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综合各项试验示范结果:证明使用经稀释1000—2000倍黄腐酸钠增效剂与1200倍退菌特配伍(含量40—50％),在苹果生长中、后期即7月上旬至8月上旬喷洒1～2次,对防治为害严重的轮纹病和斑点落叶病有明显的增效作用。可较单施700—800倍退菌特提高50—80％,病果率生长期可控制在5％以下,采后一个月病果率可压低在10％以下。化学农药的使用,在防治农林病虫害和夺取丰收方面使人类获得重大经济效益,但随着农药的广泛使用,人畜中毒和农药残毒使土壤水质污染问题也日益突出,直接或间接为害人类健康及生态平衡,为了减少这种为害,就使农药缓释增效的物质研究也应运而生。黄腐酸(FA)或其钠盐与多种农药混合使用后还能提高作物的产量和品质而倍受欢迎。果品是直接入口的食物,FA在果树上的应用意义更大,而这方面的试验研究尚未见报导。对为害严重防治难度较大的苹果轮纹病和斑点落叶病,如能用FA提高农药防效对拓宽FA对农药增效的应用范围和提高防治效果都有重要意义。为此,我们在1986—1989年间采用室内和异地间试验相结合,试验和示范推广相结合,进行了用FA或其钠盐增效农药防治果树病害的试验和示范,确定了较佳的应用技术,取得了较为满意的效果。
Comprehensive demonstration of the results of the experiment: the use of diluted 1000-2000 times the fulvic sodium synergist and 1200 times the antibacterial compatibility (content of 40-50%), in apple growth, the latter part of early July to August Early spraying 1 or 2 times, the prevention and treatment of serious rot disease and spotted leaf deciduous obvious synergy. It can be increased by 50-80% compared with 700-800 times of single-dehumidification, and the rate of disease-fruit growth can be controlled below 5% in one growth period. The incidence of disease in one month after harvest can be reduced below 10%. The use of chemical pesticides in the prevention and control of pests and diseases of agriculture and forestry and the harvest of mankind to obtain significant economic benefits to mankind, but with the widespread use of pesticides, human and animal poisoning and pesticide residues of soil water pollution problems have become increasingly prominent, directly or indirectly for human health and ecology Balance, in order to reduce this damage, make the matter of sustained release and efficiency of pesticide research also came into being. Fulvic acid (FA) or its sodium salt and a variety of pesticides used in combination can increase crop yield and quality and welcome. Fruits are imported directly, and FA is more useful in fruit trees. However, experimental studies in this area have not been reported yet. It is of great significance to use FA to improve the pesticide efficacy and broaden the application range of FA and improve the control effect of apple rot disease and speckle leaf disease, which are more difficult to control. To this end, we used in 1986-1989 indoor and off-site experiments combined with the combination of pilot and demonstration to promote the use of FA or its sodium salt pesticides to combat fruit disease control test and demonstration to determine the application of the better Technology, made more satisfactory results.