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影响向日葵产量的因素很多,其中缺苗断垄和空壳秕粒是两个重要因素。为了夺取向日葵高产,应抓好以下几点: 一、确保全苗:春播向日葵地,前秋耕翻整地,灌冬水;当土壤解冻后耙、耱、压连续作业提墒保墒,以利全苗。另外还要根据实际情况采用抢墒旱种,掏墒深种,坐水添墒等抗早播种方法。夏种向日葵要适期趁墒播种。除此以外,种籽处理也是不可忽视的。第一,晒种:播前晒种2—3天,能加强种子内酶的活性,提高发芽势和发芽率,播后发芽快,苗齐,苗全。第二,浸
There are many factors that influence the yield of sunflower, among which the lack of seedling breaking and empty shell pellets are two important factors. In order to seize the high yield of sunflowers, should grasp the following points: First, to ensure that all seedlings: sunflower field in spring, before the autumn tillage, irrigation winter water; when the soil after thawing rake, seedling. In addition, according to the actual situation to grab drought moisture species, deep dig digging soil, water and other anti-sowing Timor sowing methods. Summer sunflowers seasons should take advantage of planting moisture. In addition, the seed treatment can not be ignored. First, the kind of sun: sun 2-3 days before sowing, can enhance the enzyme activity within the seed to improve the germination potential and germination rate, sowing germination fast, seedling Qi, Miao Quan. Second, dip