Uso da torta de filtro e do molibdato de potássio em cana-de-açucar

Abstract

Through the advancement of plantations of cane sugar alcohol sector, mainly to identify the factors that best define the competitiveness of the chain. With the growth of the production of sugar cane, Brazil needs to technologies that do not grow in their cultivation area, but in the vertical growth. The present study aimed to seek knowledge about the use of filter cake and potassium molybdate on morphological variables, technological and productivity. With the management practices adopted in the soil, the filter cake is an excellent organic product for the remediation of soil and moisture retention. Although there is no direct evidence that molybdenum is absorbed metabolically, the filter cake contributes to the release of this micronutrient plant causing the nitrate reductase (NO3-) to nitrite (NO2-) and NH4 +. The experiment was conducted under field conditions in conventional tillage in a soil classified as Ultisol (PVA), geographically located at latitude 6 ° 51'32 .64 "S, longitude 35 ° 7 '42.02" W and altitude from 50 to 100 m, located in Monte Alegre Farm II, lot of 81 246 Monte Alegre mill in the town of Mamanguape, PB.O experimental design was a randomized block design (RBD) in a factorial 2 x 2 x 4 x 4 + 4 with four replications, where treatments of 2 found tratamentoscom filter cake fresh, and TFI01 TFI02 (10 and 20 t ha-1) and 2 treatments with composted filter cake (TFC), and TFC03 TFC04 (10 and 20 t ha -1) with 4 doses of potassium molybdate, where the recommended dose to be applied (0, 250, 500, 750 ml ha-1) in litros/ha-1 the groove 100, and four additional treatment (0, 250 , 500, 750 ml ha-1) corresponding to doses of molybdenum mineral fertilizer Plant Monte Alegre-PB, for a total of 68 plots. With the application of the filter cake (fresh and composted) and potassium molybdate (Potamol), promoted an increase in plant height. The application of potassium molybdate (Potamol) along with the filter cake promoted further growth in the stem, reflecting the increased productivity of cane sugar.