Differential effects of pesticides on soil microflora in cultivated soil of Indian rice field agro-ecosystems
Journal Title: Journal of Applied and Natural Science - Year 2011, Vol 3, Issue 2
Abstract
The present study was carried out to evaluate the effect of indiscriminant use of common pesticides especially insecticide on the population of soil micro flora in cultivated soil of Indian rice field agro-ecosystems. Endosulfan and Dichlorvos @ 1ml/l (normal dose) did not show any adverse effect on soil micro flora; but a high dose 2ml/l showed a negative effect. On the other hand Carbofuran @ 9 kg/acre (normal dose) and 12kg/ acre (high dose) showed an adverse effect on the growth of actinomycetes, bacteria and fungi. The important findings of the present study is that the effect on microbes by applying insecticides reflects the ecological imbalance of microbes in cultivated soil and hamper the microbial equilibrium to some extent. The study focused that the uses of the pesticides as a plant protection agent occasionally hamper the growth of soil micro flora in cultivated rice field.
Authors and Affiliations
Kalyanee Bhagabati, Hemen Sarma
Effect of different factors on in vitro growth and shoot proliferation of guava (Psidium guajava L.) cv. Allahabad Safeda
In the present experiment an attempt has been made to optimize the effect of different medium, levels of sucrose, pH, adenine sulphate and light intensity for culture establishment and shoot proliferation in guava using...
Feeding and reproductive behavior of pigeon slender louse, Columbicola columbae (Phthiraptera, Insecta, Ischnocera)
Columbicola columbae, the pigeon slender louse mostly feeds upon the barbules of feathers but in addition to this it also feeds upon skin scurf, epidermal scales, sheaths of growing feathers, pellicle of skin etc. C. col...
Effect of partial replacement of fishmeal with Eichhornia crassipes on growth and survival of Labeo rohita (Hamilton, 1822) juveniles
The objective of the study was to find out the effect of partial replacement of fish meal in the diet of Labeo rohita juveniles. In this experiment, the data pertaining to growth, survival rate, feed conversion ratio, pr...
Growth parameters and yield attributing characters of PR-118 (V1) and PR-116 (V2) varieties of rice (Oryza sativa L.) as influenced by different planting methods
Field experiments were conducted at Punjab Agricultural University, Ludhiana (Punjab) to study the effect of different agronomic aspects of bed planting on growth and yield of rice during Kharif seasons of 2012 and 2013....
Impact of improved farm technology on pulses production in Karnataka
The current study aimed at evaluating technical efficiency and change in output of pulse crops in Karnataka. Totally 180 farmers were selected for eliciting required information on adoption of A3P technology. The results...