Broccoli Seedling Production in Response to Recognised Organic Inputs

Abstract

This study evaluated the production of seedlings broccoli (Brassica oleracea var. Italica) with organic inputs. The inputs were as follows; a) growth medium, consisting of Sphagnum peat (Pro Moss TBK®) mixed with poultry manure compost (Vertia® brand) in a) 90:10 and 80:20 ratios; b) biofungicide Trichoderma harzianum Rifai (Natucontrol® brand) at doses of 1.5 and 3 g/L water per 338-cavity polystyrene tray; and c) complementary nutrition applied in irrigation with poultry manure tea at doses of 0.5 and 1 dS/m per tray every two days. Control set was a ‘typical management’ control based on peat (100%) as a growing medium with the application of conventional fertiliser (1 g/L of Tricel® 20 every two days) and conventional fungicide Mancozeb as a damping-off preventative (1 g/L per tray). The seedling growth, relative chlorophyll content, photosystem II quantum yield, and morphological indicators showed that the eight treatments with recognised organic inputs performed significantly better than the control (p<0.05). The use of peat substrate mixed with poultry manure (80:20 ratio) with inoculation of T. harzianum at a dose of 1.5–3 g/L and with application of poultry manure tea at a dose of 1 dS/m yielded the best results. We determined that it is possible to obtain quality broccoli seedlings with the inputs recognised for certified organic agriculture. © 2021 Friends Science Publishers

Effect of Peat-Perlite Substrate Compaction in Hiko V265 Trays on the Growth of Fagus sylvatica L. Seedlings

“…Increased SH at the cost of root system size is unfavorable in the aspect of production quality. A more extensive root system is typical of a more durable seedling, which will be characterized by a greater growth potential and thus greater survival after planting on the culture [23,42,57,58], which is in turn associated with a lower number of refillings after the loss of seedlings [54]. The highest total root length was observed in seedlings from uncompacted and medium compaction (0.10-0.11 g•cm −3 ) variants.…”

EFECTO DEL USO DE VERMICOMPOST, ACOLCHADO ORGÁNICO Y COBERTURA PLÁSTICA SOBRE ALGUNAS PROPIEDADES DEL SUELO Y EL CULTIVO DE BRÓCOLI (Brassica oleracea L.), EN PERÚ

“…Estas brechas requieren incorporar estrategias de manejo que permitan alcanzar mayores rendimientos de manera sostenible y rentable para los productores agrícolas. Entre las alternativas estudiadas resalta la adición de diferentes abonos orgánicos como compost, bocashi, microorganismos eficaces, coberturas verdes, vermicompost, entre otras (Bhattarai et al, 2022;Rodríguez-Ortiz et al, 2021;Peralta-Antonio et al, 2019;Damian et al, 2018), alcanzado mejores rendimientos comparado a los manejados solo con fertilizantes sintéticos, debido principalmente a que favorecen las propiedades físicas, químicas y biológicas del suelo.…”