A bell pepper crop is considered important and significant for the Brazilian sector, favoring from the small to the largest producer of this vegetable. It is cultivated throughout the Brazilian federation, mainly in the state of São Paulo and Minas Gerais. Studies have indicated that water content in sandy soils is one of the main constraints for increasing agricultural production, monitoring product indicators to define and indicate alternatives without greater use of water by the pepper crop they exploit. In this work, we define the following hypothesis: irrigated green pepper crop with lower incidence of lesions associated with higher weight of forage palm incorporated in the soil, with behavior suspicious to the treatment that did not incorporate forage palm in the soil with 100% water capacity pot From the defined hypothesis, what the main objective of the present proposal will be evaluated and the morphophysiological characteristics of the pepper crop under water regimes and forage palm weights incorporated in a sandy soil in tropical climate. This test will be implemented in the Plasticization Sector of the Department of Rural Engineering of FCAV, UNESP, Jaboticabal Campus. In the experimental area will be cultivated a green pepper crop. Irrigation management will be used through pot saturation and subsequent drainage, thus defining a "pot capacity", which corresponds to the maximum amount of water that can be retained in the soil volume considered. The watering shift to be adopted will be 1 day. The experimental design will be randomized blocks in factorial 4 x 4, consisting of four water regimes: RH1 = 100%; RH2 = 85%, RH3 = 70% and RH4 = 55% of vessel capacity; and four forage palm weights cut and incorporated into the soil: PF1 = 0; PF 2 = 50; PF3 = 75 and PF4 = 100 g dm-3 of soil, totaling 16 treatments with 4 repetitions. To evaluate the response of the crop to the procedures will be analyzed as follows: plant height, fruit length, and number of fruits; stem diameter, classification, fruit classification, total chlorophyll, canopy temperature, water potential, water use efficiency and relative leaf water content. Data will be analyzed using Agroestat Version 1.0 software and interpreted using the significance of variance and regression analysis, considering the probability level of up to 5% by the F test.
News published in Agência FAPESP Newsletter about the scholarship: