Non-nuclear orange quality and high yield five new tricks

First, the fertilizer was added before the supplement. Early re-application of wax. In early January, 5000 kg of chicken manure per acre, 150 kg of ammonium bicarbonate and ternary compound fertilizer, and 50 kg of potassium sulfate were applied. In the bud differentiation stage in early May, the leaves were sprayed with borax, potassium dihydrogen phosphate solution and a small amount of urea solution. From flowering to full flowering, foliar penicillin solution is used to supplement the foliage. The late application of three yuan compound fertilizer per acre 150 kg, 50 kg of urea, 25 kg of potassium sulfate for fruit, strong fruit fertilizer. Second, prevention and treatment of diseases and insect pests control peaks. The principles of prevention and control of citrus pests and diseases should be followed. After the temperature rose in the spring, the locusts started to use omethoate and carbendazim to prevent and control, middle and late use of high-efficiency and low-toxicity pesticides, can also be combined with foliar dressings. 2001 was the year of flower buds and red spiders. The first generation of flower buds was controlled and used on April 15 to control the peaks of insects. In mid-June to mid-July, due to continuous high temperatures, spider mites were mainly contaminated with red spiders. The use of fast killing spirit plus broom and spirit contact with dichlorvos dichlorvos alternate prevention and treatment. Third, antifreeze measures should be grasped as early as possible. After entering the winter, the trunk of the orange tree was first coated with lime sulfur and lime, and then the trunk was wrapped with straw. Before the advent of the cold winter, 2,000 kg of dry straw were planted per mu to increase the temperature, prevent weed growth, and increase soil fertility. In the first and second quarter of January of the following year, antifreeze was sprayed on each leaf surface to protect the leaves from freezing damage. Fourth, keep a good tree shape. Fine and timely picking summer shoots, early autumn shoots and late autumn shoots. In the later period of fruit setting, use bamboo sticks to tie the fruit branches, make good support, and maintain a good tree structure. Fifth, spray sour sweetener. In mid-August to early September, the mixture of 0.2% concentration of white sugar, 0.3% concentration of potassium dihydrogen phosphate, and 0.4% concentration of urea solution is sprayed on every 7-10 days to increase the content of tangerine. The sweetness and quality promote fruit ripening.