Special bio-organic fertilizer for lotus root planting

Abstract

The invention provides special bio-organic fertilizer for lotus root planting. The lotus root is an economical crop with a high nutritive value, however, the lotus root rhizome rot is frequently caused due to continuous cropping and mainly happens to a subterraneous stem and roots of the lotus root, thereby causing yellowing, browning and rotting of leaves of the overground part, even withering of the overground part; the initial symptoms of the subterraneous stem are not remarkable, a vascular bundle in the center can be found browning when cut, the browning part gradually expands to a newly grown subterraneous stem, and rotting and blacking of the subterraneous stem are even caused; the leaves of the overground part then have the symptoms, the leaf color fades, the leaves are dried up and curled, and even leaves of the whole field get withered and yellow as if burnt by fire; the subterraneous stem of the diseased or infected plant has hyphae and pink viscous substances, and part of the stem has water-soaking scab; finally, stolon, diseased stems and diseased root parts all have purple brown scab, the stolon gets brown inside, the diseased stem longitudinally shrinks, and the lotus root necrotizes; and the part firstly infected by the lotus root rhizome rot is in an aquatic environment, and the disease cannot be easily found and is difficult to control.

Description

technical field [0001] The invention relates to the technical field of compound fertilizers, in particular to a compound fertilizer made from molasses alcohol waste mash. Background technique [0002] The lotus root rot disease mainly occurs in the underground stems and roots of the lotus root, causing the aboveground leaves to turn yellow, brown and rot, and even cause the aboveground parts to wither. The initial symptoms of the rhizomes are not obvious, but the vascular bundle near the center can be seen to turn brown when cut open, and gradually expand and extend to the new rhizomes, even causing the rhizomes to rot and turn black. The leaves above the ground will also appear sick, and the leaf color will become pale, dry, and curled, and even the whole field will be yellow and burnt. Hyphae and pink viscous substances appeared on the underground stems of the diseased plants, and some of them showed water-soaked lesions. Finally, the lotus whip, the diseased stem and th...

AI Technical Summary

Problems solved by technology

However, in the case of not changing the variety of lotus root and continuous cropping, there is no technical plan to ensure that the lotus root rot does not occur. After the fungicide has been used to kill the spoilage bacteria in the farmland, after the toxicity of the fungicide subsides, the chance of the spoilage bacteria reappearing is very high.

Moreover, the use of fungicides for years will cause pathogenic bacteria to develop drug resistance and drug resistance, resulting in a decline in the bactericidal effect year by year.

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