The Research Of Irrigation Belt Emplacing On Sandland Potatoes

Drip Irrigation was recognized the most water-saving irrigation methods,drip irrigation cotton in the field of Xinjiang has been successful,if also in the field of potato cultivation success,it will greatly save water resources and significantly improve the effectiveness of the potato. Ridge irrigation is a ridge on the drip irrigation and planting technology of drip irrigation technology with a new irrigation technologies,Ridge irrigation is also an extension of cultivation techniques and deepened, drip irrigation will be applied on the ridge of potato cultivation,the key is to select the optimal set of capillary,and the current Potato drip irrigation research sabout the capillary laid is liitle,this study focused on three capillary laid under way soil moisture,temperature changes and differences in the growth and yield of water-saving.We can initial draw the following conclusions:1,A two hours drip irrigation,after irrigation within 48 hours the farthest depth of moist soil is about 40cm,the ground moist farthest distance is 35cm,10cm to 40cm depth soil moist farthest distance is 30cm; by the impact of the 50cm clay layer,below the 50cm soil layer Soil moisture has less affected by drip irrigation,and it is the original soil moisture;from the emitter 30cm far after irrigation within the same point 0cm to 40cm depth the soil moisture content changing with depth is smaller,but with the distance increasing from the emitter the soil Water content dropped rapidly after the drip irrigation with the extension of time,the fastest decline is in the surface, the decline rate is about 0.25 per 10 hours decreased.2,The soil moisture of the emitter within one capillary is intersectes after each drip irrigation,field humid phenomenon was performanced band,after irrigation the largest humid surface area of two capillary three rows reached 55 percent, the largest humid surface area of one capillary two rows and one capillary one row reached 44 percent,encountered heavy rain the soil formed by drip irrigation water distribution will be changed,and developed a uniform water distribution in the fields.3,Do the column for 5 cm,10cm,15cm,20cm,25cm five soil layer's temperature,the temperature is a "V" font changes as early as 8:00,the temperature is showed a downward line changes as early as 14:00,the temperature is a against"V" font changes as early as 20:00;0cm to 25cm layer's temperature changes have no differences between the three capillary laid manner within 8:00 to 20:00,0cm to 25cm solil temperature of two capillary three rows is slightly lower than the other two dealts.4,The potato growth of one capillary one row is the best,the potato growth of a capillary two rows and two capillaries three rows have no significant difference. By 50cm potato plants section of the root excavation observation we get that: a total weight of dry roots matter one capillary one row> a capillary two rows > two capillaries three rows,most of the root is distributed in 0cm to 50cm depth,the most intensive of roots within the layer of 20cm to 30cm,root following a rapid decline under 50cm layer,there is non-root distribution below 70cm layer basicly.5,The potato single plant yield of one capillary one row is higher than the other two dealts,but because of relatively low density planting,the per-mu yield lower than the other two dealts. while the per plant yield of two capillaries three rows is a party 88 percent of one capillary one row,but the count of per mu cultivation is 1.73 times to one capillary one row,and the per-mu yield increased 100 percent,the value rate of potato is basically the same. Water-saving effect of two capillaries three rows is significantly,water-saving effect two capillaries three rows better than one capillary two rows. The economic benefits:Two capillaries three rows > One capillary one row > One capillary two rows.