CULTIVO DE SOJA NO CENTRO-OESTE DO BRASIL COM FERTILIZANTE ORGÂNICO EM CONJUNTO COM REMINERALIZADOR MICAXISTO

• DOI: 10.22533/at.ed.9752116065

• Palavras-chave: Fertilizantes agroecológicos. Condicionador de solo. Produtividade. Agricultura sustentável. Rocha metamórficas.

• Keywords: Agroecological fertilizers. Soil conditioner. Productivity. Sustainable Agriculture. Metamorphic rock.

• Abstract:

  This work aimed to use organic fertilizer in conjunction with mica shale remineralizer in soybean culture, to cultivate Agroeste AS 3730, implanted in the Brazilian Midwest. The experiment was conducted in the harvest of the agricultural years of 2019/2020, at Fazenda Panamá, municipality of Itumbiara, State of Goiás, in a conventional cultivation system, implemented by the Center for Study and Research in Phytotechnics, The location presents as geographical coordinates, 17 ° 58 'S latitude and 45 ° 22' W longitude and 540 m altitude. The agronomic parameters “plant biometrics” were evaluated as follows: The population was carried out 30 days after germination, studies of plant biometrics (aerial part) were carried out at harvest, that is, number of branches, number of seed pods one grain, number of pods of two grains, number of pods of three grains, number of pods per plant, weight of a thousand grains and productivity in kilograms per hectare. To evaluate productivity, plants were collected in the useful area of ​​each parcel and manually threshed with the weighing of the grains in each parcel, and for the weight of a thousand grains, a tray was used to count the thousand grains and weighed on a scale. precision. The experimental design was in randomized blocks and a single factor, and the doses of mica schist, with 7 T1 levels: 0.0 Kg ha-1 absolute control; T2: 4,000 Kg ha-1 micaxisto + 1,000 Kg ha-1 organic fertilizer; T3: 8,000 Kg ha-1 micaxisto + 1,000 Kg ha-1 organic fertilizer; T4: 12,000 Kg ha-1 micaxisto + 1,000 Kg ha-1 organic fertilizer; T5: 16,000 Kg ha-1 micaxisto + 1,000 Kg ha-1 organic fertilizer; T6: 20,000 Kg ha-1 micaxisto + 1,000 Kg ha-1 organic fertilizer; T7: 24,000 Kg ha-1 micaxisto + 1,000 Kg ha-1 organic fertilizer, with four replications. The data were analyzed using the SISVAR program. The data obtained were subjected to analysis of variance, the means being compared by the Tukey test, when significance was detected for ANOVA at p = 0.05 of probability for the comparison of means. The use of the “remineralizing” mica schist in the soy culture was considered efficient to the proposed objective, as it obtained a difference of 864 kilograms, that is, 14.4 bags of 60 kilograms, between the best treatment in comparison with the absolute control “zero dose” not being detected by the averages test, but highly perceptible to the farmer's pocket.

• Número de páginas: 14