climate control MCPIR - René Corsten Delphy.pdf

Carbon dioxide fertilization involves increasing carbon dioxide levels in greenhouses to improve plant growth and yields. Higher CO2 levels shift the activity of the enzyme rubisco to favor carbon fixation during photosynthesis. On average, yields increase 33% when CO2 is doubled. Commercial greenhouse operations commonly use natural gas, propane, or boiler flue gases to maintain CO2 levels between 1000 ppm for sunny conditions to 700 ppm for young plants or lower for cloudy days with more ventilation. Higher CO2 leads to increased sugar levels in fruits and vegetables, improving taste, growth rates, and time to flowering for some ornamental crops.

Greenhouses allow for control of the components of a crop's microclimate, including light, temperature, relative humidity, ventilation, and carbon dioxide. Light intensity and wavelength affect photosynthesis rates, with optimal light between 32.3-129.6 klux. Temperature influences enzyme activity, with day temperatures generally 3-8°C higher than nights. Relative humidity is maintained between 50-80% through humidification and dehumidification. Ventilation manages air temperature, carbon dioxide, and humidity. Carbon dioxide is essential for plant growth, with most crops responding well to levels between 1000-1200 ppm in greenhouses.

The document discusses solar thermal technology and its applications for rural India. It begins by explaining how solar thermal works by heating a liquid using sunlight. It then classifies solar thermal systems based on achievable temperature (low, medium, high) and concentration type (concentrating vs. non-concentrating). The main solar thermal devices discussed are flat plate collectors, evacuated tube collectors, compound parabolic concentrators, and cylindrical parabolic trough collectors. Applications include water heating, space heating, cooking, and industrial processes. The document also examines thermal energy needs across different sectors like household, industry, agriculture, and provides temperature ranges for various processes.

This document discusses environmental parameters that affect plant growth in greenhouses, including light, temperature, and air composition. It describes how light intensity, spectrum, and photoperiod impact photosynthesis and plant development. It also explains different lighting options and methods for controlling temperature, such as active heating/cooling systems or passive techniques like water storage and shading. Optimum temperatures ranges for plant growth are discussed along with the effects of temperature on physiological processes.

Banana Ripening Plant Manufacturer intro market process infra power consumption cost analysis thanks

What can you do with a hot and humid grow room, read this https://cannabis.net/blog/how-to/what-can-you-do-when-your-grow-room-gets-too-hot-or-humid

The document discusses plant response to greenhouse environments and instruments used to control greenhouses. It describes key greenhouse environmental factors like light, temperature, air composition, humidity, and CO2 concentration. It then explains how each factor affects plant growth and desirable levels. The document also outlines portable instruments that can be used to measure and control important environmental conditions in greenhouses, including thermometers, hygrometers, anemometers, CO2 monitors, light meters, and pyranometers. These instruments help greenhouse operators accurately measure and regulate the environment to optimize plant growth.

The document discusses curing of horticultural crops. Curing involves toughening and healing of wounds through processes like suberization and lignification. It is common for root, bulb, and tuber crops as well as citrus. Curing allows wounds to heal, minimizes water loss, reduces microbial attacks, and dries bulb crop necks. Optimal temperature, humidity, and duration varies by crop but generally involves maintaining appropriate conditions for 7-14 days. Factors like temperature, humidity, gas levels, wound type, and time after harvest impact the curing process.

This document discusses protected growing structures for plants like tomatoes. It describes the benefits of growing plants indoors, such as longer growing seasons and protection from pests like blight, but also the limitations, like higher costs. Several materials used for construction frames are outlined, including their strengths and weaknesses, such as wood requiring more maintenance but having good thermal efficiency. Different glazing materials are also compared in terms of their light transmission, insulation, lifespan, and costs. The learning objectives cover the benefits and limitations of protected structures, the effects of environmental factors on indoor plants, and characteristics of construction and cladding materials.

The document discusses why farmers in a rural village grow certain crops such as oil palm, rubber trees, and rice. It provides details on the suitable growing conditions for each crop, including soil type, climate, and differences between C3 and C4 plants. Specifically: 1) Oil palm, rubber trees, and rice are grown because the land has fertile soil and suitable conditions for these commercial crops. 2) Oil palm and rubber trees can grow in a variety of soil types as long as the soil has good drainage. Rice grows best in humid, flooded soil. 3) Each crop thrives under different temperature and rainfall conditions that are typical for the region.

This document discusses climate regulation techniques in greenhouses. It describes controlling temperature, relative humidity, light, carbon dioxide, and other environmental factors to optimize plant growth. Methods covered include ventilation (natural and forced), shading, cooling systems (evaporative pads, fog/mist), heating (unit heaters, pipes), solar radiation filtration, air circulation, CO2 enrichment, and lighting (LED, fluorescent, halide). The goal is maintaining suitable conditions for photosynthesis, transpiration, and plant development.

This document describes a research project to design an automatic greenhouse sensor system. The goal is to construct a greenhouse model that can automatically control light, aeration, and drainage based on sensors related to photosynthesis factors like light and humidity. This system aims to increase crop productivity, especially for leafy plants, by shortening planting cycles and improving efficiency with less manual labor required. It provides background on photosynthesis and how light intensity, carbon dioxide levels, and temperature can impact the rate of photosynthesis. It also discusses greenhouse structures and how glass traps heat to warm the interior for plant growth.

What marijuana growers and investors need to know. The cannabis cultivation laws in CA, OR, WA and CO are vastly different. Eric explains each states current cultivation laws and the reasons behind them. In addition to the best management practices for growing cannabis in a greenhouse environment for each state's climate.

This document provides an overview of mold prevention and water damage restoration. It discusses analyzing water claims, the life cycle of water claims, and steps to prevent mold claims. It covers types of insurance claims, mitigation strategies, common policy language, homeowner responsibilities, and the restoration process. It also details best practices for classifying water losses, extracting water, air movement, dehumidification, temperature/humidity control, and determining equipment needs.

Different types of farming methods as of 2012. Startup costs, and comparison. Production times, system types, water and electric consumption information is also included.

The document summarizes greenhouse tomato production in Morocco, comparing 4 locations and outlining future steps to improve quality and production. There are currently over 5,000 hectares of tomatoes grown under plastic with low-cost, low-tech methods. Substituting soil with substrate is identified as a first step to increase production by 25% through better crop management and water/fertilizer savings. Transitioning to "active" greenhouse climate management using heating, cooling, and controlled ventilation in modern greenhouse structures could further increase yields and quality over traditional methods. Testing various production concepts tailored to each location's climate conditions is recommended to optimize greenhouse tomato farming in Morocco.

The group members are studying different crops commonly grown by farmers in rural areas, including oil palm, rubber trees, and rice. These crops are suitable for the fertile soil and climate conditions in the rural villages. During dry seasons, crop production and farmer incomes may decrease. The group plans to research why farmers choose these particular crops, which crops can survive drought, what soil and climate conditions allow crop growth, and the differences between C3 and C4 crops. They will conduct research online and in journals.

presentation at MCPIR event of 13th of April 2023 (www.mcpir.nl)

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This document outlines the 3 most important learning points from 5 years of cannabis consultancy: 1. Mistakes in starting material like cuttings can negatively impact the entire cultivation cycle. It is important to use anatomically equal cuttings from multiple weekly pickings that are stored and treated properly. 2. Increasing yield by 25% is possible through a faster growing cycle with a shorter vegetative stage and more cycles per year. 3. Flower shape and chemical composition can be manipulated using bio-stimulants, especially in soil-less systems, but a natural substrate is important for their effects. The goal is to optimize cannabinoid, oil and terpene production rather than focusing only on flower

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