organic fertilizers for grass

The fertility of the topsoil can be restored by taking the following measures. a) Regular use of manures and fertilizers can replenish the minerals used by the crops. Green manuring can also be done. b) Crop rotation should be practiced c) New techniques of applying water benea..

The farm yard manure or organic manure or bio fertilizers and inorganic fertilizers supply the necessary plant nutrients to the soil. Thus, application of such materials increases the nutrient value of the soi..

Pesticides, detergents, chemical dyes and other industrial chemicals and their waste constitute synthetic organic compounds. When present in water, these chemicals can act as toxic poisons for plants, animals and humans. Such chemicals enter the hydrosphere either by usage, by accidental..

. Such bacteria are found - where grasses, cereals are grown. They fix atmospheric nitrogen and make it available to crops. Fixation of nitrogen by such bacteria may occur naturally in very ideal situation. But such fixation process may have to be enhanced by external application of bacte..

Control of land loss and soil erosion can be attempted through restoring forest and grass cover to check wastelands, soil erosion and floods. Crop rotation or mixed cropping can improve the fertility of the lan..

(Embryology) It is the study of early life history of individual organisms from the fertilized egg to the adult stage (Ontogeny..

Land is also a precious resource. Land is needed for agriculture and occupation. Land is under pressure due to increasing population. Land for agriculture has to be fertile in order to be able to support a good crop. The fertility of land lies in the quality of the soil. Soil is..

Erosion of soil can be due to action of water or air. Erosion of soil by water can be prevented by a) Checking of overgrazing and stopping the cutting down of forests. b) Terracing of sloping lands reduces the speed of water and prevents soil erosion. c) Bunds around the fields checks the erosion ..

The biological method involves the use of some appropriate insects or some other organisms on the crop field having weeds. They selectively destroy the weed plants but do not harm the crop plants. Example: Cochneal insects are used to eradicate opuntia (a weed, commonly called prickly pe..

The pH of the soil is very important for having proper crop yield. The soils get buffered due to the presence of salts such as carbonates, bicarbonates, phosphates and organic acids. The choice of fertilizers depends upon pH of the soi..