eChapters

Protected Cultivation

Protected cultivation (PC) may be defined as the “modification of the natural environment to achieve optimum plant growth” (Singh, 2005). Modifications can be made to both the aerial and root environments to increase crop yields, extend the growing season and permit plant growth during periods of the year not commonly used to grow open field crops. PC may also indicate comprehensive systems of ‘Controlled Environmental Agriculture’ in which all the aspects of natural environment are modified for maximum plant growth and economic return.

Introduction

Protected cultivation or greenhouse cultivation is the most common technique to grow vegetable crops qualitatively and quantitatively, and has spread widely all over the world in recent decades. Greenhouse agriculture is also known as environmentally controlled planting. The technology involves the cultivation of vegetable crops in a regulated environment in which factors such as tem perature, soil, light, humidity, irrigation, fertilizers, etc. are controlled in order to achieve optimum production and ensure a steady supply even in off-season conditions. In India, the total area under protected cultivation or green house is currently approximately 25 000 ha whereas the protected vegetable area is approximately 2000 ha which has been challenged by land ownership limita tions, decreasing crop production, rapid urbanization, ever increasing popu lation and decreasing biodiversity. Food demand, especially vegetables, has increased growing of different crop varieties as protected crops, or greenhouse has opened up a new dimension to extra production within a limited crop area.

Abstract
India faces a shortfall of 10 million tonnes in vegetable production against a demand of 135 million tonnes, exacerbated by extreme temperatures (5-48°C) that hinder year-round cultivation. Protected cultivation, including greenhouses, polyhouses, and shade nets, offers a solution by enabling off-season vegetable production, enhancing yield, quality, and input efficiency. In regions like Bundelkhand, where agriculture dominates the economy, low-cost protected structures have shown promise in cultivating high-value crops like tomatoes and capsicum, despite challenges such as farmer unawareness, limited capital, and poor infrastructure. Government initiatives, like those by Banda University of Agriculture and Technology, promote low-cost protected cultivation through training and infrastructure development, fostering agripreneurship and improving rural livelihoods by increasing yields and market prices.
Keywords: Protected Cultivation, Vegetable Production, Agripreneurship, Greenhouse Technology, Bundelkhand, Food Security, High-Value Crops, Low- Cost Structures, Rural Development, Input Efficiency

Greenhouse

It is constructed by plastic, polythene, and fibreglass material having temperature control and ample light availability needed for propagating plants by seed, cutting and grafting.

Types of greenhouse

1. Based on shape and style: The commonly followed types of greenhouse based on shape are lean–to, even span, uneven span, ridge and furrow, saw tooth and quonset greenhouse.

Lean–to type greenhouse:

• It is limited to single or double–row plant benches with a total width of 7–12 feet.
• It is typically facing south side. It should face the best direction for adequate sun exposure.
• This design makes the best use of sunlight and minimizes the requirement of roof supports.
  • It has the disadvantages: limited space, limited light, limited ventilation and temperature control.

Introduction

India is a land of diverse agro climatic zones and each of these zones offer a great potential for cultivation of wide range of crops across all seasons. Vegetables form major and important part of our dietary requirements, which are widely grown in the rural and peri-urban areas. Hi-tech horticulture including protected cultivation of high value and exotic vegetables has been on the increase, targeting high end domestic and export market. Of late, due to the population pressure, fragmentation of land holdings and urbanization has led to decline in cultivable area, more so in urban and peri-urban areas. Production of vegetables under protected cultivation system results in effective use of the land resources, besides being able to increase the production of quality vegetables both for the export and domestic markets by offsetting biotic and abiotic stresses to a great extent that otherwise is prevalent in open cultivation. Under protected cultivation, vegetables are widely grown due to higher productivity and economic feasibility.

Greenhouses are frames or inflated structures covered with a transparent or translucent material in which crops can be grown under partially controlled or totally controlled conditions of atleast. It is large enough to permit persons to work within, to carry out cultural operations. Greenhouse cultivation as well as other modes of controlled environment cultivation has been evolved to create favourable microclimate, for the crop production all through the year or during off season, when the produce is highly priced and remunerative. Green house is a broader term of protected structures which includes different types of structures according to the need. Green houses vary in size and complexity from small home or hobby structures to large commercial units, from solar green house to sophisticated environment controlled ones.

1. Which type of vegetable is often grown in shade net house?

a) Tomato

c) Radish

b) Lettuce

 d) Cucumber

2. What is the primary advantage of greenhouse cultivation for vegetable production?

a) Increased exposure to natural elements

 b) Protection from pests and diseases

 c) Lower cost of production

 d) Reduced need for irrigation

Protected cultivation provides controlled or modified growing environments that enable horticultural crops to be produced beyond their normal climatic limitations. This chapter covers greenhouses, polyhouses, shade nets, insect-proof structures, tunnels, and other protected systems. It explains environmental factors such as temperature, humidity, light, ventilation, carbon dioxide, irrigation, and fertigation. Protected cultivation can improve productivity, quality, resource-use efficiency, and production timing while reducing exposure to adverse weather and certain pests. The chapter also discusses crop selection, substrate culture, automation, and integrated management. Proper environmental control and economic planning are essential because protected systems involve higher initial investment but can generate high returns through quality produce and extended market opportunities.

2.1 Introduction

The great impact of increase in population as well as rapid economic growth has given us cause for concern about the future situation of the earth in recent years. Desertification as well as deforestation is continuously changing the landscape. Irrigated areas are being damaged by salinization. The effect to increase arable lands cannot match with the speed of these deteriorating processes. Weather is also being changed gradually by urbanization. In the new millennium, the challenges in the agricultural sector are very different from those met in the previous decades. The enormous pressure to produce more food from less land with shrinking natural resources is a tough task for the farmers. This calls for special effort to manage the key input without eroding the ecological assets and sound knowledge base to sustain agricultural productivity and profitability.

The maximum crop response depends on the level of the balanced environmental parameters. The natural environment and input availability may not be optimum for a given crop. The environmental factors which affect plant growth includes air temperature, relative humidity, carbon dioxide concentration soil temperature and moisture content to the soil. The micro-climate can be artificially controlled by means of plastic covering structure like greenhouse. The plastic covered greenhouse is the only mechanism, which transmits the useful wavelengths of the light spectrum for photosynthetic activity. Further, it also reduces the air movement, which is of great importance for the plant growth and often used to control the spread of plant diseases.

As far as plant propagation is concerned sunlight provides the primary energy for photosynthesis, the food chain and all human nutrition. The expansion of crop and flower production in various types of greenhouse during the recent years has enabled the growth of agricultural products throughout the year. An agricultural greenhouse consists of frames of metallic or wooden structure covered with a transparent material preferably plastic which provide a suitable environment for the intensive production of various crops. A greenhouse is essentially an enclosed structure, which traps the short wavelength solar radiation and convert and finally stores the long wavelength thermal radiation to create a favorable microclimate for higher productivity. Open field agricultural farming has no control on the environmental parameters such as sunlight, air composition and temperature that influence the plant escalation. Hence, a large number of winter vegetables, flowers and other horticultural crops have to be transported from distant places. Future greenhouse systems in moderate climates will have to be energy efficient. Greenhouses will have decreased transmission for long-wave length radiation and increased transmission for short-wave-radiation compared with common shelters.

Due to increase in population, rapid urbanization, industrialization and shrinking land holdings, there is tremendous pressure on availability of land resources for agriculture, which results in decreased arable land area year after year. The huge gap between present production and future requirements necessitates intensive vegetable production and availability at affordable prices. Vegetable production can be enhanced either by increasing productivity, use of improved cultivars and ago-techniques, bringing additional land under vegetable crops or by promotion of protected cultivation. By adopting protected cultivation, year round availability of quality produces both for domestic use and export can be assured.

Several biotic and abiotic stresses are the major factors responsible for low productivity and poor quality in large number of vegetable crops under open field cultivation more specifically during rainy and post rainy season. The increasing demand of off-season and high quality vegetables in various markets of the big cities had call the attention of the vegetable growers for diversification from traditional ways of vegetable cultivation to modern methods of vegetables cultivation in an agri-business entrepreneurial models. Under the new era of FDI (Foreign Direct Investment) in retail these kinds of models are having high potential for betterment of the farmers opting for quality and offseason vegetable cultivation through protected cultivation. Protected cultivation structures are useful for combating both biotic and abiotic stresses that limits the productivity and quality of vegetable crops. This requires careful planning, attention and details about timing of production and moreover, harvest time to coincide with high market prices, choice of varieties adopted to the off season environments, and able to produce economical yields of high quality produce etc.

Introduction

Biodiversity conservation and sustainable use are critical for maintaining the health and well-being of the Earth and all its inhabitants. Biodiversity provides essential ecosystem services, resources, and cultural values, and is under threat from various human activities. Conservation and sustainable use are necessary for preserving biodiversity and ensuring a sustainable future, and require the participation and collaboration of all stakeholders.

The protection and restoration of biodiversity are complex challenges that require a multidisciplinary approach and a commitment to sustainability. This includes addressing the underlying drivers of biodiversity loss, promoting sustainable land-use practices, protecting ecosystems and wildlife, and engaging in education and awareness-raising activities. By working together to conserve and sustainably use of biodiversity, we can ensure a healthy planet for future generations.

Introduction

Since 2001, India’s human beings population has crossed 1000 million, which is presently 1361 million and will became more than 1462 million during 2025. Such a large population of human beings can be fed and clothed only if we make the best use of the country’s land and water resources. While water is replenishable natural resource. Contrary to this, the land is a non-renewable and irreplaceable resource. It, therefore, becomes an imperative to think of about the main problems of protecting/preserving and managing the land resources f irst of all and thereafter managing the water resources. Such an approach will, infant, prove a solution of both of these resources. It is because if the land of the country is looked after properly, the problem of water management would be automatically tackled (Singh, 2007)

Out of the total land area of India, about 329 million hectares (m ha) as many as175 m ha suffer from degradation, caused for the most part by the soil erosion, water logging, soil salinity and sodicity as well as acidity. This denotes that on an average at least two out of every 3 acres (1.2 ha) of land is in poor condition. It is also known that at least half of the sick land i.e., one third of the total is almost completely unproductive. Another one third is partially productive and it is only the remaining one third is in good health.

Productivity measures, such as rate of growth or reproduction have traditionally been used as indicators of biological functioning. If this is regarded as closely related to animal welfare, then high productivity should be evidence for a high state of welfare. In some cases, selection for production has pushed animals to the point where basic biological functioning and body maintenance is compromised. Therefore, Production measures are always misused.  Productivity of the group is a different measure than productivity of the individual. Such group overall is performing poorly but that productivity from a few outstanding individuals makes average productivity look high. Similarly specific individuals who are performing very poorly may be overlooked if average group performance is high. Although commercial organized dairy farms are very limited, but welfare issues are always there in both small and large farm. Some of the important issues in the organized farms are discussed below.

Performing animal means any animal which is used at, or for the purpose of any entertainment to which the public are admitted through sale of tickets. Thousands of wild animals are used worldwide to perform demeaning and unnatural tricks to entertain the public (circuses, side-shows, within zoos, and in advertising, film and television). 
There are number of welfare issues related to performing animals which involves animal fighting, shows, (among domestic animals) or entertaining wild animals.

Pig production is concentrated mainly in the North-eastern corner of the country and consists primarily of backyard and informal sector producers. Though pig population is only 2% of all the livestock animals, Pork production in India  represents 7% of the country’s total meat production. This value is highest compared to any other species of meat animals.

1 Broilers

The broilers are also called young meat chickens; generally attend a body weight of 2 kg at 35-38 days of age with a feed conversion of 1.5-1.8. This improvement in growth is equivalent to reduction of market age by one day per year. This fast growth is possible due to intense feeding good quality feed & growth promoters in less space. However, this type of rearing has challenges many welfare issues in broiler farming.

Sheep and goat rearing in India continues to be traditional even today. This sector is primarily in the hands of poor, landless or small and marginal farmers who raise their animals on natural vegetation, stubbles and supplement tree lopping. The productivity of sheep in India is relatively low with an average body weight gain of 20 to 50 g/day. The major causes for the low productivity are inadequate grazing resources, tropical heat and disease incidences and a lack of awareness about improved management practices.

Long used as beasts of burden, animals in India are still regarded today as little more than commodities rather than sentient beings who feel pain, stress, exhaustion and depression. Low literacy rates and the tendency to follow traditional practices and cultural traditions have left India surely lacking in the area of animal welfare. India holds the majority of the world’s working animal population. Animals that are forced to work in India include bullocks, horses, ponies, mules, donkeys, camels, elephants and dogs. Despite a proud heritage and a culture rooted in tolerance and compassion, animal welfare is largely ignored by Indian society, leading to extreme animal suffering. Our villages and to a great extent, the urban population still allow working animals to be mercilessly exploited in fields, on the streets, in brick kilns, on battlefields, on playgrounds and in timber areas – all in the name of agriculture, entertainment, security and any number of other “justified” pursuits.

ABSTRACT

This paper is an attempt to draw the attention of readers of this volume to understand the importance of documentation and preservation of earth’s resources.  

Introduction

Earth has innumerable treasures that were and are being exploited by mankind. Geo-resources in the form of minerals, non-renewable hydrocarbons, paleontologic relics and related evidences indicate earth’s evolutionary history. Continuum of biological activity albeit varying rates of proliferation had resulted in accumulation of natural resources embedded in Earth and distributed at specific geographical niches. Biological perspective of earth history is significant in unraveling bio-geo-sphere interactions through geological time. Fossil records of invertebrates, vertebrates and plants are signals of major changes in earth’s evolutionary history. These constitute unparalleled windows to understand continental separation. Intercontinental and intra continental migration of living forms are also traced through fossil study.