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朝阳地区常年春旱,严重影响苹果、梨等果树的生长发育。花期干旱,往往引起花器柱头干燥,花粉生命力减弱,妨碍果树的正常授粉受精,易引起大量落花落果。为保花保果,应采取如下几项技术措施。 一、花前灌水 在果树开花前一星期进行果园灌水。平地或临近水源,可采取树盘浇水;山地及水源不方便的果园,采用穴灌。具体做法是:在树冠下挖6～10个灌水穴,穴深60厘米,上径30厘米,下径40厘米。每株树灌水3～5担,随水追施2～4斤氮素化肥。灌水
Perennial drought in the Chaoyang area, seriously affecting the apple, pear and other fruit tree growth and development. Flowering drought, often led to stigma dried flowers, pollen vitality weakened, hinder the normal fruit pollination fertilization, easy to cause a lot of flowers and deciduous fruit. To protect the flowers and fruits, should take the following technical measures. First, flowering before flowering fruit trees in the orchard irrigation a week ago. Flat or near the water, tree watering can take; inconvenient mountain or water orchard, the use of irrigation. The specific approach is: under the crown dug 6 to 10 irrigation points, hole depth 60 cm, diameter 30 cm, diameter 40 cm. Each tree irrigation 3 ~ 5 Tam, with water chase 2 ~ 4 kg of nitrogen fertilizer. Irrigation