花生开花下针期是花生生长发育最旺盛期,此时叶面积大,茎叶生长最快,同时大量花针下扎形成荚果。加之这个阶段株体大、气温高、土壤蒸发量大、叶片蒸腾量大,因而是花生一生中需水量最多的时期,掌握时间,科学浇水,是夺取花生高产的关键。据研究,花生开花下针期土壤水分低于最大 Peanut blossom needle is the peanut growth and development of the most prosperous period, when leaf area is large, the fastest growth stems and leaves, while a large number of flower pin under the formation of pods. In addition, in this stage, the plant body is big, the temperature is high, the soil evaporation is large, and the leaf transpiration is large. Therefore, it is the period with the most water demand in peanut life. Mastering the time and scientific watering are the key to the high yield of peanut. According to the study, peanut flowering under the needle below the maximum soil moisture