论文部分内容阅读
试验设置深松条件下灌水3次和4次(SI3和SI4)两个处理,以常规浅旋耕灌水3次和4次(RI3和RI4)为对照,研究深松及灌水次数对超高产春玉米生育期耗水规律、灌浆特性及产量的影响。结果表明,与常规浅旋耕相比较,深松处理可显著改善40~100 cm深层土壤水分条件,为深层根系的水分吸收提供保障,促进春玉米生长发育。深松处理较浅旋耕处理生产单位玉米平均节水量为0.149 m~3/kg,节水6.66%,单位耗水量增产量为0.322 kg/m~3,增产7.17%。相同灌水次数条件下,深松处理显著提高春玉米产量构成因素,增产达12.47%。
The experiment was conducted under the conditions of subsoiling irrigation three times and four times (SI3 and SI4) two treatments, with conventional shallow plowing irrigating three times and four times (RI3 and RI4) as a control, to study the subsoiling and irrigation times to ultra-high yield spring Effect of Water Consumption, Grouting Characteristics and Yield of Corn during Its Growth Period. The results showed that subsoiling treatment could significantly improve the soil moisture conditions at the depth of 40-100 cm compared with that of conventional shallow rotary tillage, so as to provide guarantee for water absorption of deep roots and promote the growth and development of spring maize. The average water saving rate of corn with the treatment of subsoiling rotary tillage was 0.149 m 3 / kg, water saving was 6.66%, unit water consumption increased by 0.322 kg / m 3, increased by 7.17%. Under the condition of the same irrigation times, the subsoiling treatment significantly increased the yield components of spring maize and increased the yield by 12.47%.