technology
University (HSTU), Dinajpur, during October 2016 to April 2017 to
evaluate the performance of tomato under kalo koroi, gora neem and
ipil-ipil based agroforestry systems as influenced by different
organic mulching. The experiment was conducted in 9 years old
established woodlot of multipurpose tree species namely Albizia
lebbeck (kalo koroi), Melia azedarach (ghora neem) and Leucaena
leucocephala) (ipil-ipil) and the tree spacing were 3m × 3m. A
popular tomato variety ratan as the test crop. The treatments of the
experiment were factor A: T0 = Tomato sole cropping (Control), T1=
Tomato + Kalo Koroi, T2= Tomato + Gora Neem and T3= Tomato +
Ipil-ipil while the factor B: M0= No mulch, M1= Ash mulch, M2= Saw
dust mulch, and M3= Water hyacinth mulch. All the organic
mulching materials were applied in 15 days after transplanting in
the experimental plots. Seeds were sown on 10th October 2016 in
the seed bed. Twenty one days old seedlings were transplanted in
the main plots on 31st October 2016. The results of the research
were showed that the effect of production systems were significant
in respect of plant height (cm), number of fruits plant-1, fruit weight
plant-1 and fruit yield of tomato, respectively. The highest yield
(57.92 t ha-1) was found in sole cropping of tomato which was
identical to (57.52 t ha-1) found in ipil-ipil + tomato based
agroforestry system and also (54.17 t ha-1) in ghora neem + tomato based agroforestry system and the lowest yield (50.50 t ha-1) was
observed in kalo koroi + tomata based agroforestry system. In case
of organic mulching, the highest yield (63.42 t ha-1) was found in ash
mulch which was identical to (61.25 t ha-1) found in water hyacinth
mulch while the lowest yield (41.33 t ha-1) was observed in control
(without mulch), respectively. The yield of tomato was also
significantly varied due to interaction effect. Significantly the
highest fruit yield (68.00 tha-1) was recorded in ipil-ipil + tomato
under organic ash mulch treatment combination. On the other hand,
the lowest fruit yield (36.67 tha-1) was recorded in kalo koroi + no
mulch treatment combinations. The result revealed that the
production of tomato will be ranked as open field > ipil-ipil > ghora
neem > kalo koroi. Therefore, it should be mentioned that most of
the organic mulch materials suitable for tomato in shade condition
along with open field; but their degree of suitability will be as ash
mulch > water hyacinth mulch > saw dust mulch. From the results
and foregoing discussion, it is clear that open field is so good for the
production of tomato in association of organic mulch but in MPTs
based agroforestry system it could be grown well. Based on the
finding it can be concluded that tomato (var. Ratan) cultivation
under the ipil-ipil tree appears as the best than other trees with
association of ash organic mulching. | en_US |
