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Maize is one of the world’s leading crops cultivated over an area of about 194 million hectares with a production of about 1147 million tonnes of grain (2020). Among the maize growing countries, USA has the largest area followed by China, Brazil, Argentina, Ukraine and India. In respect of production also USA stands first followed by China. Regarding average yield per hectare USA ranks first followed by China. The average maize yield in India is only 3065 kg per hectare which is much lower than most of the maize growing countries of the world.

System of Rice Intensification (SRI) was first developed in Madagascar during the 1980s SRI uses less inputs. It uses less seed, water, chemical fertilizers and pesticides but uses more organic manures. Rice grown with SRI technology has large root volume, profuse and strong tillers with big panicles, more and wellfilled spikelets with higher grain weight

The field is ploughed once and harrowed twice or thrice until the soil becomes well puddle. Beds are made slightly raised of 1 – 1.5 m in width and conveniently large in size and drainage channels in between the beds. The total area of nursery required to plant one hectare of land is 20 cents (800 m2 ). This method is suited where assured irrigation facilities are available. The beds should not be allowed to dry because they develop cracks and the seedlings will get spoiled. This method keeps down the weeds in the nursery. Seedlings are transplanted at 21-25 and 25-30 days age for SDV and MDV, respectively. Sparse sowing is recommended in case of hybrid rice. One kg of hybrid seed is sown in one cent area of nursery. This helps in good tillering and robust seedlings and makes it possible to transplant single seedling per hill. Seedlings are planted at 20-25 days.

Cereal grain contains 60 to 70% of starch and is excellent energy rich foods for humans. In almost every country and region, cereals provide the staple food. In the world as a whole, only 5% of starchy staple food comes from root crops (mainly cassava, potato, and yams, depending on climate), whereas the rest is from cereal. Cereals are an excellent source of fat-soluble vitamin E, which is an essential antioxidant. Whole cereal grains contain 20 to 30% of the daily requirements of the minerals such as selenium, calcium, zinc and copper.

Pulses may be defined as the dried edible seeds of cultivated legumes. They belong to the family of peas, beans and lentils (Family: Fabaceae). English word pulse is taken from the Latin word ‘Puls’, meaning pouage or thick pap. Pulses are a large family and various species are capable of surviving in very different climates and soils. Pulses are cultivated in all parts of the world and they occupy an important place in human diet.

The word cereal was derived from Ceres, the name of the Roman goddess of harvest and agriculture. Cereals are grasses (members of the monocot family Poaceae, also known as Gramineae) cultivated for the edible components of their grain (botanically, a type of fruit called a caryopsis), composed of the endosperm, germ and bran. Cereal grains are grown in greater quantities and provide more food energy worldwide than any other type of crop and therefore they are called staple crops.

Technical Term                                 Definition

Geographical Information System

Base Map                                          Basic representation of a region of the earth as it would appear if viewed from above. That is a map containing geographic

                                                          features that is used for reference. Roads, for example, are commonly found on base maps

Technical Term              Definition

Land Use Capability     Capability is the inherent capacity of land to perform given at a level for a general use

Technical Term                    Definition

Canal Irrigation System      The system in which irrigation water is supplied through irrigation canals network (main canal, submain canal, distributaries, and

                                            minors) from source of water (reservoirs) to point of application (agricultural lands)

Technical Term           Definition

Fluid Mechanics         Fluid Mechanics is a study of physical behavior of fluids and fluid systems, and laws governing their behavior. It incorporates action of forces

                                   on fluids and the resulting flow pattern

Technical Term                            Definition

Geomorphological Analysis       Geomorphological analysis is the systematic description of watershedís geometry and its stream channel system to measure

                                                   the liner aspects of drainage network, aerial aspects of drainage basin and relief aspects of channel network.

Technical Term          Definition

Soil                             Soil is the superficial unconsolidated and usually weathered part of the mantle of a planet and especially of the earth

Technical Term      Definition

Drainage               Removal and disposal of excess water from agricultural lands is referred as drainage.

Technical Term       Definition

Groundwater         Water present in the zone of saturation (below water table) is called groundwater

Technical Term            Definition

Infiltration                    Infiltration is movement of water from the surface into the soil or ground.

Technical Term                        Definition

Hydrology                               Hydrology is the science of water derived from Greek wordî hydro + logosî i.e., water + sciences and hance defined as the science which deals with occurrence, distribution and circulation of atmospheric water through unending Hydrologic cycle.

Overview of Soil Erosion Conservation Measures

Technical Term           Definition

Soil erosion                Transportation & deposition of soil particles from one place to other after detachment from soil mass.

Agriculture is the lifeline of India that provides livelihood to about 70 per cent of its population dwelling in about 6 lakh villages. In spite of so many projects, programmes and schemes launched from time to time after independence by Government of India through Ministry of Agriculture and Indian Council of Agricultural Research, State Agricultural Universities and Departments of Agriculture, agricultural food grains production was not realized on ìsustainable basisî. Even ìGreen Revolutionî which came to fore during 1967-68 in the irrigated areas alone, could not sustain the productivity of rice and wheat. Rather, the productivity of these crops has either got declined in many cases and/or in other cases it has stagnated.

It is an established fact that there is no further scope for horizontal expansion of area under plough, as the per capita land is decreasing every year due to unabated increase in human population. Hence, the future need of food has to be met through vertical expansion i.e. more intensification of agriculture. Nearly 40 million tonnes of nutrients in the form of chemical fertilizers will have to be utilized to feed upon an estimated population of 1.5 billion by 2050 AD (Sakai, 2001). However, presently the crop productivity especially rice and wheat has stagnated not only in India but in other South Asian countries also (Mahajan and Gupta, 2009).