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解放以来,由于历年推广良种,增加密度,加强治虫以及水、肥、土等栽培条件的逐步改善,芮鈴脫落減少,产量显著提高。特別是1959年,在全国繼績大跃进形势下,陝西省棉花生产又获得了大丰收。但是,目前芮鈴脫落率仍在60～70％左右,严重的竟达70％以上,高产棉田的脫落率也在30％以上。自毛主席于1958年在山东視察吋指示“你們要研究一下为什么落桃的問题,是否可以研究个办法,叫它少落或不落”以后,引起了棉花科学工作者和广大棉农的极大重視。因此,我們自1959年起,所有选种、栽培、植保、土肥等試验,高額丰产田,以及大面积丰产經验的調查,都围绕着如何防止芮鈴脫落的問题进行研究。为使研
Since the liberation, due to the promotion of improved varieties over the years, increasing density, strengthening pest control and water, fertilizer, soil and other cultivation conditions gradually improve, Ruiling shedding reduced output significantly increased. Especially in 1959, following the great leap forward in the country, the cotton harvest in Shaanxi Province gained another bumper harvest. However, the current Rui Ling shedding rate is still about 60 ~ 70%, as high as 70% or more, the high yield of cotton shedding rate of 30% or more. Since Mao Tse-tung inspected Shandong Province in 1958, he pointed out that “if you want to study why the problem of falling peaches can be solved by studying whether it will fall or not,” it has caused great scouts of cotton scientists and vast cotton farmers. Pay attention. Therefore, since 1959, we have conducted studies on how to prevent the detachment of Ruiling from all surveys on selection, cultivation, plant protection, soil fertility, high-yielding fields and large-scale high-yielding experiences. To make research