Effects of Organic and Inorganic Fertilizers Applications Levels on Greenhouse Tomato (Solanum lycopersicum) Yield and Soil Quality in Khost Province

Abstract

The study was carried out to determine the effect of organic and inorganic fertilizers on tomato yield and soil quality. The study was performed in a randomized complete block design consisting of 7 treatments with 3 replications in the research farm, Shaikh Zayed University, Khost, Afghanistan. The fertilizers treatments were T1, organic fertilizer (5 t/ha); T2, organic fertilizer (10 t/ha); T3, urea (150 Kg/ha); T4, urea (200 Kg/ha); T5, mixed fertilizers (organic fertilizer 3 t/ha + urea (100 Kg/ha); T6, mixed fertilizers (organic fertilizer 6 t/ha + urea (70 Kg/ha) and T7 a control. Results indicate that applications of inorganic fertilizers with a combination of organic fertilizers increased tomato yield and improves the nutrient status of the soil. T5 showed the highest yield of tomato and followed by T4 treatment, which were 33.1 and 31.7 t/ha respectively. The lower yield were obtained in T7 and T1 treatments. The highest plant heights (205.0 and 199.0 cm) were obtained in T5 and T4 respectively, while the lowest plant heights were obtained in T1 treatment and followed by T7 treatment. Similarly, we found that a combination of both inorganic and organic fertilizers application also is the best strategy to improve soil nutrients, maintain soil fertility. Soil P2O5 and K2O, where the highest amounts were obtained in T5 and followed by T6, which were 26.5, 22.5 and 44.5 and 41.5 mg/L respectively. The control treatment had the lowest amount of P2O5 and K2O. Therefore, this study suggests that an appropriate amount of organic fertilizer with inorganic fertilizer not only increased tomato yield but also improve soil fertility.

Influence of Varieties and Nutrient Levels on Growth, Yield and Profitability of Palak (Beta vulgaris var. Bengalensis)

“…The more availability of nutrients under higher levels might have encouraged the photosynthesis, accumulation of food material and higher plant growth resulting in more plant height. These results are in accordance with the findings of Ali et al [10], Singh et al [11] and Hashimi et al [12].…”

Growth and Performance of Baby Spinach grown under different Organic Fertilizer

“…The global increase in population, coupled with concerns about the indiscriminate use of agrochemicals, has highlighted the significance of organic farming [13]. Organic fertilizers, such as farmyard manure (FYM), goat manure, poultry manure, and biofertilizers, have gained attention as substitutes for chemical or inorganic fertilizers in cultivating baby spinach [14]. Reports suggest that organic fertilizers offer several benefits, including improved soil aggregation and physical properties like water retention and aeration.…”

Enhancing Spinach (Spinacia Oleracea L.) Seed Germination, Leaf Biomass Production Under Saline Water Stress: The Implications of Zinc and Cow Manure

“…On the other hand, when more leaf litter was added together with a manure amendment, the amounts of N, Zn, Fe, Cu, and Cd in spinach decreased. (Hashimi et al, 2019) indicated that cow manure application without applied N showed adverse impact on spinach yields. (Kaho et al, 2020) results showed that the height of the plants, number of leaves, the fresh weight, and the dry weight of spinach (Amaranthus spp.)…”