EFFECT OF THE USE OF VERMICOMPOST AND RHIZOBIAL INOCULATION ON SOME SOIL CHARACTERISTICS, GROWTH AND YIELD OF MUNG BEAN Vigni radiate L.

Alkobaisy & Mutlag

doi:10.36103/ijas.v52i1.1248

Abstract

A field experiment was conducted in silty loam soil to study the effect of vermicompost fertilizer and inoculums Rhizobium legumenosarum on growth and yield of mung bean (Vigni radiate L.), and some soil properties after planting. The experiment consists of nine treatments as follows :T1: control , T2: full recommended mineral fertilizer, T3: vermicompost 8 t.ha-1, T4: vermicompost 16 t.ha-1, T5: vermicompost 8 t.ha-1+ rhizobia, T6: vermicompost16 t.ha-1+ rhizobia, T7: vermicompost 2 t.ha-1+ ½ recommended mineral fertilizer, T8: rhizobia + ½ recommended mineral fertilizer, T9: vermicompost 8 t.ha-1 + rhizobia +½ recommended mineral fertilizer. The experiment was conducted according to RCBD design with three replications. The results were indicated that the use of vermicompost 16 t. ha-1 with the rhizobia inoculation (T6) has improved some soil properties, as this treatment reduced the pH and EC of the soil to 7.18 and 2.20 dsm-1. While CEC and O.M increased to 47.9 Cmole Kg-1 and 2.96%, respectively. Whereas, the treatment T9 was superior in most of the traits, including plant height (70.1 cm), Root weight (5.8 g plant-1) and a number of active and total root nodes (41.3 and 36.6 nodes plant -1). The treatment T9 also gave the best characteristics of the yield components, including the number of pods plant-1, weight of pods plant-1, weight 1000 seeds (g), total yield and was 51.0 pods plant-1, 92.4 g plant -1,49.8 g.plant-1, 1216.95 kg.ha-1 respectively.

Highlights

Vermicompost is used as a biological organic fertilizer in agriculture, it provide the soil with nutrients, growth regulators and enzymes, to increase the productivity of the crop, it improves the physical properties of the soil and creates a safe environmental system for food production, as using it can drop out or reduce the use of chemical fertilizers and pesticides that have a negative impact on public health and environmental pollution, as well as producing good-quality natural crops (9)
Edwards (11), Hossein et al (13), and Parveen et al (25) found that adding vermicompost improved the biological state of the soil by increasing the activity of beneficial bacteria and other beneficial microorganisms in the soil and had an active role in increasing organic matter and the activity of beneficial micro-organisms, and elimination of pathogens, which led to dispensing of chemical control with harmful effects on humans and environmental pollution, this was confirmed by Abdollah et al(1), and Javed and Panwar (15)
It is clear from the table that the addition of vermicompost and rhizobia significantly reduced soil pH compared with the addition of mineral fertilizers only

Summary

Introduction

Vermicompost (compost from earthworm raised on useless waste such as household and farm waste, office, market, etc.) is used as a biological organic fertilizer in agriculture, it provide the soil with nutrients, growth regulators and enzymes, to increase the productivity of the crop, it improves the physical properties of the soil and creates a safe environmental system for food production, as using it can drop out or reduce the use of chemical fertilizers and pesticides that have a negative impact on public health and environmental pollution, as well as producing good-quality natural crops (9).

Results

Conclusion