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Zhangwu County Conservation Tillage Practice and Discussion


Yan set up two kinds of treatment, 3 groups for each pilot area sampling arrangement. 1 is the traditional tillage treatments (CK), the autumn harvest with a spade plow tillage 2Oem about the same time, site preparation by disc harrow. 2 treatments is a straw chopper with a rotating light stubble (shoot with rotary depth of no more than 8em). Measuring the amount of soil erosion is BSNE sampler used, the structure shown in Figure l. Inflow of air with high wind 5em, wide-2em, to ll. Angle gradually expanded outward, so full of dust into the air once the sand box, and the speed right down, then the role of dust deposited in the collection by gravity sand box. BSNE sampler from the galvanized metal sheet, l8 and 60 mesh stainless steel screen mesh structure, of which 60 mesh used for the purpose of air exchange, l8 deposited mesh sieve to reduce the movement of soil particles. 18 air samplers schematic diagram 1BSNE Figure1SchematicdiagramofBSNEsampler Table 1 the height of layers of different treatments total amount of soil erosion and sediment yield Table1Sandtransportrateunderdifferenthigh measured during the test a high sediment load of different circumstances such as Table l. As can be seen from Table l,[link widoczny dla zalogowanych], in the sand flow,[link widoczny dla zalogowanych], sand content in the gas stream is not evenly distributed from top to bottom, the amount of soil erosion changes with height, decreasing trend; wind erosion process, soil particles mainly concentrated in the near-surface movement, suspended in soil particles in the air decreased with the increase in height, and with a high degree of relationship between the power function; wind erosion of soil particle size distribution with height increase, sand-sized particles decreases, while the increase in silt and clay content; conservation tillage Compared with conventional tillage, wind erosion decreased by 31.8% ~ 87.1%, agricultural dust by 50% to 60%, sediment yield decreased by 31.8% ~ 87.1%. 2.3 The implementation of conservation tillage, is conducive to efficiency of the section, increasing production and income proved: the implementation of conservation tillage straw only to surface treatment processes than the traditional farming less than half, high efficiency, low energy consumption, lower production costs 10 % -20%. Meanwhile, production control, conservation tillage can make wheat, corn yield 13% -17% t21, small grains yield lO%-1l%, increase income of farmers from 20% ~ 3O%. Currently,[link widoczny dla zalogowanych], conservation tillage Zhangwu has grown to 23 towns and nearly a hundred villages, to promote an area of 23300 hm (including demonstration area of 06 700 hm), the New Year the efficiency l000 million. Demonstration households cultivate the county 7446,[link widoczny dla zalogowanych], demonstration area accounts for 5.8% of corn acreage, demonstration households accounted for 7.4% of existing households. 3 to promote the work of conservation tillage Zhangwu 3.1 adhere to the Government to promote measures to strategy in the long run, beneficial to conservation tillage is a modern, power future generations of new technologies, government incentives should be developed to guide the farmers to implement conservation farming,[link widoczny dla zalogowanych], conservation tillage technologies to support research on the purchase of conservation tillage equipment to farmers for subsidies, equipment manufacturers and machine hand job services, the implementation of preferential policies. 3-2 adhere to long-term model to promote the use of various forms of agricultural sectors and channels, widely publicized creation of conducive atmosphere for the development of conservation tillage; through the establishment of conservation tillage experiment and demonstration area, and guide farmers to adopt advanced technologies; by fostering conservation tillage A typical model to improve the ability of the radiation driven demonstration households; through a multi-family zone, a village with many villages to accelerate the promotion of conservation tillage technology. Specialized households to develop agricultural, rural agricultural services, agricultural services organization teams to address the implementation of conservation tillage inorganic households every household purchase is difficult and the problem of agricultural waste of resources. Combines cross-reference practices, conservation tillage equipment and medium-sized organizations, local farmers and agricultural business operation across service organizations to achieve efficiency of the section. 3.3 adhere to the combination of agricultural machinery and agronomy will combine agricultural machinery and agronomy, exploring the development of agricultural production in the region of conservation tillage mode. Currently, a one-year maturity in the region except the more mature corn planter, the other conservation tillage equipment needed research and development or the introduction of conservation tillage to meet the needs of large scale. Gradually resolved to plant protection, efficient use of water and fertilizer, technical patterns and other key issues, the conservation tillage technology is improving daily. Conservation tillage technology in large scale, you should first solve the problem of no-till seeder and herbicides.
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