Composite organic modifier for preventing and controlling vegetable root root-knot nematode disease and preparing method thereof

Abstract

The invention discloses a compound organic amendment and a preparing method for controlling a vegetable root knot nematode disease which fully decomposes a colza cake and pine sawdust among three components of the colza cake, the pine sawdust and castor leaves and then dries and crushes for spare; the castor leaves after fully airing are crushed for spare. According to the weight percentage, each formulation can be prepared by uniformly mixing the pine sawdust plus the castor leaves (1:100 to 100:1) or the castor leaves plus the colza cake (1:100 to 100:1). The invention has the advantage that the effect of killing the wireworm is better than a biopesticide currently used in production. The invention can adjust the soil microflora and improve the soil and can provide more nutrition balances to plants and balance the C / N ratio of soil, thus improving the crop quality, according with the requirements for organic agriculture and having broad application prospect; the invention enhances the ventilation property (heavy soil) or moisture retention (sandy soil) of the soil and improves the efficiencies of draining water and irrigating water.

Description

technical field [0001] The invention relates to a vegetable disease control agent, in particular to a compound organic modifier for preventing and controlling vegetable root-knot nematode and a preparation method thereof. Background technique [0002] Root-knot nematode (Meloidogyne) is widely distributed all over the world, with a wide range of hosts, and severely damages plants. After the disease occurs, the yield is generally reduced by about 10%, and in severe cases, it is as high as more than 75%. At the same time, it can make fungi and bacteria easy to infect plants, which is one of the important reasons for inducing plant diseases. In recent years, with the increase of greenhouses, root-knot nematode disease has become more and more serious, which has brought serious losses to greenhouse vegetables, resulting in decreased vegetable quality, low yield, death and complete production. For the prevention and control of root-knot nematode, chemical agents have always been...

AI Technical Summary

Problems solved by technology

In recent years, with the increase of greenhouses, root-knot nematode disease has become more and more serious, which has brought serious losses to greenhouse vegetables, resulting in decreased vegetable quality, low yield, death and extinction

For the prevention and control of root-knot nematodes, chemical agents have always been the main method. Chemical nematicides not only have side effects but also easily cause environmental pollution.

There have been many reports at home and abroad on the use of organic amendments to prevent and control root-knot nematode diseases, but there is still no efficient nematicidal organic amendments in production.

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