Abstract
This study was aimed at evaluating the different concentrations of nitrogen for tomato seedling production (Lycopersicon esculentum Mill.), hybrid Loreto. Five concentrations of nitrogen were analyzed: 0, 4, 8, 12 and 16 mEq / L, using as a basis the Steiner nutrient solution. A pilot randomized block design was used with six replications and five treatments. Thirty-five days after sowing, the following variables were analyzed: seedling height, stem diameter, fresh stem weight, fresh leaf weight, leaf area, dry steam weight, dry leaf weight, dry root weight and total nitrogen content. An ANOVA analysis (p <0.05) with post-hoc Tukey test was performed to compare each treatment variables. The results showed that the increase in the concentration of nitrogen has a positive effect on organ growth. The treatment with the highest values in the morphological variables was 16 mEq / L, which shortened the production time of seedlings ready for transplant.
Highlights
Agriculture currently focuses on the intensive, rational use of all the available resources —soil, seeds, water— and the efficient management of production and logistics to guarantee producers will obtain the best performance at the lowest possible cost
The results showed that seedling growth benefitted from the application of biosolids, since a clear increase was observed in the magnitudes of all the variables analyzed, with similar results obtained with treatments involving a mineral fertilizer
Nitrogen influences the organs of tomato seedlings
Summary
Agriculture currently focuses on the intensive, rational use of all the available resources —soil, seeds, water— and the efficient management of production and logistics to guarantee producers will obtain the best performance at the lowest possible cost. The current trend is to produce seedlings in greenhouses for their subsequent transplantation. Seedling production is the first and most sensitive stage in the production of vegetable species. It is crucial to obtain the best seedlings that, when transplanted, can grow and perform optimally. Seedling growth and nutritional status are directly related to the earliness, yield, size and number of fruits [1,2,3,4]. For greenhouse production of seedlings with the desired characteristics, the use of nutrient solutions, the right mix of organic matter in the soil is highly recommended [5]
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