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一、十二月农事葡萄植株进入休眠期,本月份葡萄园中心工作是冬季修剪。 (一)冬季修剪 1.修剪前的调查:对不同田块、不同品种、不同树龄的葡萄植株进行抽样调查,调查树势强弱、枝条成熟及架面利用情况。预计明年单株的合理负载量,确定冬季修剪的留芽量(幼树密植园,架面已过密的,应考虑间伐后的植株留芽量)。留芽量计算公式如下: 每株留芽量=单株预计产量/平均穗重×结果系数×萌芽率×结果枝率×(1—损耗率) 2.修剪的轻重程度:要根据品种、树龄、树势来决定,千万不可千篇一律。一般地说,安定型的
First, December agricultural grape plants into dormancy, this month’s vineyard center work is winter pruning. (A) winter pruning 1. Pruning survey: on different plots, different varieties, different ages of grape plants to conduct a sample survey to investigate the strength of trees, branches mature and utilization of shelves. Expected next year, the rational load of a single plant to determine the amount of winter pruning buds (saplings close planting, shelves have been too close, should consider the thinning of the amount of plant shoots). The amount of retained buds is calculated as follows: Amount of shoots per plant = estimated yield per plant / average spike weight × result coefficient × germination rate × yield rate × (1-loss rate) 2. Degree of pruning: To determine the tree potential, must not be stereotyped. In general, stable