Abstract
ABSTRACT Strawberry is produced and appreciated in different regions of the world, due to its productive and commercial characteristics. Biofertilizer is an organic fertilizer that is easy to prepare and effective to nourish plants. The objective of this work was to assess the effect of different irrigation levels and anaerobically fermented bovine biofertilizer doses, on biomass accumulation and strawberry crop yield. The experiment was carried out in the experimental area of the UFC, in Fortaleza, Ceara, Brazil, from August to December 2012, under a screened environment. The experimental design was randomized blocks designed into subdivided plots, in which irrigation levels were applied via drip irrigation (equivalent to 33.3, 66.6, 100, 133.3 and 166.6% of the evaporation measured in the Class A tank - ECA), corresponding to the plots. The four doses of bovine biofertilizer (125, 250, 375 and 500 mL plant-1 week-1) were the subplots, with four replications. The assessed parameters were: biomass (root, shoot and total dry matter), fruit diameter, fruit length, number of fruits per plant, average fruit mass and yield. The biofertilizer and irrigation increased strawberry shoot biomass and total biomass. The interaction between irrigation and bovine biofertilizer raised the root matter to 3.7 g. The biofertilizer was nutritionally efficient for the strawberry regarding number of fruit, fruit diameter and yield. Irrigation increased strawberry length and average mass.
Highlights
Strawberry is a herbaceous plant that belongs to the family Rosaceae and the genus Fragaria
The objective of this work was to assess the effects of different irrigation levels and anaerobically fermented bovine biofertilizer doses, on the accumulation of biomass and yield of strawberry crops
The experimental design was randomized blocks with subdivided plots, and the plots consisted of five irrigation levels (33.33, 66.66, 100, 133.33 and 166.66% of the evaporation measured in the Class “A” tank) and subplots by four doses of biofertilizer (125, 250, 375 and 500 mL per week-1 plant-1), with four replications
Summary
Strawberry is a herbaceous plant that belongs to the family Rosaceae and the genus Fragaria It is cultivated in cold regions and in tropical and subtropical climates. Agricultural production generates different residues, which are mostly organic and can be reused as organic fertilizer They are an important alternative to mineral fertilizers that come from scarce and expensive sources. Among these fertilizers are liquid biofertilizers, which are produced from the fermentation of organic matter with water, with or without air. The objective of this work was to assess the effects of different irrigation levels and anaerobically fermented bovine biofertilizer doses, on the accumulation of biomass and yield of strawberry crops
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