Application of the biofertilizer CBFert® in two rice production systems with low fertilizer input
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Abstract
Rice is an essential food in the Cuban diet. Therefore, achieving its production with environmentally friendly products (bioproducts) is a challenge. The objective of the research was to evaluate the effect of the application of the biofertilizer CBFert® in two rice production systems with low fertilizer input. The experiment was established under field conditions in two cropping systems, one by direct seeding and the other by mechanized transplanting following a separate scheme in a Randomized Block Factorial Experimental Design, factor 1: dose (1.44, 2.16 and 2.88 L ha-1) factor 2: frequency of application (7, 14 and 21 days), with a single control. Rice (cv. INCA LP-5) was grown and agricultural yield was evaluated at 14 % grain moisture. Foliar application of CBFert® with 20 % background mineral fertilization showed lower yields than the control fertilized with 100 % fertilization. In both seeding methods, foliar application of CBFert® at 2.88 L ha-1 every 7 days showed higher yields. Based on these results, the application of CBFert® biofertilizer is suggested as a complementary nutritional alternative in rice cultivation, with an application interval of 21 days.
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