In 70s of last century before the widespread use of rural primary fertilizer.
As the organic fertilizer in some elements (such as nitrogen, phosphorus and
potassium) content can not fully meet the lawn and crop needs, therefore lower
yield. In order to improve lawn and crop yield, we must increase the amount of fertilizer application
rate. According to statistics, nitrogen organic fertilizer can provide only 30%
of crop nitrogen requirements, 70% rely on chemical fertilizer supply, the
other, such as phosphorus, potassium and other elements also show similar
fertilizations resulting, yield very significant. For this reason, some farmers
began to ignore the application of organic fertilizer, application of
fertilization rate decreased through out the year, and even individual orchard
application of organic fertilizer is no longer alone, application of chemical
fertilizers to maintain production, resulting in soil compaction, decline in crop
productivity and quality. Production of organic
fertilizer in the role of crop can not be replaced. First, rich in nutrients
contained, comprehensive, and is any kind of fertilizer not available; second,
to improve the soil; Third, it helps promote soil microbial activity,
accelerating the process of soil biological, macro, is conducive to lawn, crop
and fruit trees growth and development; fourth during the decomposition of
organic fertilizers can produce large amounts of organic acids, can make some
insoluble nutrients into soluble nutrients, thereby enhancing the utilization
of soil nutrients. Therefore, we must attach importance to the application of
organic fertilizer on the crop. The amount of organic fertilizer and lawn, crop
and fruit trees generally require equal application or the times of production
facilities into.