eChapters

Vegetable occupy an important place in diversification of agriculture and have played a pivotal role in food and nutritional security of ever growing population of our country. The vegetable requirement of our country is estimated at 225 million tonnes by 2020 (Paroda, 2020) against only 134 million tonnes in 2009-10 (NHB, 2010). India is facing, today, with stagnation in crop productivity and slows down in agricultural growth. Declining soil health and fertility is considered as one of the factor for such a decline. The restoration of soil health and fertility is, therefore, a formidable challenge before us to ensure higher and sustainable productivity, profitability and national food and nutritional security.

Indian crop production system excels in front of several biophysical adversities commonly known as biotic and abiotic stress.  Water is the principal factor limiting crop yield and about 2/3 of total cultivated landing India comprise of Dry land agriculture primarily under rainfed conditions with no or limited water supply system.  The Indian production systems are dominated by cereals, primarily rice maize, sorghum, pearl millet other coerces and fine cereals leguminous (urd bean, mung bean, peanut) and oil yielding crops during kharif and  wheat barley chickpea, lentil and forage legumes in rabi  season.  The production systems are generally characterized by cereal/legume mixed-cropping dominated by maize, millet, sorghum and wheat. The major constraints in both regions to crop production are low soil fertility, insecure rainfall, low-productive genotypes, low adoption of improved soil and crop management practices, and lack of appropriate institutional support. choice of crop  is important but selection of right varieties is utmost  important because  varieties which have proven excellent in irrigated or high rainfall areas are generally not suited for limited irrigated conditions.

Introduction

Under the present scenario of growing human population and shrinking land and water resources for agriculture, expanding abiotic and biotic stresses, increasing genetic erosion; relentless efforts are needed to enhance the plant productivity as well as quality of produce. In fact, improvements in agricultural production as well as food and nutrition conditions depend on land, water and energy resources, which are, undoubtedly, limited and depleting at a rapid pace.

Biotechnological innovations in conjunction with conventional technologies have opened new frontiers in agriculture thereby offering exciting opportunities for increased sustainability and profitability in agriculture. Thus, biotechnological tools complement (rather than replace) the traditional methods used to enhance the agricultural productivity to cater to the needs of third world agriculture (Swarup and Srivastava1990, Rao et al. 1996).

Fisheries
DSIR/TPDU/TIF 056 and E-28-GO-GOI Research Scheme on “Documentation and Preservation of Agricultural Traditional Knowledge through Farmer Participatory Approach”

Medicinal Plants
DSIR/TPDU/TIF 056 and E-28-GO-GOI Research Scheme on “Documentation and Preservation of Agricultural Traditional Knowledge through Farmer Participatory Approach”

Agricultural Tools
DSIR/TPDU/TIF 056 and E-28-GO-GOI Research Scheme on “Documentation and Preservation of Agricultural Traditional Knowledge through Farmer Participatory Approach”

Seed Storage Structures
Seed Storage Structure
Kuluppai / Kulumai (Mud Pot)
Th. Gopalakrishnan, 52 years old is residing in A.Edayapatti village in Manapparai taluk of Trichy district. He is educated up to 10^th standard and has agriculture as his primary occupation. He possesses a post harvest storage structure called ‘kuluppai/kulumai’.

It is a storage structure used to store grains, which is suited to all ecosystems. This structure is invented by ancestors and maintained for more than 100 years until now. 

Post Harvest Methods
DSIR/TPDU/TIF 056 and E-28-GO-GOI Research Scheme on “Documentation and Preservation of Agricultural Traditional Knowledge through Farmer Participatory Approach”

Crop Protection Measures
DSIR/TPDU/TIF 056 and E-28-GO-GOI Research Scheme on “Documentation and Preservation of Agricultural Traditional Knowledge through Farmer Participatory Approach”

Crop Management Practices
DSIR/TPDU/TIF 056 and E-28-GO-GOI Research Scheme on “Documentation and Preservation of Agricultural Traditional Knowledge through Farmer Participatory Approach”

Traditional Varieties

This chapter contains the description of the Indigenous Traditional Knowledge practices as subject wise manner viz, Traditional varieties, Crop management, Crop protection measures, Post harvest methods, Storage structures, Farm tools, Medicinal plants, Ethnoveterinary practices, Fisheries and others related to agriculture.

Warren (1987) defined indigenous knowledge as local knowledge, knowledge that is unique to a given culture or society. This knowledge is the information base for the society, which facilitates communication and decision making. Indigenous knowledge is passed down from generation to generation by word of mouth.
 
Carter (1988) while describing the nature of indigenous knowledge indicated that IK is highly localised and restricted. Local environmental factors and cultural conditions govern the revolution of IK these vary between countries, regions and even farm to farm.

India over several millenniums has been the treasure land of biological wealth, intellectual knowledge and spiritual wisdom. During both pre and post Vedic periods, arts, science and technology had flourished well in various fields. Indian agriculture to some extent is much traditional and dates back to about 10,000 years. India with its traditional crop varieties and crop production technologies was able to feed its population and also exporting some selected produces to other continents. All the Indian villages had been the self sufficient, self sustained and self reliant units. The development of modern agricultural production was achieved by creating large scale specialized farm production units, increased mechanization and use of chemical inputs.

Heat units also called growing degree-days (GDD), effective heat units, or growing degree units, are a heuristic tool in phenology. GDD is a simple means of relating plant growth, development and maturity to air temperature. The concept is widely accepted as a basis for building phenology and population dynamic models. Degree day units are often used in Agrometeorology, Agronomy, Entomology and Pathology essentially to estimate or predict the lengths of the different phases of development in crop plants, insects, pathogens etc.

The agro-meteorological data after the quality control is used to establish a relationship between the crop and weather or to understand their interactions. In agrometeorological data analysis, statistical tools are used. The frequent use of statistics terms and their computational formulas are given below for ready reference:

Weather has profound influence on agriculture, which demands that the changes in weather conditions are regularly monitored. In qualitative terms, weather conditions are often expressed on the basis of final condition created by interaction of different components. For example, too hot, too cold, sunny or cloudy, humid, dry weather conditions refer to specific atmospheric conditions but are least useful in analyzing the impact of weather on agriculture.
 
The measurements taken at a weather station can include any number of atmospheric observables. The WMO has laid down specifications, procedures and practices in respect of various meteorological matters such as instruments, observations, telecommunications, processing of data, analysis etc.

Weather phenomena are not localized, it moves and varies over space and time. The weather over a place or area is the result of far away weather events/conditions. Acquisition of global scale observation, therefore, becomes a pre-requisite for understanding the physics of the weather and also to represent the weather condition over an area at a particular time. Complex three-dimensional models of weather systems can be made by collecting weather data at multiple levels in the atmosphere. Upper-air data are important to know present weather over a place and crucial for weather forecasting.

Real time weather data at different time intervals is very important for the crop weather studies, but through the agro-meteorological observatories such real time weather data are generally not collected. The acquisition of agro-meteorological data through conventional observatories requires services of trained personnel to collect, compile and creation of weather data base. With the advances in technology, weather observations are automatically recorded, stored and can be transmitted to the remote place with the help of Automatic Weather Station (AWS).

Evapotranspiration (ET) is the combined loss of water from vegetation and soil. When water is not a limiting factor at a site, the rate of ET is primarily controlled by meteorological factors like solar radiation, temperature, wind and relative humidity. The measurement of ET under natural conditions is of great importance in the water resource management and irrigation planning. Potential evapo-transpiration (PET) is the evaporation from a surface if water was never a limiting factor. PE-can also be calculated using empirical formulae.