Soil Formation Soil is formed from parent materials which is formed by weathering of rocks. Different weathering processes are discussed here. WEATHERING Weathering is a process in which different physical and chemical changes are produced in rocks at or near…
BIOLOGICAL NITROGEN FIXATION Although the atmosphere contains a vast reservoir of molecular nitrogen (N2) that is about 79%of the air, however, it is not directly available for use by higher plants. Before assimilation can occur, it must be converted to…
Phosphorus Phosphorus is critical to all life forms because of the role it plays in many important biomolecules such as DNA (deoxyribonucleic acid), phospholipids, and ATP (adenosine triphosphate). The primary mineral form of phosphorus is rock phosphate, or apatite.…
Multiple Cropping and Soil Productivity Muhammad Waseem Abbas, Shakeel Ahmad Anjum, Nadeem Akbar, Iftikhr Ali, Nazer Manzoor, Abdul Shakoor, Muhammad Mahmood Iqbal, Ali Usman, Muhammad Bilal Agro-Biology Laboratory, Department of Agronomy, University of Agriculture, Faisalabad, Pakistan, 38040. Multiple cropping and…
Salinity is a serious problem affecting irrigated agriculture. Improper irrigation practices and lack of drainage have generally led to accumulation of salts in the soil in concentrations, which are harmful to crops Muhammad Mohsin Raza1,Malik Muhammad yousaf1,Samiullah2,Mumtaz Hussain 1,Muhammad zeshan1,…
Bio fertilizers Bio fertilizers include the chemical which in turn make full use of bacteria for you to fertile your land. These kinds of fertilizers are certainly not unhealthy for plant life as well as various other plant life much…
After discovery of chitin in 1811 by Henri Braconnot a naturalist of France, Professor C. Rouget was first scientist who discovered chitosan in 1859. But during 1930 and 1940, the polymers became popular. Owing to lack of manufacturing techniques, its…
Negative Effect of Synthetic Fertilizers “Fertilizer is good for the father and bad for the sons.” –Dutch saying What Is Fertilizer? Fertilizer is any substance used to add nutrients to the soil to promote soil fertility and increase…
BIOCHEMICAL TRANSFORMATION OF SULFUR SULFUR Sulfur cycle is similar to the nitrogen cycle. Both of these elements exist in a number of oxidation states and undergo similar type of chemical reactions and biological transformations. The majority of S is found…
What is barani areas? Barani areas are those ares in which agriculture totally depend on rainfall water. In Punjab 3.10 million hectares area present out of total 11.83 million hectares and this area…
