Abstract
Applying organic matters into the soil would help to improve soil quality and sustain crop production. In addition, the small molecular organic matters could be active in influencing soil nutrient cycling and crop development. Thus, this study has firstly induced a new technology of quick artificial decomposition to produce fertilizers containing small molecular organic compounds from crop residues and other biological wastes. The fertilizers were produced via the quick artificial decomposition from biological wastes. The small organic species in the fertilizers were identified by the LC–MS. Field experiments of kiwifruit were conducted to test the effects of fertilizers. In total, 341 species of small organic matters have been determined in the produced fertilizers. The results showed that the organic fertilizers could significantly increase the yields of kiwifruit by 15.2% in contrast with mineral fertilizer treatments. Whereas, the organic fertilizers could enhance the contents of nutritive components in kiwifruits. These results proved that the organic fertilizers containing more small organic matter could be more efficient in promoting crop production.
Highlights
Applying organic matters into the soil would help to improve soil quality and sustain crop production
Increasing soil organic matter (SOM) content is commonly recommended as an efficient way to improve soil quality for sustainable agricultural p roduction[2,3]
Great molecular weight organic matters are important for soil health, small molecular organic matters could be more active in influencing soil nutrient cycling and crop development
Summary
Applying organic matters into the soil would help to improve soil quality and sustain crop production. This study has firstly induced a new technology of quick artificial decomposition to produce fertilizers containing small molecular organic compounds from crop residues and other biological wastes. 341 species of small organic matters have been determined in the produced fertilizers. The organic fertilizers could enhance the contents of nutritive components in kiwifruits. These results proved that the organic fertilizers containing more small organic matter could be more efficient in promoting crop production. Increasing soil organic matter (SOM) content is commonly recommended as an efficient way to improve soil quality for sustainable agricultural p roduction[2,3]. SOMs help to improve soil quality and crop production via various functions such as creating more macro-aggregates for soil stability[4], favoring the activities of soil microorganisms with more carbon s ources[5], and enhancing nutritive element availability for crop uptake[6,7]
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