A Remedial Method for Potato Seedling Frost Damage
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A potato and frost damage technology, which is applied in the field of crop cultivation, can solve the problems of reduced production and commodity rate, and achieve the effects of increasing yield, restoring growth and increasing income
Inactive Publication Date: 2016-06-29
云南省农业科学院经济作物研究所
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This method can effectively solve the problems of reduced production and low commodity rate caused by frost damage in the seedling stage of potatoes in winter, big spring (including small spring) or special years. Its technical scheme is as follows:
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Embodiment 1
[0016] In the spring of 2011, the Economic Crop Research Institute of Yunnan Academy of Agricultural Sciences carried out the expansion of potato seed potatoes in the spring season at the potato G1 seed potato breeding base in Yema Village, Huize County, Yunnan Province. The semi-mechanized method was used to plant clouds on March 15-25. The potato 301G1 generation is planted with 500 acres and no irrigation conditions. On May 18, the seed potato breeding field encountered frost damage. At that time, the potato was in the seedling stage. The total area affected was 460 mu, which accounted for 92.0% of the planted area. Among them, the affected area of Yunshu 301 is 118 mu, 1 / 2 of the potato plant leaves are dead, and 60% of the plant top buds are necrotic. The method of the present invention is used to timely remedy the potato after frost damage.
[0017] Specific operation:
[0018] (1) After the frost damage, cultivate the soil in time, topdressing once before the soil, topdre...
Embodiment 2
[0033] Cooperate in field production and planting of potatoes in the 88 Xiaochun.
[0034] In the early spring of 2012, three growers including Yang Benxue, Qianwei Town, Jiangchuan County, Yunnan Province, planted potato cooperative 88, with a total planting area of 126 mu, with irrigation conditions. The seeds were sown from January 3 to 10, and on February 27, the potato was in the seedling stage. The potato was affected by frost damage to 94 mu, and the affected area accounted for 74.6% of the planting area. After investigation, 1 / 3 of the potato plant leaves are dead, and 50% of the top buds of the plant are necrotic. The following measures of the present invention are used to remedy:
[0035] (1) After the frost damage, cultivate the soil in time, topdressing once before the soil, and topdressing 10㎏ / mu of urea with 46.0% mass fraction of N. At the same time, spray the mixture A70㎏ / mu once per mu, and spray evenly on the injured plants. Mixture A is composed of gibberelli...
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Abstract
The invention discloses a remedying method of frostbitten potatoes at the seedling stage. The remedying method is characterized in that the frostbitten area of the potatoes at the seedling stage is above 50 percent, leaves of 1 / 3-1 / 2 of plants are dry, and terminal buds of 50-60 percent of plants are necrotic. The remedying method comprises the following steps: 1, inter-cultivating and hilling after the potatoes are frostbitten, topdressing 8-10 kg / mu of urea containing 46.0 percent of N for one time before hilling, and meanwhile spraying 60-70 kg of mixed liquid of 4-5 mg / L gibberellin, 0.5 g / L of urea and 1 g / L of monopotassium phosphate per mu; 2, after one week, spraying 60-70 kg of mixed liquid of 8-10 mg / L gibberellin, 1.0 g / L of urea and 2 g / L of monopotassium phosphate per mu. The remedying method has the benefits that the growth of the frostbitten potatoes can be restored as soon as possible, the per unit yield is improved, the yield is increased by 70-80 percent, the income is increased by 142-284 percent, the income of growers is increased, and the potato yield in a seed potato production field is improved by 13-27 percent; therefore, the remedying method has great significance in the propagation of seed potatoes.
Description
Technical field [0001] The invention belongs to the technical field of crop cultivation. Specifically, it relates to a crop cultivation method, which mainly solves the problem of adopting a simple and feasible remedial technical measure after the potato seedling stage is frost-damaged, so that it can restore growth and increase the yield. technical background [0002] Potatoes are the largest non-grain food in the world. China is the world's largest potato producer, and Yunnan's potato planting area ranks fourth in the country. According to statistics, the potato planting area in Yunnan currently reaches 9.883 million mu, with an annual output of more than 10.6 million tons of fresh potatoes and an annual processing output value of 1.5 billion yuan. Due to the diversity of Yunnan’s geography, climate and other conditions, potatoes can be grown all year round. However, potato production in winter, early spring and some areas often encounters frost damage, especially when potatoe...
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