Effect Of Vegetables Residual Body On Processing Tomato Of Nursery Continuous Cropping

1 Seeds germination and soil culture experiments of processed tomatoes were studied by using liquoring leaching of roots, stems and leaves of themselves. The result shows that the liquoring leaching of roots, stems and leaves has autointoxication to themselves'seeds germination. High density(density>1:75) liquoring leaching of roots, stems and leaves has strong inhibition to themselves'germination rate, germination vigor, germination index, seedling height, root length and root / shoot ratio ,but the lower density have some promotion to seeds'germination and seedling growth. Moreover the effect to seeds'germination and seedling growth was changed if the density of liquoring leaching were changed.2 The effect of three varieties vegetables residues liquoring leaching on processed tomatoes seeds germination and plant's enzyme activities. The results displayed that seeds germination were inhibited by high density of liquoring leaching of three varieties vegetables residues but promoted by low density, and the effect on seedling growth is different from the former. The Welsh onion liquoring leaching has the best effects on processed tomatoes root grew. Low density promoted the aerial parts of processed tomatoes'growing and high density inhibited it. Liquoring leaching of onion and Chinese cabbage promoted the aerial parts of processed tomatoes'growing but inhibiting the root growing. At the same time the effect of Chinese cabbage liquoring leaching is the best. All of the processed tomatoes'seedling fresh weight and dry weight increased along with the increasing of liquoring leaching, maybe the effect has relation with nutrient of the liquoring leaching.3 The effect of three varieties vegetables residues liquoring leaching on physiological nature of processed tomatoes. The result shows that Welsh onion and onion liquoring leaching had reasonable promoting effective to root vigour of processed tomatoes. The four kinds of liquoring leaching have reasonable promoting effective to SOD activity at seeding stage of processed tomatoes. But the effects on flowering stage and fruiting stage are different. The liquoring leaching of Chinese cabbage and radish has better effect on CAT activity of processed tomatoes than Welsh onion and onion liquoring leaching. Even welsh onion and onion liquoring leaching inhibited the CAT activity. Welsh onion and onion liquoring leaching have strong inhibiting effective to POD activity of seeding stage processed tomatoes. Chinese cabbage liquoring leaching have some promoting effective to POD activity of seeding stage processed tomatoes, but at flowering stage and fruiting stage the effects changed. Radish liquoring leaching had best promoting effective all the time, and the effect increased along with the increasing of liquoring leaching. Low density of liquoring leaching promoted MDA at seeding stage and inhibited MDA at flowering stage and fruiting stage. High density of it inhibited MDA at seeding stage and promoted MDA at flowering stage and fruiting stage. All of the liquoring leaching have inhabiting effect on composition of chlorophyll A and chlorophyll B at seeding stage but have fewer effect on flowering stage and fruiting stage, even have reasonable promote effective.4 The effect of three varieties vegetables residues liquoring leaching on microorganism quantity of processed tomatoes in soils. The result shows that the liquoring leaching of Chinese cabbage and radish have favourable promoting effective to bacteria, fungi, actinomyceteses and ammonifiers, and high density is better than lower, what's more radish liquoring leaching have reasonable promoting effective to Aerophilic nitrogenfixing bacteria,Anaerobic cellulose-decomposing bacteria and Aerophilic cellulose-decomposing bacteria, but Chinese cabbage liquoring leaching inhibited the three microorganisms, the two liquoring leaching have promoting effect on the amount of microorganism. Welsh onion and onion liquoring leaching have inhibiting effective to bacteria, fungi and ammonifiers, but have promoting effective to actinomyceteses, anaerobic cellulose-decomposing bacteria and Aerophilic cellulose -decomposing bacteria. Welsh onion liquoring leaching promote Aerophilic nitrogenfixing bacteria, but onion liquoring leaching are not..