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Fertilizer usage is linked to the agricultural practice with an aim to enhance the crop yield. Inadequae use of fertilizers however causes soil degradation because these practices overlook the spatial differences in soil fertility status in agricultrual systems. Specifically, not all soils require fertilizer application at the same levels. A recommended approach is that, initially, there should be a proper study of limited nutrients in the soil and thereon only those nutrients should be given at controlled concentrations, which are limited. A major reason is that high concentration of specific nutrients would affect the bioavailability of other nutrients in the long run and could also lead to soil degradation (by affecting soil health status). The microbial population in the soil could also change that are typical for essential biogeochemical cycles. This is a very critical aspect in future future agriculture and to preserve the environment. Deforestation is a condition when the plants are cut excessively for agricultural purposes. If soil degradation continues as discussed above, it would put a reduce the overall proportion of agricultrual land and cutting of naturally grown forests would be required. This would turn the green zones into agricultural zones (in future). This is a pressure on ecosystem and the consequences can be really harsh.

6 0

3 years ago

Meiosis I involves separation of homologous chromosomes but meiosis II involves separation of chromtids.

Angelina_Jolie [31]

Answer:

Meiosis I: in meiosis I there is pair of chromosomes called homologous chromosomes which are to be seperated so one of that two chromosomes right pole of the cell and the second one goes to the left pole so each pole gets a chromosome with two sister chromatids.

Meiosis II: While in meiosis II homologous pair is not formed and single array of chromosomes are arranged to form metaphase plate as formed in Mitosis so, when the spindle fibres contracts each sister chromatids went to their respective poles.

Explanation:

6 0

3 years ago