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高温伏旱期，再生稻头季稻齐穗后１５天排水，稻株冠层和２／３高处的日均温和相对湿度呈极显著负相关，收后稻桩冠层的也然。在伏旱期，稻田土壤水分随排水期提早和土层深度降低而减少。土壤干旱，有机质，ｐＨ值和全Ｎ．Ｐ．Ｋ均较有水田低。齐穗后１５天排水的茎秆绿叶数少，粒重和结实率下降，产量较低，活芽短，但早熟，稻米的蛋白质含量增加，倒５节的活芽较其他处理和对照的长；再生稻的成苗率、成穗率、活芽利用率和穗茎比低，每公顷产量近１２００千克。排水处理期间的土壤含水量平均为３４．３％。表明认真研究和制定再生稻抗旱栽培技术、对减轻干旱影响，提高再生稻的成功率，争取再生稻多收是可能的。
During the period of high temperature and drought, the first crop of ratoon rice was drained 15 days after heading, the daily average relative humidity of rice canopy and 2/3 height was extremely significant negative correlation, and the post-harvest rice pile canopy also. During the drought period, the soil moisture in paddy fields decreased with the earlier drainage period and the deeper soil depth. Soil Drought, Organic Matter, pH and Total N. P. K than paddy fields are low. After 15 days of heading, the number of stalks drained was less, the grain weight and seed setting rate decreased, the yield was lower and the number of live buds was shorter, but the content of protein was increased in early maturing stage and the buds in the last 5 days were longer than those in other treatments and controls ; Ratooning rice seedling rate, spike rate, utilization ratio of live buds and ear-stem ratio is low, nearly 1200 kg per hectare yield. Soil moisture during drainage treatment averaged 34.3%. It shows that it is possible to seriously study and formulate the drought-resistant cultivation techniques of ratooning rice, which can reduce the impact of drought, increase the success rate of ratooning rice and strive for more reclamation rice.