GONDIM, S. C.; http://lattes.cnpq.br/0278419429717434; GONDIM, Saulo Cabral.
Resumen:
The stud carried out in the municipality of Remigio, PB, from epoch November 2008 to
June 2009 with the objective evaluate the performance of vegetative and productive yellow
passion fruit under different doses of potassium, inputs from common natural biofertilizer
and vinasse, and irrigation with saline water and not saline. The Treatments were arranged
in randomized blocks in plots with three replications and three plants per experimental unit
in floor area of 1,620 m . The main plot was represented by the water levels (0.5 and 4.5
dS m"1) and combination factor inputs (Biofertilizer common and vinasse) and five doses
potassium derived from natural inputs (0.0, 7.5, 15.0, 22.5 and 30 mg L"1), corresponding
subplots. For the soil respiration was considered the same scheme split plot described
above, using three doses of potassium (0.0, 15.0 and 30 mg L"') derived from the fertilizer
and vinasse, corresponding subplots, plus the dry season (November / 2008) and rainy
(June 2009) and periods (daytime and nighttime) as sub-sub-subplots. The macro and
mesofauna were performed on the same plots as described for soil respiration, the addition
of dry and wet seasons. The Potassium was supplied from natural materials biofertilizer
common and vinasse, every 90 days after planting. The results were analyzed variance and
means compared by the test "F". The potassium levels were evaluated using regression
polynomial. In the evaluation of macro and mesofauna of the soil were analyzed with
descriptive and were done comparisons of communities in times tested (dry and wet), using
the Shannon index and the index of Pielou. The vinasse promoted higher levels of
potassium to the soil the biofertilizer; the addition of biofertilizer vinasse and resulted in
higher levels of micronutrients in the soil in treatments with supremacy with saline water,
the application of vinasse favored increase in population of soil organisms (meso and
macrofauna), higher doses of potassium fostered a greater microbial activity in the period
night, the predominant groups in the study area were Hymenoptera (ants) and Acarina
(mites), the low value the Shannon index with consequent reduction in uniformity
represented by the Pielou index showed the predominance of the group in the
Hymenoptera macrofauna and mesofauna in group Acarina; treatments irrigated with
saline and no trial period, favored a greater stem diameter of passion yellow, the increase
in water salinity caused greater number of fruits per plant, but inhibited the average mass
of fruit, with both inputs, increasing doses of potassium, independent inputs and salinity
water had no effect on yield per plant, except in potassium, calcium, boron, copper and
iron, in the early flowering, the yellow passion fruit seedlings were adequately supplied in
the macro and micro nutrients: N, P, Mg, S, Zn and Mn, the physical characteristics of
fruits were not were influenced by water quality, the type of input or by the potassium,
however, the acidity the fruit increased with the use of biofertilizers, while vinasse
improved the quality of the fruit.
