nitrification or nitrogen fixation.
aslo is know as False.
Its true
True
nitrogen :)
Urine contains nitrogen which can improve soil for future crops
Continuous planting of crops on soil can lead to soil depletion of essential nutrients for plants, especially nitrogen and phosphorus. Nitrogen can be replaced by crop rotation (in other words, every third year growing beans or peanuts on the soil), or by using nitrogen fertilizers (the first is better because it doesn't pollute the water supply). Phosphorus is generally obtained from phosphate fertilizer.
how is tilling of soil useful for the crops to grow in it
NPK is fertilizer. It comes as a ratio of the amount of Nitrogen (N), Phosphorus (P) and Potassium (K) is in the fertilizer mixture. Fertilizer is added to crops when they are seeded to help in growth.
Because elemental nitrogen is unusable by plants. It must be converted in the soil to a usable form and adsorbed by soil particles for plants to be able to utilize it.
the bacteria do not function properly when they are introduced into the plants.
The bacteria do not function properly when they are introduced into the plants.
Plants draw carbon dioxide out of their environment and use it to build biomass, as in carbon respiration or the Calvin cycle, a process of carbon fixation. Nitrogen fixation, natural and synthetic, is essential for all forms of life because nitrogen is required to biosynthesize basic building blocks of plants, animals and other life forms, e.g., nucleotides for DNA and RNA and amino acids for proteins. Therefore nitrogen fixation is essential for agriculture and the manufacture of fertilizer.
role of nitrogen sugar crops production role of nitrogen sugar crops production
Nitrogen is very important to many crops; without nitrogen the production is decreased.
Plants need nitrogen in order to grow. Nitrogen is abundant in the earth's atmosphere, but plants cannot use it in that particular form (nitrogen gas). Certain bacteria which reside on some plant roots are able to change atmospheric nitrogen into a form that plants can use (ammonia).
nitrogen :)
Because for many crops, nitrogen is probably the single most important plant nutrient.
Legumes are important for two reasons. One, the bacteria on their roots convert atmospheric nitrogen into ammonia, which is a form of nitrogen that plants can utilize. Two, many types of legumes are important food crops. As a result, legumes are the most commonly used plants in crop rotation. Legumes can be grown on nitrogen depleted soil and will replenish the soil's nitrogen levels for future crops, and at the same time they provide useful food for humans.
The isotope nitrogen-15 was used for the study of nitrogen dynamics in soils and plants.
Because leguminous plants are those plants which have nitrogen fixing bacteria in their roots in the modules of nitrogen. thus to fix the nitrogen to the soil or in crops is the work of those bacteria namely rhizobium and azotobacter thus without these plants we wont have these bacterias and alos the nitrogen