Comparative Analysis of Nutritional Sources on the Morpho-Physiological Characteristics of Mung Bean (Vigna radiata)

Abstract

Nutrients deficiency is a major threat against Vigna radiata (mung bean) growth. The effects of nutrients can be mitigated by vermicompost, vermi-tea and chemical fertilizers. With the objective to combat the nutrients deficiency, an experiment was conducted in Riverm Kompost Vermikompost Tarım Hay. Mak. San. ve Ltd. Şti. Suleymanpasa, Tekirdag, Turkey under field conditions. In field four different states of fertilizers [F 0 : Control (No fertilizer application); F vc : Solid vermicompost @ 5 ton/ha; F vt : vermi-tea @ 4%; F c : Chemical fertilizers (N&P) @ 80-60 kg/ha] were applied in mung bean. The plants were harvested 45 days after sowing and the evaluation was done on the basis of various morphological (seed germination, root length, shoot length, root fresh weight, shoot fresh weight, root dry weight, shoot dry weight and number of leaves) and physiological parameters [relative water contents (RWC), chlorophyll contents and membrane stability index (MSI)]. The randomized complete block design (RCBD) with three replicates and least significant difference test were used at 5% probability level. The obtained results indicated that significant impact of natural and synthetic fertilizers on morpho-physiological characters of Vigna radiate were recorded as compared to control but foliar application of 4% vermi-tea treatment showed maximum morphological and physiological performance on Vigna radiate.

Water Content of Plant Tissues: So Simple That Almost Forgotten?

“…The water content was increased in shoots of four organically cultivated herb species ( Dracocephalum moldavica, Melissa officinalis, Nepeta cataria, Thymus vulgaris ) in well-watered conditions under the effect of increasing soil amendment with compost and vermicompost, leading to increases in plant-available mineral nutrients in soil, in parallel to increased accumulation of K + and NO 3 − [ 87 ]. Although the increased water content of plants by vermicompost amendment has also been noted in other studies [ 88 , 89 ], no clear relationship between increased water content of plant tissues and vermicompost amendment rate has been established. It is also possible that the increased water content is an indirect consequence of improved plant water status due to better water holding capacity of soil after vermicompost amendment [ 90 ].…”