全生物降解地膜覆盖对旱地土壤水分状况及春小麦产量和水分利用效率的影响

马明生, 郭贤仕, 柳燕兰

Effects of full biodegradable film on soil water status and yield and water use efficiency of spring wheat in dryland

Ming-Sheng MA, Xian-Shi GUO, Yan-Lan LIU

表2 不同覆盖方式对小麦干物质积累量的影响

Table 2 Effects of different mulching methods on dry matter accumulation amount in wheat (kg hm-2)

年份 Year 处理 Treatment 苗期 Seedling stage 拔节期 Jointing stage 开花期 Flowering stage 灌浆期 Filling stage 成熟期 Harvest stage 2015 PM 715.34±17.46 a 2419.64±49.81 a 8536.79±360.22 a 10,831.42±353.42 a 13,352.46±112.29 a BM 715.70±16.73 a 2400.43±49.26 a 7817.33±201.88 b 10,181.77±234.18 b 13,016.89±240.55 a CK 372.81±23.88 b 1348.36±64.35 b 5680.53±240.74 c 7378.32±168.80 c 9407.36±362.83 b 2016 PM 636.83±17.64 a 2224.34±40.13 a 6614.18±358.13 a 8010.77±280.65 a 9245.20±200.45 a BM 604.81±23.90 a 2100.04±38.16 a 6095.94±149.56 a 7554.98±224.34 a 8923.56±204.47 a CK 256.35±8.26 b 991.66±20.79 b 3452.83±213.48 b 4644.62±161.13 b 5555.33±133.42 b 2017 PM 634.50±22.51 a 2161.35±24.82 a 6477.30±255.34 a 7757.10±203.48 a 8737.20±305.88 a BM 599.20±13.83 a 2093.15±38.20 a 6011.03±282.00 a 7445.32±248.55 a 8588.15±338.93 a CK 229.88±13.03 b 960.15±18.50 b 3426.11±65.74 b 4609.17±108.12 b 5390.52±65.49 b 2018 PM 713.28±15.43 a 2367.98±54.73 a 7800.72±340.54 a 9954.30±106.05 a 11,931.96±122.35 a BM 708.12±23.53 a 2298.66±37.78 a 6891.86±167.84 b 9545.95±287.88 a 11,379.39±208.22 a CK 349.71±19.60 b 1279.72±43.93 b 5371.23±104.23 c 7067.28±65.74 b 8104.89±415.20 b