Impact of bio fertilizer and magnetic irrigation water on growth and yield of melon Cucumis melo L.

Abstract

The field experiment was conducted at Baqubah nursery, Directorate of Diyala agriculture in Iraq during summer growing of 2017 to study the effect of bio and chemical fertilizers with magnetized water as well as their interactions on growth and yield of melon cv. Piel de sapo. The experiment was laid-out in Randomized Complete Block Design with factorial experiment with three replications and two factors, included two treatments of fertilizer types (urea 50 kg N. ha−1) with Bio-fertilizer (Azospirillum brasilense and Azotobacter chroococcum) and chemical fertilizer (urea 100 kg N. ha−1) and the second factor included magnetized water and non-magnetized water. The results showed that bio & chemical fertilizer caused significant increases in all studied traits rates compared to chemical fertilizer. Also magnetized water revealed that significant superiority of all study traits rates compared to non-magnetized water. Whereas the interaction between bio and chemical fertilizers with magnetized water led to significant superiority in other treatments with the highest values of all study traits, viz. fruits yield (7.2 kg. plant−1), fruits weight (3.4 kg. replicat−1), total yield (28520.0 kg. ha−1), fruit length (27.6 cm), content of fructose sugar in fruits after 24 days of storage (13.1%), fruit diameter from outside and inside (16.8 and 5.1cm) respectively, content of fibers in fruits after 24 days of storage (6.4%), fruits content of TSS% after 3 days of storage (13.7%) and fruits firmness after 24 days of storage (2.8%).

Citrullus lanatus plant response to irrigation water magnetized in sandy soil

“…When irrigation water is exposed to the magnetic field, it changes its physical, chemical, and electrical properties, which in turn affects its behavior in the plant and the subsequent production characteristics of acidity, conductivity, chemical content, and medicinal activity (Wang et al, 2018;Alavi et al, 2020), therefore modifying the acidity and conductivity of red watermelon juice and increasing its sugar content. This result is consistent with the work of Ali et al (2019), it revealed that the magnetic water treatment excelled in all the studied traits on growth and yield of melon cv. Piel de sapo.…”

Azospirillum sp. and mycorrhizal fungi: key microorganisms in sustainable agriculture

“…In addition to research on the efficiency of Azospirillum in promoting plant growth in different culture conditions, the compatibility of its inoculation with other PGPR microorganisms in various crops is also studied, 11,15,[20][21][22][23][24] the influence of the plant genotype, the substances generated in the inoculated plants and their impact on the microbial communities of the soil. [25][26][27] Garcia de Salamone et al, 21 measured the response of three rice cultivars under field conditions inoculated with a commercial formulation of A. brasilense and Pseudomonas fluorescens and evaluated the influence on soil microbial communities through molecular analysis; and concluded that the combined inoculation with A. brasilense and P. fluorescens increased aerial biomass production and grain yield in the three rice cultivars and did not generate a significant impact on soil microbial communities. There are numerous investigations of bipartite inoculations with Azospirillum and rhizobia on leguminous plants with the aim of studying a strategy to improve the sustainability of agricultural production and even highlight the biotechnological potential of secondary metabolites of rhizobia together with inoculants containing rhizobia and A. brasilense to improve the growth and yield of legume and cereal crops such as maize.…”

Studies on Potential of Magnetic Field Applications for Sustainable Agriculture

“…Irrigation with magnetically treated saline water enhanced plants nutrients N, P, K, Ca, Mg, Fe as compared to normal or untreated saline water [8]. Combination of bio and chemical fertilisers with magnetised water gave highest values of all traits such as fruit yield, fructose content (13.1%), fruit diameter (11.6%), fibre content, fruit firmness (3%) [9]. Germination of seeds increased by 8.34%, average length of root and stem increased by 1 cm and 2.4 cm respectively when compared after 10 days, photosynthetic pigment and protein content showed a significant increase when magnetically treated water was used for irrigation [10].…”