塔城地区不同覆膜模式对棉花生长及土壤墒情的影响

Effects of Different Mulching Modes on Cotton Growth and Soil Moisturein Tacheng Area Moisture Content

为研究不同覆膜宽度对棉花不同土壤深度含水量、温度、田间长势、不同时期棉花干物质及产量差异的影响。本试验设2个处理,处理1:采用超宽膜铺设,膜宽4.4 m,1膜12行棉株;处理2:采用常规膜铺设,膜宽2.02 m,1膜6行棉株。2个处理密度、株行距(66 cm+10 cm)、田间管理一致。结果表明,超宽膜棉花在20 cm、30 cm、40 cm、50 cm、60 cm土层平均含水量较常规膜棉花低;超宽膜棉花全生育期根层土壤平均温度较常规膜棉花高,超宽膜棉花平均果枝数较常规膜平均果枝数多1.43个,平均单株叶面积多747 mm^(2);超宽膜棉花在不同时期不同部位的干物质重量均高于常规膜棉花;超宽膜棉花较常规膜棉花增产39.21 kg/667 m^(2)。

In order to learn the effects of different mulching widths of ultra-wide film and conventional film on the cotton different soil depths of water content,temperature,field growth,cotton dry matter and yield differences in different periods.Two treatments were set up,treatment 1:laying with ultra-wide film,film width 4.4 m,1 film 12 rows of cotton plants;treatment 2:laying with conventional film,film width 2.02 m,1 film 6 rows of cotton plants.2 treatments were consistent in terms of density,row spacing(66 cm+10 cm)and field management.Results showed that ultra-wide film cotton in 20 cm,30 cm,40 cm,50 cm,60 cm soil layer average water content was lower than conventional film cotton;ultra-wide film cotton root layer average soil temperature during the whole life cycle was higher than conventional film cotton,ultra-wide film cotton average number of fruiting branches compared to the average number of fruiting branches of the conventional film more than 1.43,the average leaf area of a single plant was more than 747 mm^(2);ultra-wide film cotton in different parts of different periods of time,the dry matter weight of different parts of cotton in different periods was higher than that of cotton with conventional film;the yield of cotton with ultra-wide film increased by 39.21 kg/667 m^(2)compared with that of cotton with conventional film.