Rhizosphere soils of groundnut

Phosphorus plays a major role in growth and development of crops and is often found limiting in almost all types of soils. Phosphorus (P) solubilizing bacteria do the vital processes of mobilization of P from its poorly available sources. In this study, the potency of five bacterial strains (2 strains of Bacillus and 3 strains of Burkholderia) have been evaluated to solubilize P from complexes of Ca-P, Al-P, Fe(II)-P and Fe(III)-P.

21p trinhthamhodang6 09-07-2020 8 3   Download

This study was conducted to isolate sulphur oxidising bacteria from saline soils of groundnut growing places in Andhra Pradesh, India and they were characterized based upon their morphological and biochemical characteristics. Among 10 isolates five were capable of reducing the pH of the growth media below 5.0 from initial pH 8.0 and made the highest sulphate production in the growth media and sulphate production of isolates ranges from 1.264 mM to 0.390 mM.

6p cothumenhmong5 17-05-2020 9 1   Download

Soil microorganisms such as bacteria and fungi play an important role in soil fertility and promoting the plant growth. Sixty soil samples are collected of different agricultural crop fields such as groundnut field, sugarcane field, Plantain field, turmeric field, tapioca field and wasteland with Parthenium field in and around Thiruvannamalai, Tamil Nadu were investigated soil moisture content by oven drying method and diversity of fungi by using serial dilution plating method with standard Potato Dextrose Agar (PDA) for qualitative and quantitative pattern.

15p trinhthamhodang5 16-05-2020 12 1   Download

A field experiment was conducted at Agricultural College Farm, Bapatla, Andhra Pradesh on sandy upland soils during post-monsoon, 2018. The experiment consisted of four levels of nitrogen and four population densities laid out in randomized block design with factorial concept. Nutrient content significantly increased with increase in nitrogen levels and higher content of N, P, K, Zn and Fe were obtained with 90 kg N ha-1 which was significantly on par with 60 kg N ha-1 .

7p trinhthamhodang1212 06-04-2020 10 0   Download

Trichoderma is one of the common fungal biocontrol agents being used worldwide for efficient management of various foliar and soil borne plant pathogens. Unlike chemicals, the establishment of these biocontrol agents in the targeted niche requires support even after their application. Two Trichoderma species (Isolate 2 and Isolate 5) were isolated from paddy and groundnut rhizospheres respectively.

11p caygaocaolon3 09-03-2020 24 0   Download

Use of biocontrol agents against soil borne pathogen is gaining importance in the present situation for eco-friendly management of soil borne diseases. Bioefficacy of indigenous Trichoderma spp has greater efficacy against soil borne pathogens of pulses. Native Trichoderma isolates were collected from soil rhizospheres of paddy, groundnut, brinjal and tomato grown in the Agronomy field and Central farm of Orissa University of Agriculture and Technology, Bhubaneswar and named as Isolate 1, Isolate 2, Isolate 3, Isolate 4, Isolate 5 respectively.

7p caygaocaolon3 09-03-2020 10 1   Download