UNSOED Conferences, The 3rd International Conference On Sustainable Agriculture For Rural Development (3rd ICSARD)

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THE EFFECT OF NITROGEN SLOW RELEASE COATING FERTILIZER ON SOIL CHEMICAL PROPERTIES AND N UPPORT OF RICE (Oryza sativa L.) ON INCEPTISOL SOIL
Kharisun Kharisun, Ratri Noorhidayah, Muhammad Rif'an, Hana Hanifa, Maulidasari Mussoefa

Last modified: 2023-02-16

Abstract


Nitrogen slow release coating fertilizer is a fertilizer that uses materials with the ability to increase fertilization efficiency and increase cation exchange capacity (CEC) as well as to improve the physical and chemical properties of the soil, namely zeolite and montmorillonite. nano-silicate coating and humic acid will be able to increase the physical, chemical and biological fertility of the soil, especially in marginal (sub-optimal) soils. This study aims to: 1) determine the effect of Nitrogen slow release coating fertilizer on the chemical properties of inceptisol soil. 2) Knowing the effect of Nitrogen slow release coating fertilizer on growth and N uptake by plants. 3) Knowing the interaction between Nitrogen slow release coating fertilizer on soil chemical properties, growth and N uptake by plants. This research was conducted at the Green House of the Faculty of Agriculture, Jenderal Soedirman University, Purwokerto from September 2019 to January 2020. The experimental design used was Completely Randomized Block Design (RAKL) with two-factor treatment. The first factor is the type of Nitrogen slow release coating fertilizer consisting of 6 kinds, and the second factor is humic acid coating and nano zeolite consisting of 2 kinds.The results showed that the Nitrogen slow release coating fertilizer affected the soil pH which tended to be neutral, due to the presence of a mixture of zeolite and activated charcoal in the fertilizer which affected the dominating form of NH4+, thus increasing the total N content by 0.81% and available N by 270.08 ppm, coating affects the chemical properties of the soil, namely Si available at 0.53 ppm. Nitrogen slow release coating fertilizer also affected the plant height by 94.72 cm and the number of tillers as much as 20.33 stems, while the coating did not affect the growth and N uptake by plants. The interaction between Nitrogen slow release coating fertilizer and fertilizer coating on the chemical properties of the soil made an increase for total N of 0.84%, available N of 288, 17 ppm