Effect of seaweed, moringa leaf extract and biofertilizer on growth, yield and fruit quality of cucumber (Cucumis sativus L.) under greenhouse condition

TL;DR

This study evaluates how seaweed, moringa leaf extract, and biofertilizer, alone and combined, affect cucumber growth, yield, and quality under greenhouse conditions, comparing results with chemical fertilizers.

Contribution

It investigates the effects of biostimulants and their combinations on cucumber performance, highlighting their potential as alternatives or supplements to chemical fertilizers.

Findings

Biostimulants improved root growth characteristics.

Chemical fertilizers yielded the highest root development.

Triple biostimulant combination was comparable to chemical fertilizers.

Abstract

This factorial experiment was conducted in a greenhouse during the period of May 3, 2021 to August 5, 2021 at the research farm belongs to the Horticulture Department, College of Agricultural Engineering Sciences, University of Sulaimani, Sulaimani, Iraq. The experiment was designed to study the effect of some biostimulants, individually and their combinations, on cucumber plants performance under greenhouse conditions; in addition to compare the results with of chemical fertilizers application. The treatments consisted of control (without adding any kinds of biostimulants) recommended dose of 100% chemical fertilizers (RDCF), seaweed extracts (SE), moringa leaf extract (MLE), bacterial-based biostimulant of Fulzym-plus (FP), that contains Bacillus subtilis and Pseudomonas putida, (SE+MLE), (SE+FP), (MLE+FP), and (SE+MLE+FP). The experiment was laid out in simple RCBD with 3 replications. The results showed that the application of different biostimulants, individually and their combinations, significantly improved the root growth characteristics. However, the highest values of lateral roots number per plant, lateral root length, lateral root diameter and root system dry weight were recorded by the application of recommended dose of chemical fertilizer (RDCF). While, this treatment was not different substantially with the triple combination of the tested biostimulants (SE+FP+MLE) in all studied root characteristics. In addition, untreated plants registered the minimum value of all the mentioned characters.