Effect of organic products on productivity, stability and feeding value of Pisum sativum L.
Natalia Georgieva
, Ivanina Vasileva
Abstract: In the near future, organic products such as fertilizers and nanoproducts are anticipated to play a pivotal role in modern agriculture, contributing to the development of ecologically and sustainably oriented farming practices. The objective of this study is to investigate the individual and combined use of organic products: Litovit and Nagro (foliar nanofertilizers) and Madex and Agrikol (bioinsecticides), on the productivity, stability, and nutritional value of field peas. The experimental controls are untreated control, and standard grown peas using synthetic products (foliar fertilizer Crystalon and insecticide Proteus110OD).
Results indicate treatment with organic nanofertilizers Litovit and Nagro, either individually or in combination with bioinsecticides Madex and Agrikol, invoke a positive effect on the dry biomass productivity of field peas, resulting in yield increase ranging from 9.7% to 35.6% compared to the untreated control. When applied individually, Litovit achieves higher yield compared to the synthetic fertilizer Crystalon, while Nagro shows statistically inconclusive results. The combination Litovit + Madex demonstrates the highest and proven productivity (5407.72 kg/ha) compared to the synthetic combination (Crystalon + ProteusOD110). The synergistic effects of subadditive nature are most pronounced in combinations involving Litovit. Among the organic variants, the combination Nagro + Agrikol exhibits high stability based on a comprehensive evaluation using the methods of Eberhart, Russel, Tai, and Kang. All organic products lead to incread protein and decreased fiber content in the biomass. The forage plants with the highest dry matter digestibility were obtained after treatment with Nagro (73.25%), Litovit + Agrikol (73.05%), and Litovit (72.01%).
Keywords: dry mass productivity; feeding value; organic products; Pisum staivum; stability
Citation: Georgieva, N. & Vasileva, I. (2025). Effect of organic products on productivity, stability and feeding value of Pisum sativum L. Bulg. J. Agric. Sci.,31(3), 522–530.
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| Date published: 2025-06-24
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