This process is as important as it makes nitrogen available to plants helping their growth and thus supports animal and human life. Nitrogen is essential for survival as it a required nutrient to produce amino acids, which are the foundation of proteins and nucleic acids. Azotobacter can improve seed germination and therefore can also control plant diseases due to the bacterium being able to produce Thiomin, Riboflavin, Nicotin, indol acitic acid and giberalin Biotechnology In relation to azotobacter’s role in nitrogen fixation it has been used in studies to benefit agriculture. Nitrogen fixation is used in relation to the rotation of crops and fertilization. Azotobacter is useful in gauging the health of the farming soil.
The final stage is for the roots to absorb all the cations that have been released from the bonding of the hydrogen ions and the negatively charged soil2 . These are the stages required for the plants to get nutrients from the soil by the cation exchange. The next cycle that can be very valuable in plants being able to get nutrients within their soil is the nitrogen cycle. The nitrogen cycle is when nitrogen from the atmosphere or from decomposed organic material can be converted into nutrients by nitrogen-fixing bacteria1 . This process can be very successful for both the plants and the bacteria because they both end up giving each other something in return.
This pathogen can tolerate a low oxygen conditions and it can survive in low levels of nutrients and temperatures. It contaminate the medical equipments(Lyczak et al., 2006).P. aeruginosa causes various diseases like pneumonias, urinary tract infection and other respiratory insufficiency infections because it takes advantage of an individual that weakened immune system to create an infection. It has adaptability and high intrinsic antibiotic resistance
• Cultivating horticulture plants like sevanthi, marigold, isabgol and guar gum help in improving soil quality. • Fruit plants and trees like Orange, Jack Fruit, Jujube Fruit, Guava and Pomegranate should be cultivated because it gives long term productivity and regular crops can cultivated between their rows. • Some new crops which absorb heavy metals and reduce heavy metal concentration in soil may be cultivated. • Continuous monitoring of industrial effluent must be done to avoid excessive accumulation of heavy
This study focusses on green beans (or snap beans, Phaseolus vulgaris) and peas (Pisum sativum) harvested for their fresh pods intended for export. Both are member of the legume family. In what follows a concise overview is provided on their origin, phylogeny, physiology, ecological requirements and cultivation. Illustrations and tabulated summaries of the characteristics of these crops are present in ANNEX Nmbr. First an outline is given on the legume family and biological nitrogen fixation.
Their effects on plant nutrition have received the most attention. In fact, enhanced phosphorus (P) uptake by plants under low P fertility hasbeen the most documented effect of AM fungi. AM fungi can make P more available, and P is considered to be one of the most limiting essential plant nutrients in the soil. The distribution of AM fungi in time and space and their effectiveness in promoting plant growth vary under the influence of a myriad of factors. These include genetic makeup of the host plants and of the associated AM fungi, abiotic and biotic factors such as climate, season, vegetation, chemical and physical soil properties, soil
The Importance of 1-Aminocyclopropane-1-Carboxylate-Deaminase-Producing Bacteria and their prospective uses against Biotic and Abiotic Stresses in Peat Soil Agriculture Corresponding Authors: Sobia Saleem , Maria Iqbal E.mail: Sobiasaleem66@gmail.com Abstract Plant growth promoting rhizobacteria (PGPRs) are known as beneficial bacteria for plant growth and yield. One PGPRs group are the ACC-deaminase positive bacteria which degrade the 1-aminocyclopropane-1-carboxylic acid (ACC). The 1-aminocyclopropane-1-carboxylate is an enzyme produced by some soil bacteria to reduce ethylene biosynthesis in higher plants by degrading the ACC. ACC(1-aminocyclopropane-1-corboxylic acid) is the immediate precursor of ethylene in higher plants. Increased
Cadmium resistant Pseudomonas sp. G1 worked as plant growth promoting bacterium that has stimulatory effects on root length of mustard seedling under cadmium stress than control. This strain has multiple plant growth properties in normal as well as cadmium contaminated environment. This strain also has co-resistance property with high MAR (multiple antibiotic resistant) value. This strain was isolated from soil of industrial area to assess its plant growth promotion and cadmium uptake in Brassica juncea.
Potato farming on such slopes is made possible by ridging the crop to encourage tuber development as rain water tends to collect in the furrows then percolates into the soils thereby becoming available to the adjacent potato crop. Farmers are focusing on various farming practices like hilling up of potatoes immediately after sowing with subsequent hand weeding so as to conserve soil and water (Ngigi et al., 2006). More so, others intercrop it with other cover crops as a way of ensuring optimum water use efficiency (Youssef et al., 2007). The term water use efficiency according to Loomis (1983), is defined as the ratio of dry matter produced (Y) per unit of water transpired by a crop (T), expressed as kg/mm or kg/ha/mm. The proposed research will assess effect of selected potato-legume cropping systems on soil moisture conservation and its effect on nutrient uptake and use efficiency.
In addition, potato is regarded a high-potential food security crop because of its ability to provide a high yield of high-quality product per unit of input with a shorter crop cycle than major cereal crops like maize (Hirpa et al., 2010). Currently, many improved varieties of potato are disseminated by research centers, cooperatives and private suppliers to smallholders and this has contributed to the improvement and expansion of potato production in Ethiopia. However, little has been done to improve the performance of the entire potato value chain in the country and there is no clear evidence on which model works better for the overall performance of potato value chain in Ethiopia. This case study, therefore, investigates subsidized cooperative potato value chain model in Sinan and unsubsidized private investor [SolaGrow PLC] promoted potato value chain model in Debre Ziet so as to come up with valid conclusion on what model works better for inclusive value chain in the