TAILIEUCHUNG - HYDROGEN, OXYGEN AND NITROGEN AND GROWTH

How do plants obtain their hydrogen and oxygen? Let us now consider the three gases, hydrogen, oxygen and nitrogen, which constitute the remainder of the organic part of plants. Hydrogen and oxygen compose water, which, if analyzed, yields simply these two gases. Plants perform such analysis, and in this way are able to obtain a sufficient supply of these materials, as their[Pg 24] sap is composed chiefly of water. Whenever vegetable matter is destroyed by burning, decay, or otherwise, its hydrogen and oxygen unite and form water, which is parted with usually in the form of an invisible vapor. The. | HYDROGEN OXYGEN AND NITROGEN AND GROWTH HYDROGEN AND OXYGEN. What is water composed of If analyzed what does it yield How do plants obtain their hydrogen and oxygen Let us now consider the three gases hydrogen oxygen and nitrogen which constitute the remainder of the organic part of plants. Hydrogen and oxygen compose water which if analyzed yields simply these two gases. Plants perform such analysis and in this way are able to obtain a sufficient supply of these materials as their Pg 24 sap is composed chiefly of water. Whenever vegetable matter is destroyed by burning decay or otherwise its hydrogen and oxygen unite and form water which is parted with usually in the form of an invisible vapor. The atmosphere of course contains greater or less quantities of watery vapor arising from this cause and from the evaporation of liquid water. This vapor condenses forming rains etc. Hydrogen and oxygen are never taken into consideration in manuring lands as they are so readily obtained from the water constituting the sap of the plant and consequently should not occupy our attention in this book. NITROGEN. If vegetable matter be destroyed what becomes of these constituents What is the remaining organic constituent Why is it worthy of close attention Do plants appropriate the nitrogen of the atmosphere Nitrogen the only remaining organic constituent of vegetable matter is for many reasons worthy of close attention. 1. It is necessary to the growth and perfection of all cultivated plants. 2. It is necessary to the formation of animal muscle. 3. It is often deficient in the soil. 4. It is liable to be easily lost from manures. Although about four fifths of atmospheric air are pure nitrogen it is almost certain that plants Pg 25 get no nutriment at all from this source. It is all obtained from some of its compounds chiefly from the one called ammonia. Nitric acid is also a source from which plants may obtain nitrogen though to the farmer of less importance than ammonia. .

• Nông nghiệp
• agriculture
• planting methods
• soil improvement
• secret plant
• document the agricultural industry
• agricultural report
• english agriculture
• agriculture document
• ebook agriculture
• agriculture specific study
• farmers
• forty centuries
• elements
• Urban agriculture
• Urban agriculture in the city of Havana
• A popular response to a crisis
• Characteristics of urban agriculture
• The emergence of urban agriculture
• Attitude of farmers towards agriculture
• Farmers towards agriculture
• Land holding
• Towards agriculture
• wetricecultivation
• farming
• fordairy
• poultryreview
• survival
• civilization
• Crop monitoring
• Drone in agriculture
• Application of Drone in agriculture
• Agriculture sector
• Soil and field analysis
• Bird control
• Breeding crops
• Organic agriculture
• Basically organic agriculture
• Product oriented
• Organic agriculture are derived
• Climate change
• Carbon sequestration
• Smart agriculture
• Climate resilient agriculture
• Precision agriculture
• CROPWAT model
• Irrigation water
• Water balance
• Agriculture production in the dry seasons
• Agriculture production
• Water balance for agriculture production
• Agriculture farmers
• Constraints faced by agriculture farmers
• Constraints of livelihood generation
• Drought in agriculture
• Schooling of children
• Turkish Journal of Agriculture and Forestry
• Tạp chí Nông Lâm nghiệp
• Sustainable computing in smart agriculture
• Sustainable computing
• Sustainable algorithms
• Sustainable Agriculture
• Painkiller Solutions
• Sustainable Versus
• Energy Crop
• Food security
• Natural resource
• food security sustainable agriculture
• Major policy for sustainable agriculture
• SWOT analysis of agriculture
• SWOT analysi
• Agriculture in Kandhamal district
• Economy is mostly based
• Food security but agriculture
• Agricultural journalism
• Communication technology
• Agriculture journalism brings employment
• Agriculture information
• Agriculture radio station
• Big data
• Decision support system
• Tool for agriculture
• Transforming agriculture
• Farmers to mitigate
• Climate change on agriculture
• World’s agriculture
• High tech agriculture
• Context of industrialization
• Context of urbanization
• Development of high tech agriculture
• Artificial intelligence
• Digital twins