Role of mycorrhizas in the mineral nutrition of host plants Mycorrhizas are very important in the uptake of nutrients such as P‚ N‚ K‚ Cu‚ Zn and Ca by plants especially in soils low in these nutrients. Since P is the most limiting nutrient in tropical soils‚ mycorrhizas are vital for improving P nutrition particularly for cultivated plants. External hyphae can absorb and translocate P to the host from soil outside the root depletion zone. The thin mycorrhizal hyphae (2-4 μm in diameter) are able
Premium Plant Fungus Soil
Alkaline soil is referred to by some gardeners as”sweet soil”. The pH level of alkaline soil is above 7‚ and it usually contains a great deal of sodium‚calcium and magnesium. (1) Alkaline soil occurs in areas with high limestone content‚ easy souble phosphorus and calcium binding‚ formation of insouble calcium salts of phosphorus‚ reducing the effectiveness of phosphorus. Also‚ in calcareous soils‚ boron‚ manganese‚ molydenum‚ zinc‚ iron greatly reduces the effectiveness of the crop often feel inadequate
Premium PH Acid Soil
INTRODUCTION Major of us was seemingly misinformed or not knowledgeable enough about this certain topic‚ The Nuclear Energy and its capabilities. Nuclear energy is a clean‚ safe‚ reliable‚ independent and competitive energy source. Moreover ‘this’ energy can be of great help with reducing and preventing air pollution that can lead and contribute to the greenhouse effect by replacing a significant part of the fossil fuels. Also‚ besides from the fact that it can be the source of our electricity‚
Premium Nuclear power Nuclear power Agriculture
Purpose: The purpose of this lab was to gain a complete understanding around the rate of cellular respiration within multicellular organisms‚ also to research and understand how to use a CO2. Background: Living systems require free energy and matter to maintain order‚ to reproduce‚ and grow. Energy deficiencies cause disruptions at the population and ecosystem levels as well. 1 mol of H2O produces 1 mol of CO2 through cellular respiration. Autotrophic organisms capture free energy from the environment
Premium Carbon dioxide Oxygen Cellular respiration
011. The effect of sound on plants [Exp] 021. Plants in different environments (light intensity‚ color) [Exp] 031. The effect of nicotine‚ air‚ yeast on mold growth [Exp] 041. Factors affecting the strength of hair [Exp] 042. Factors affecting the growth of bacteria [Exp] 043. Factors affecting the growth of molds or yeast [Exp] 051. Experiment with Hydroponics (Use seedlings started from seed with three types of soil and different rates of fertilizer) [Exp] 071. The effectiveness of Antiseptics
Premium Light Incandescent light bulb Affect
Exercise 1: Correct Use of the Scientific Method and an Experiment with Macromolecules I. Objectives In this lab‚ students will: a.) Learn how to utilize the Scientific Method to develop a testable hypothesis b.) Generate an effective experimental design from a hypothesis c.) Understand the chemical differences between different macromolecules and how these differences can be used to design tests for each molecule. d.) Identify macromolecules in solutions using chemical analyses. e.) Practice
Premium Iodine Microscope Concentration
Michael Tarabula 11-3-2005 Jethro Tull’s Seed Drill Jethro was born in Basildon‚ Berkshire in 1674. He is widely known for his invention of the seed drill that improved agricultural ways greatly. The seed drill prevented farmhands from broadcasting the seed‚ which is just throwing the seed out in no form‚ and made it where the seeds were put in orderly rows. The seed drill allowed the farmers to make rows of seeds instead of broadcasting. This made it easier for farmers to weed
Premium Agriculture Plant Seed
has small spots on the undersides of its leaves. These are clusters of the Pterophyte sporangia‚ called sori. As in mosses‚ meiosis occurs in the sporangia‚ which then release spores‚ continuing the cycle. <br> <br>Mitosis in Bryophytes begins germination‚ or growth. It directly follows meiosis. As mitotic division continues‚ protonemata (1N) are formed. They grow until they are mature gametophytes. In Pterophytes‚ mitosis occurs directly after fertilization. The zygote divides and grows until it
Premium Fern Plant
The texture and other physicochemical characteristics of the soil gets affected. • The mites and other insects can’t survive in oil contaminated land leading to major imbalance in the food chain. • Oil contamination has adverse effect on seed germination. Farmers loose its crops and are not able to grow agricultural crops for years after years. • Effect on economy of the farmers. Effect on Fresh water Eco-system and ecological habitat: • A large percentage of the oil spills gets spread over
Premium Air pollution Water Pollution
Researches on Scientific Aspects of Yāga and Soma Yāga 1. The basic components of Yāga are heat (fire) and sound (mantra)‚ They subutilise the matter into energy and generate the electromagnetic waves which transmits desied sonic signals at cosmic level. Performing the Fire rituals (Yajña) with samidhas and Havishyas offered in the presence of sunlight reduces CO2 and more oxygen is liberated and these occur in the ultra-violet and other wavelength regions posing no threat to the environment
Premium Carbon dioxide Greenhouse gas Global warming