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A technology of cassava and flower buds, applied in the field of crop cultivation, can solve the problems of less than 20% germination rate of mature seeds, immaturity, and failure to reach flowering in the year of planting, so as to prevent excessive growth of plants, preserve flower color and enhance flowering period, and the number of flowers Improved effect
Active Publication Date: 2018-08-31
GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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However, in subtropical regions, cassava generally begins to bloom in mid-September. Due to the impact of drought and low temperature, even if the fruit seeds are harvested in January to February of the following year, most of the fruit skins are still green, and the fruits are small. Half of the seeds harvested None of the above have matured normally, and the germination rate of mature seeds is less than 20%.
Moreover, some cassava varieties are not branched, and no matter whether they are planted as perennial roots or planted in the same year, they cannot achieve flowering in the year of planting. In this field, there is no literature record about inducing unbranched or branched hard-to-flower cassava to flower in the same year
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Embodiment 1
[0043] The Huanan 12 cassava variety with difficult branching and flowering was used as material to induce:
[0044] 1) Level the land, form a ridge according to a row spacing of 1.0m, and set planting holes with a row spacing of 1.0m on the ridge;
[0045] 2) According to 300kg / hm 2 Sprinkle potassium sulfate compound fertilizer in the planting holes;
[0046] 3) In the middle and late March, plant the stems of the current year in the planting holes;
[0047] 4) In the middle and late May, when the seedlings grow to a seedling height of 20cm, topdress each cassava with 0.125kg of calcium magnesium phosphate fertilizer, 0.075kg of potassium sulfate compound fertilizer and 0.25kg of organic fertilizer;
[0048] 5) After 7 days of topdressing, the whole cassava plant was sprayed with a mixed solution of 0.1% boron zinc iron magnesium calcium fertilizer + seaweed fertilizer 500 times solution + 1% sucrose prepared with clear water once, and the spraying stopped after the leaves...
Embodiment 2
[0054] Using unbranched or late branched variety Guicassava No. 6 as material, induction:
[0055] 1) Level the land, form a ridge according to a row spacing of 1.0m, and set planting holes with a row spacing of 1.0m on the ridge;
[0056] 2) According to 350kg / hm 2 Sprinkle potassium sulfate compound fertilizer in the planting holes;
[0057] 3) At the end of March, plant the stems of the current year in the planting hole;
[0058] 4) In the middle and late May, when the seedlings grow to a seedling height of 20cm, topdress each cassava with 0.125kg of calcium magnesium phosphate fertilizer, 0.075kg of potassium sulfate compound fertilizer and 0.25kg of organic fertilizer;
[0059] 5) After 7 days of topdressing, spray the whole cassava plant with a mixed solution of 0.1% boron, zinc, iron, magnesium, calcium fertilizer + seaweed fertilizer 500 times solution + 1% sucrose once prepared with clear water, and stop spraying after the leaves start dripping; spray again after an...
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Abstract
The invention provides a method for inducing flowering of cassava, belonging to the technical field of crop cultivation. The method provided by the invention comprises the following steps: 1) preparing soil, carrying out ridging, and digging planting holes on ridges; 2) applying a base fertilizer; 3) carrying out planting from the middle ten days and the last ten days of March to the first ten days of April; 4) carrying out topdressing; 5) spraying a foliage dressing fertilizer; 6) applying a flowering promoting solution; and 7) removing newly-grown branches and germinated side buds, retainingflower buds, and spraying a nutrient solution. With the method provided by the invention, flowering of annual cassava of a branching and difficultly-flowering variety can be induced by one time, wherein flowering is advanced by 2 to 4 months; the formation rate of flowers is 100%; the average number of formed flowers is increased by 5 times; and the average number of female flowers is increased by 9 times; meanwhile, flowering of annual cassava of a non-branching or late-branching variety can be induced by one time, wherein flowering is advanced by 2 to 4 months; the formation rate of flowersis 65% or above; the average number of formed flowers is increased by 4.64 times; and the average number of female flowers is increased by 7 to 8 times.
Description
technical field [0001] The invention belongs to the technical field of crop cultivation, and in particular relates to a method for inducing flowering of cassava. Background technique [0002] Cassava (Cassava) is a cassava plant in the Euphorbiaceae family. It is a shrub-like perennial crop and one of the three major potato species in the world. It is widely cultivated in tropical and subtropical regions. In the subtropical region of my country, cassava is the fifth largest crop after rice, sweet potato, sugar cane and corn. It plays an important role in crop layout, feed production, industrial application, etc., and has become a widely planted and mainly processed starch and feed crop. Cassava roots are conical, cylindrical or spindle-shaped, fleshy and rich in starch. Cassava flour is of good quality and can be used for food, or for industrial production of alcohol, fructose, glucose, etc. [0003] Existing studies have proved that cassava is a cross-pollination crop of...
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Patent Type & Authority Applications(China)
IPC IPC(8): A01G7/06A01G17/00
CPCA01G7/06A01G17/005
Inventor 陆柳英曹升严华兵谢向誉曾文丹尚小红肖亮
Owner GUANGXI ZHUANG AUTONOMOUS REGION ACAD OF AGRI SCI
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