"Shuangyou Shuangzhuo" refers to the use of fine varieties and throwing cultivation in rice in the early and late seasons. In 1999, Changhe Town, Binjiang District, Hangzhou City, promoted a total area of ​​1,339 mu (including 623 mu of early rice and 716 mu of late rice) with an average yield of 465.45 kg (434.7 kg of early rice and 492.2 kg of late rice). Hand-planting (the same below) 1746 mu (including 819 mu of early rice, 927 mu of late rice), 432.55 kg per mu (397.4 kg of early rice, 463.6 kg of late rice), an increase of 32.9 kg, an increase of 7.6%. Total increase of 44,000 kilograms of rice (32.9 kilograms per mu), a value of 50,900 yuan, and an increase of 38 yuan per mu. Shuangyou Shuangzhuo not only increases production value, but also saves labor costs and fertilizer costs. The town has increased production, saved costs, and increased efficiency by 233,300 yuan due to the promotion of Shuangyou double-throwing cultivation techniques, and has averaged 174 yuan per mu. Its main technical experience is: First, select high-yield and anti-dropping varieties. In view of the fact that rice seedling cultivation is rooted shallowly and the fall seedlings are more objective than the foot, the varieties require large spikes and grains, medium tillers, and dwarf resistance. To this end, the early rice selected "Jiazai 935" and "Jiayu 948" as the main; continuous cropping of late rice was mainly based on "Xiushui 63" and "C 95-503". Second, bred good and strong six. First of all, choose a land with high topography and convenient irrigation and drainage to do semi-dry ventilation.秧 务 务 务 务 务 务 é¢ é¢ é¢ é¢ é¢ é¢ é¢ é¢ é¢ é¢ é¢ é¢ é¢. Followed by the spread of 30 kg of rice husks for every 30 square meters of rice glutinous rice seedlings 1.5 kg (1 package, produced by Jiangshan Xingong Compound Fertilizer Plant), directly applied to fattening on the sash. Thirdly, after the plastic discs are laid out, fill them with thin mud and clean the plate. When the mud is settled to “eight full minutesâ€, each plate is sown with 100 grams of buds with a root bud length of about 0.5 cm. The fourth is to swipe the valley with a soft broom after sowing so that the disc does not leave (leak) seeds. Early rice seedlings are covered with mulch and low-shedding; late rice is covered with long straw or shade nets or sawdust, and is protected from high-temperature scalding and thunderstorms. The fifth is in the water slurry management, the rice dry tube seedlings, promote seedlings handsome and dwarf. The sixth is when the age of early rice is about 25 days, the average leaf age is 4.56 leaves and the late rice age is about 22 days, and the average leaf age is 4.6 leaves. Third, Daejeong throws technical points. The dumping of Daejeon is to cultivate the current situation. The field surface should be as flat as possible to maintain the thin-skinned water layer. Early rice planted an average of 82.5 acres of planting, falling field seedlings about 120,000; late rice acres average throwing plant 87.4, falling field seedlings 140,000. The number of seedlings is the basis for production. In order to throw enough to throw the seedlings into the field, throw two-thirds of the seedlings into the entire field, then use one-third of the seedlings to fill the vacancies and sparse sites, and reach the foot and seedlings evenly and throw evenly. After the seedlings return to green, the stacking seedlings are immediately deleted, and the rare and missing parts are filled in, and a good operation path is left to dig a good production channel. The total proportion of top-dressing fertilizer applied to field crops was adjusted from 8:2 for transplanted rice to 6.5:3.5 to focus on the application of panicle fertilizer. Fourth, in addition to net weeds, ahead of the field. In addition to net rice dumping weeds in Daejeon, it is one of the important measures to seize high yields. Our approach is: Combine the application of tiller fertilizer, select "Ding benzyl" or "Cerbium" and other safe counterpart herbicide chemical weeding. When the tiller reaches the 70-80% of the predetermined number of seedlings, advance the holding of the field: Repeatedly put lightly, control the invalid tillering, and increase the rate of tilling tillage. Maintain wet irrigation after heading, maintain root vitality, prevent lodging, prevent premature decline, and achieve high yields.