eChapters

Common name    :    English - Wire grass/spread grass
        Odia- Suan
Family    :    Poaceae

Habit & Distribution
It is a herb (Fig. 12 a) widely found in agricultural lands, hill sides, road sides, river bank etc. It is distributed throughout India.

General Characters
The plant ascending to erect, grows up to 3-4 feet in height. The leaves may be flat or rolled. The inflorescence either panicle like or raceme with spiky branches. Flowers are tiny and hairs like awns seen protruding from each flower. The plant flowers during September-November.

Common name    :    English- Betelnut
        Hindi- Supari
        Odia- Gua
Family    :    Arecaceae

Habit & Distribution 
The plant is a tree, (Fig. 11 a) naturalized and commonly cultivated throughout India.

General Character
The plant is perennial, grows up to 20 meters in height and 8-12 inches in diameter. The stem is solitary, slender and erect. The leaf of the plant is 1.5-2 meter long, pinnate with numerous crowded leaflets. Fruit is a coriaceous drupe, ovoid, 3.7-5 cm, smooth orange, with a single seed with truncate base. The plant flowers and bears fruits throughout the year.

Common name     :    English- Onion
        Hindi- Pyaz
        Odia- Piaja

Family    :    Amaryllidaceae

Habit & Distribution 
It is a herb (Fig. 10 a). The plant is commonly cultivated along the river banks during winter season.

General Characters
The leaves of the plants are cylindric, fistular and look like tubes. Flower of the plant is white or greenish white with a short pedicel. The plant flowers during January- February.

Common name    :    English- Rain Tree
        Hindi- Gulabi Siris 
        Odia- Chakunda
Family    :    Mimosaceae

Habit & Distribution
The plant is a tree common in dry, lowlands ,grasslands, coastal bush lands, forests and also planted in avenues. It is distributed throughout the tropical countries (Fig 9 a).

Common name    :    English- Wood apple
        Hindi- Bel
        Odia- Bela
Family    :    Rutaceae

Habit & Distribution 
It is a tree, (Fig 8 a) common in scrub and open forests, also planted near temples and villages. The plant is usually distributed throughout the greater part of India.

Common name    :    English- Pith plant
        Hindi- Sola
        Odia- Sola
Family    :    Fabaceae
 
Habit & Distribution
It is a herb (Fig.7a), commonly found in ponds, swampy areas, lakes and other water bodies. It is distributed throughout India.

General Characters
The plant is an erect, perennial herb. Its stem is about 2 cm in diameter. The leaves are sessile reaching up to 15 cm long, leaflets 25-50 pairs, alternate or opposite. The flowers are yellow in colour and about 8 cm long, broadly ovate and acute. The plant flowers between August and October.

Common name    :    English- Red Lucky Seed
        Hindi- Badi gumchi
         Odia- Manda kaincha

Family    :    Mimosaceae 

Habit & Distribution
The plant is a tree (Fig. 6a) often found in gardens and village sides and distributed in different states of India.

General Characters: 
It is a large tree with grey bark. The leaves are compound bipinnate, green when young, turning yellow when old and having 5-6 pairs of leaflets. The flowers are yellowish, small and grow in dense drooping and about 5-15 cm long. Fruits are curved, hanging, green pods that turn brown, coil up and split open as they ripen to reveal small bright red seeds. The plant flowers during March-May.

Common name    :    English- Prickly chaff flower
        Hindi- Chirchita 
        Odia- Apamaranga
Family    :    Amaranthaceae
 
Habit & Distribution
The plant is a herb (Fig 5 a), fairly common weed that grows on waste lands and distributed throughout India.

Common name    :    English- Red hot cat’s tail
        Odia- Bilei lanja
Family    :    Euphorbiaceae

Habit & Distribution
The plant usually seen along the road sides and often grown in gardens (fig 4 a).

General Characters
It is a bushy shrub grows up to 1.8 to 3.7 meters in height. The leaves are ever green, oval, 10-23 cm long and 7.5-10 cm in width with pointed ends. Flowers are borne in attractive shades, ranging in colour from deep purple to bright red and clustered in velvety catkins, which are about 30-50 cm long. The plant flowers throughout the year.

Common name    :    English- Indian mallow
        Hindi- Kanghi 
        Odia- Pedipedica

Family    :    Malvaceae

Habit & Distribution
It is a shrub (Fig.3 a) commonly found in waste places, along road sides, as weeds in garden and in forests. It is distributed throughout India.

Common name: English- Indian liquorice
                           Hindi- Ratti/Gunchi 
                           Odia- Kaincha
Family : Fabaceae

Habit & Distribution
It is a common weed (Fig. 2 a) found in forest and it is also seen growing on road sides, gardens, waste places and sometimes planted in gardens.

Common name:     English – Lady’s finger
    Hindi – Bhindi
    Odia- Bhendi      
Family:     Malvaceae

Habit & Distribution
The plant is a herb (Fig. 1 a), widely cultivated as vegetable in the tropical countries including India.

11.1 Introduction

The laws governing the flow of water in wells are referred to as the hydraulics of wells. Just like surface water flows from a higher elevation to a lower elevation by gravity, groundwater also flows from a region of higher water table to a region of lower water table. This difference of water table measured by any two piezometers divided by the longitudinal distance between them is called as hydraulic gradient. Hydraulic gradient plays a dominant role in deciding the flow of groundwater. This hydraulic gradient together with the hydraulic conductivity of the aquifer material forms the main law of well hydraulics called as Darcy’s law. An understanding of Darcy’s law together with some other laws as discussed subsequently in this chapter is essential in order to know the discharge of a well in a particular formation. Darcy’s law is valid for studying groundwater flow in alluvial formations. However, it is not valid for aquifers having hard rock areas.

10.1 Introduction

During rain or heavy irrigation, a part of the rainfall or irrigated water moves below the effective root zone of the crop which moves further below and adds to the water table lying above the impermeable bed or hard rock which is called as  ground  water  reservoir. At  times  the  accumulated  surface  water  is  also recharged to the soil reservoir both naturally as well as artificially that add to the underlying ground water reservoir. This groundwater is an important source of water for irrigation as well as domestic uses. It is the most abundant fresh water resource of the earth. Underground water reservoirs contain large stock of fresh water resources. Total quantity of groundwater within 800 m distance below  the  ground  surface  is  more than  30  times  the  total  water  in  all fresh water lakes, more than 60 times the total water in soil and other unsaturated rock materials, more than 300 times the water vapour in the atmosphere and 3000 times the average volume of all rivers and rivulets in the world (Lenka, 2001). But the distribution of groundwater is not uniform.

Bhuva is a small village in north-west Gujarat – India.  My mother was born there. The loving people of Bhuva called me ‘Bhano’ (Sister’s Son / Nephew) and it was my favourite place to go as a child. I have my fondest memories of Bhuva, but could not visit for several decades, until when I was once at the Junagadh Campus of Gujarat Agricultural University, to inaugurate the International Conference on New Developments in Agriculture. Bhuva was not too far and I decided to go there. Soon as I reached, a familiar face, now aged with time, recognized me from a distance and with tears rolling from his old eyes (and mine) he hugged me, calling out “MaroBhano, MaroBhano” (My sister’s son, my sister’s son)! Now in his eighties, it was overwhelming to meet Nanji Ata, who I always remembered being wise, educated and cheerful. He was a relatively progressive farmer with about 6 to 7 acres of land, a few cows and a buffalo. Though water was scarce and saline, he managed to make a good living and was considered a well to do man.

It is well recognized that sustainable management and sustainable livelihoods are inseparable. If neglected and if the present trends are not corrected in time, everyone’s future is threated. On the other hand, there is increasing recognition of living examples and demonstrated evidences of how the eco agricultural practices can help provide a solution to some of the major problems of today and tomorrow. Also, the main stream international agencies are emphasizing that agro-ecological approaches are the way forward. What the policy makers, farmers and people would like to know is How !it has been our experience that in most countries of the developing world the answer to ‘How’ of eco-agricultural is being demanded!

Our Soils – Our Waters & COP22

In the last several decades many international forums and institutions have discussed and agreed that food and water security are the most important issues for the future. The damage to the ecology directly affects the food, land, water, health and the livelihood. Agricultural progress serves as the best way to fight poverty, hunger and livelihood problems.

Though in the last few decades, billions of pages about hunger, food and water security have been written, thousands of conferences have been organized, the urgency of action plans and creating holistic models is the most important need. For this, we must require bold reforms and action oriented programs which can reach the smallest farmers and give an optimistic signal rather than a despondent picture. Developmental models that are holistic and close to nature, sustainable and based on inclusiveness considering ‘unto the last’ women and man are the need of the day.

In contrast to the traditional universities, agricultural universities have been entrusted with the Herculean task of technology dissemination at the grass root level such that the package of practices evolved by the agricultural scientists should reach out the end-users, viz. farmers , for adopting in the field, with consequent increment in the farm productivity and farmer’s income.

This unique mandate has been assigned to agricultural universities on the pattern of land grant colleges of the United States. Such vision and trust, envisaged by Pandit Jawaharlal Nehru and his devout lieutenants, herald creation of state agricultural universities (SAUs) in the early 1960s. The key role played by SAUs in the first green revolution and agricultural human resources development have been regarded as the milestones in the history of India post-independence, that made the country self-sufficient in food production and, in turn, to self reliance in milk, vegetables, fruits and inland fish production.

"Where is your Dhoti, Dr. Mehta ?” Dr. Varghese Kurien surprised me as I entered his office at IRMA (Institute of Rural Management Anand). That was April 2000, soon after I had taken over as the Vice Chancellor of the erstwhile Gujarat Agricultural University (GAU) and had decided to call on him during my visit to the Anand Campus. (At that time GAU was the largest University in the Asia with four main campuses – Dantiwada, Anand, Junagadh and Navsari and about 65 experimental farms / stations spreaded all over).

The Late Dr. APJ Abdul Kalam is described as a great patriot, visionary leader and the 11th President of India ( 2002 – 2007 ). The country would have celebrated his 84th birth day on 15th October 2015. To many like me, he was the most ideal role model that the youth of India needed, in recent time. He emerged as a complete human-being who touched the lives of people.

My first meeting with him was when he visited IPCL in eighties - as the DRDO Chief to discuss about Carbon Fiber and Composites. I was heading GSFC’s R&D Centre and other facilities like engineering plastic Nylon – 6 and their Composites and hence was invited to join the discussions. That interaction left a strong impression in my mind. Later when I became Vice Chancellor of Gujarat Agricultural University, I had many more opportunities to meet him and was often surprised at his deep rooted interest and knowledge in every sphere of Science & Technology. Subsequently, to my delight, I received an invitation from his office on the eve of 26th January evening - at home with the President and later was given more time for a one-to-one meeting the next day. Walking across the corridors of the Rashtrapathi Bhavan, the atmosphere looked rather formal and uneasy for me, but, as I was ushered into his room, I saw Dr. Kalam wearing his favourite blue shirt and smiling. He moved forward and greeted me with the same friendliness and warmth. As we started talking about Agriculture scenario, the work I was planning and the future prospects, I marveled at his understanding and insight and left the room truly inspired.