Study On The Cultivation Technology And Popularization Of Demonstration For Xinhai-22 Variety Of Especial Prematurity Long-Staple Cotton (Gossypium. Barbadense L.)

In order to improve the quality of cotton fiber, enrich the structure of cotton fiber, improve the quality of textiles, abroad to break trade barriers, promote the agricultural structure adjustment, build brands of cotton in north Xinjiang, and strong the economy and bring benefit to farm workers in Xinjiang production and construction group. By making use of sunshine and heart resource and high-level intensive and mechanic of agriculture in north Xinjiang, early-maturity long-staple cotton Xinhai-22 were selected to demonstrated and popularized and that ecological adaptability were studied in this area. we choose representative areas to set up test sites in mainly reclamation area of planting cotton in northern Xinjiang. At first, selecting representative legion farm areas in 5th, 6th, 7th, and 8th agricultural division as mainly test points, Xinluzao-13 as blank, multi-year and multi-spot tests have been taken. There had no repeats in comparison arrangement in this tests, the planting density was 225,000 to 240,000/ha, and the field managements were same as common way in local. The seed cotton yield in test plots has been tested. 100 opening bolls have been selected in top, middle, and bottom in plant, respectively, for plant laboratory testing. 30 g cotton fiber has been send to Cotton Quality Supervision and Inspection Testing Center of Agriculture Ministry for testing the quality of cotton fiber. And the meteorological data have been collected. Through relative analysis, we have studied ecology compatibility of super early-maturity long-staple cotton Xinhai-22 in early-maturity cotton regions of northern Xinjiang, and selected five fitting reclamation area in, Fangcaohu reclamation area, Chepaizi reclamation area, Xiayedi reclamation area, Anjihai reclamation area, and Mosuowan reclamation area, respectively. Secondly, one-year and multi-spot tests have been taken with 3 repeats, 3 planting densities, 3 amounts of DPC , respectively, for studying planting density and plant height. The amount of base fertilizer, the amount and times of irrigation, the amount of fertility throughout the growth period, and the method of field pests control were same as common way in local. The field agronomic characters have been investigated in fixed-point in fixed-hour. The seed cotton yield in test plots has been tested. 50 opening bolls have been selected for plant laboratory testing and cotton fiber quality testing. Though investigating the cotton field agronomic characters with different planting densities, and yield testing, basing on the result of field investigating, the fitting analyzing with the result of plots tests surveyed that the suitable planting density of Xinhai-22 in drip irrigation cotton regions of northern Xinjiang was 225,000/ha, and the amount of DPC was 120g/ha. At last, the high-yield cultivation and techniques of Xinhai-22 in early-maturity cotton regions of northern Xinjiang was established by combining the theory of high-yield cultivation and techniques of long-staple cotton in south Xingjiang and high-yield cultivation and techniques of cotton in north Xingjiang, and the result of one-year and multi-spot tests. Which have been demonstrated and popularized.In 2005 produced Xinhai-22 seed 100t, demonstrated and planted 333.3 ha in north Xinjiang. In 2006, Xinhai-22 has been demonstrated and planted 666.7 ha in all in 121st legion, Xinhu farm, Fangcaohu farm, 150th legion, 149th legion and Xinjiang Academy of Agriculture and Cultivation Sciences planting base. 100t original stocks seed have been produced, the average Gineed cotton yield was 1275 kg/ha, pre-frost yield was 95% approximately, the amount of long-staple cotton was 850t, compared with the same amount of upland cotton the newly increased output value and profit was 7233000Yuan and 3431700 Yuan, respectively.Through this study, the fitting reclamation area and high-yield cultivation and techniques in early-maturity cotton regions of northern Xinjiang for planting super early-maturity long-staple cotton Xinhai-22 was selected, and which have been popularized and planted. It has made up the blank of planting long-staple cotton in early-maturity cotton regions of northern Xinjiang. Through zoning of ecological region, the resources of land, and sunshine and heat could be used wealthy. Exploiting the property of varieties, establishing the higher quality, efficiency, and yield cultivation technique of cotton in Xinjiang, could give basis for rational distributing of Xinhai-22, and give basis for reasonable selecting cotton varieties with the natural resources and condition of cotton producing departments in northern Xinjiang, too. Which have not only extended the long-staple cotton planting area, and increased the economic benefit and income of workers in legions, but also had important effect for improving the quality of cotton fiber, enriching the structure of cotton fiber, and optimizing agricultural structure cotton regions of northern Xinjiang.