method of application.<br />In the early days of farming, people did not understand how plants obtained<br />essential nutrients. It so happened that wood ash, fish remains and slaughterhouse<br />waste were thrown on vacant land just to get rid of them. Then, people started<br />to notice that the grass, bushes and shrubs on this vacant land began to grow<br />very well. They reasoned that if their farmland were similarly treated, the growth<br />of their crops would also improve. People gradually began to realize that the<br />nutrients required by plants came from the soil and that the amount of nutrients<br />could be increased by the application of such organic remains to the soil. Thus<br />started the manuring process in farmning.<br />The practice of manuring has been practised as early since the seventeenth<br />century. However, the importance of manuring was not properly understood<br />until scientists began to study the nutritional needs of plants and gave birth to<br />fertilizers. Thus, gradually, the use of fertilizers became accepted by farmers.<br />There are many types of manure and fertilizer currently being used. Manure<br />is a substance derived from animals and plants. The most important advantage<br />of using manure is the fact that they not only supply a wide range of plant<br />nutrients, but also improve the structure of the soil. It cements together the soil<br />particles to form soil crumbs. The crumb structure is a desirable condition of<br />cultivated soil. The addition of manure to soil will increase the inorganic and<br />humus content which helps to prevent soil erosion and loss of plant nutrients<br />when it rains. The common manure used in farming consists of farmyard manure,<br />compost, blood meal, bone meal and fish meal.<br />Unlike manure, fertilizers are inorganic substances which do not improve the<br />structure of the soil. They only supply extra amounts of nutrients to the growing<br />plants when applied to the soil. The commercial fertilizers commonly used today<br />can be classified into three major categories; namely, nitrogen (N), phosphate<br />and potash fertilizers.<br />Besides knowing the type of fertilizer to use, a farmer also needs to know<br />when to apply the fertilizer and how to apply it. The fertilizer should be applied<br />at the time when the plants need a particular nutrient most. The time and method<br />of application will determine how profitably the fertilizers have been used in<br />farming. Fertilizers which have not been properly applied cannot be absorbed in<br />large quantities by plant roots. These fertilizers may be washed away by rain<br />or they may kill the plants. This would mean a definite financial loss for the farmer.<br /><br />Please write summary of it. Suggest a suitable title for the above Summary.<br />
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