Method for inducing blooming of cassava

A cassava and local technology, applied in fertilization methods, gardening methods, botanical equipment and methods, etc., can solve the problem of inability to achieve flowering in the same year, and achieve the effects of preventing dispersion and absorption, preventing excess nutrients, and promoting flowering.

Inactive Publication Date: 2020-10-30

SOUTH ASIAN TROPICAL AGRI SCI RES INST OF GUANGXI

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AI-Extracted Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the prior art, the present invention provides a method for inducing cassava to flower, so ...

Method used

Cassava seed stems are planted at the end of February and the beginning of March every year in advance, and the environment at the end of February and the beginning of March can reduce the evaporation of soil moisture, keep the soil moist and loose, and can promote early germination and early growth of cassava, thereby inducing cassava to bloom, so that It is beneficial to the growth of cassava and the expansion of tubers, increasing the yield by more than 30%.

Cassava seed stems are planted at the end of February and the beginning of March every year in advance, and the environment at the end of February and the beginning of March can reduce the evaporation of soil moisture, keep the soil moist and loose, can promote early germination and early growth of cassava, thereby inducing cassava to bloom, so that It is beneficial to the growth of cassava and t...

Abstract

The invention discloses a method for inducing blooming of cassava and relates to the technical field of plant of the cassava. The method comprises the following steps: S1. selection of cassava planting land: selecting a place, which is little in water accumulation and gravels and is infrequently attacked by strong wind, from border districts of tropical and subtropical zones, and cultivating the cassava; S2. land preparation of the cassava planting land: carrying out ridging according to row spacing of 1.0m-1.2m, and forming planting holes, of which plant-row spacing may be 1m*1m, in ridges; and S3. improvement on the cassava planting land: applying a basal fertilizer to the land subjected to land preparation in a mulching film cultivated manner. According to the method for inducing the blooming of the cassava, reasonable blooming promoting measures are adopted at each stage of the cassava, and reasonable and targeted fertilizing is performed at each state, so that hypernutrition is prevented; and cassava tubers are subjected to blooming induction, and meanwhile, superfluous axillary buds and branches are removed, so that nutrients are prevented from disperse absorption, and thus,the blooming of the cassava is promoted.

Application Domain

Fertilising methodsRoot crop cultivation +1

Technology Topic

NutrientAxillary bud +4

Examples

Experimental program(2)

Example Embodiment

[0022] Example one:

[0023] A method for inducing flowering of cassava, including the following steps:

[0024] S1. Choose the cassava planting area, choose tropical and subtropical marginal areas, choose places with less water, less gravel, and not often hit by high winds to cultivate cassava;

[0025] S2. Carry out land preparation on the cassava planting land, ridging according to the row spacing of 1.0-1.2 meters, and setting the planting hole with the planting hole in the range of 1 meter * 1 meter on the ridge;

[0026] When preparing the soil, deep plough the soil 30 cm, deep ploughing and harrowing are carried out by machine tillage, and at the same time, the method of thickening the soil layer is also used.

[0027] S3. Improve the planting land of cassava, and apply basal fertilizer to the land completed by site preparation by using plastic film cultivation;

[0028] On the well-prepared land, start the border according to the row spacing, apply the required fertilizer to the middle of the border and mix well with the soil at one time. Generally, 500-750 kg farmyard manure, 25 kg compound fertilizer, 20 kg nitrogen fertilizer and 25 kg potash fertilizer are applied per mu. Phosphate fertilizer is 25 kg, the border surface is covered with a 1-meter-wide mulch, the mulch is compacted with soil, and then the cassava stems are inserted into both sides of the border mulch according to the plant spacing, and the stems are exposed 3-5 cm from the ground.

[0029] S4. Select the cassava seed stems, choose the middle and lower part of the cassava main stem that is free of diseases and insects, has milk in the cut, is not damaged, fully matured, fresh, intact buds, thick and dense stems, and select Seed stems are processed;

[0030] Cut the selected seed stems before planting. After the selected seed stems, cut them into stem segments, with a length of about 10-15cm. When cutting the seed stems, pay attention to keeping the buds intact and free of cracks. , The cut is smooth.

[0031] S5. Plant the selected cassava seed stems. The planting method adopts the horizontal laying method or the oblique cutting method, and the planting density is 600-800 plants/mu;

[0032] Cassava seed stems are planted in advance at the end of February and early March each year. The environment at the end of February and early March can reduce soil moisture evaporation, keep the soil moist and loose, and promote early germination and growth of cassava, thereby inducing cassava flowering, which is beneficial to cassava The growth and roots are large and the yield can be increased by more than 30%.

[0033] S6. Topdressing cassava to induce flowering of cassava. The time for topdressing is 40-60 days after planting. Phosphate fertilizer and potassium fertilizer are applied per mu of cassava land to promote flowering of cassava;

[0034] The phosphate fertilizer is calcium-magnesium phosphate fertilizer, and it is evenly spread on the planting land according to 30-50kg per mu. The potassium fertilizer is potassium dihydrogen phosphate. The potassium dihydrogen phosphate solution accounts for 1% of the mass of potassium dihydrogen phosphate. Spray 2-3 times.

[0035] When protecting flower buds, other axillary buds should be removed in time, and only flower buds should be left. At the same time, new branches should be removed to induce cassava to bloom.

[0036] S7. After top dressing, the flower is promoted and the flower is preserved, and the flower-promoting fertilizer is used. The flower-promoting fertilizer adopts the root application method, and the N+P in the flower fertilizer is promoted 2 O 5 +K 2 The mass percentage of O ≥5%, the mass percentage of trace elements ≥10%, and the mass percentage of organic matter ≥15%;

[0037] During the fertilization period, pay attention to field management, and arrange personnel to observe the flowering of cassava every 3-5 days. If flower buds appear, they need to be protected in severe weather to ensure that cassava can bloom from mid-September until the end of the year. Realize all the flowering of cassava before planting.

Example Embodiment

[0038] Embodiment two:

[0039] A method for inducing flowering of cassava, including the following steps:

[0040] S1. Choose the cassava planting area, choose tropical and subtropical marginal areas, choose places with less water, less gravel, and not often hit by high winds to cultivate cassava;

[0041] S2. Prepare the cassava planting land, ridging according to the row spacing of 1 meter, and planting holes with the row spacing of 1 meter * 1 meter are set on the ridge;

[0042] When preparing the soil, deep ploughing and harrowing are carried out, deep ploughing the soil 20 cm, deep ploughing and harrowing are carried out by machine tillage, and at the same time, the method of thickening the soil layer is used.

[0043] S3. Improve the planting land of cassava, and apply basal fertilizer to the land completed by site preparation by using plastic film cultivation;

[0044] On the well-prepared land, start the border according to the row spacing, apply the required fertilizer to the middle of the border and mix well with the soil at one time. Generally, 600 kg of farm manure, 25 kg of compound fertilizer, 20 kg of nitrogen fertilizer, 25 kg of potash fertilizer, and 25 kg of phosphate fertilizer are applied per mu. Kg, the border surface is covered with a 1-meter-wide mulch, compacted with soil around the mulch, and then the cassava stems are inserted into both sides of the border mulch according to the plant spacing, and the stems are exposed 3-5 cm from the ground.

[0045] S4. Select the cassava seed stems, choose the middle and lower part of the cassava main stem that is free of diseases and insects, has milk in the cut, is not damaged, fully matured, fresh, intact buds, thick and dense stems, and select Seed stems are processed;

[0046] Cut the selected seed stems before planting. After the selected seed stems, cut them into stem segments, with a length of about 10-15cm. When cutting the seed stems, pay attention to keeping the buds intact and free of cracks. , The cut is smooth.

[0047] S5. Plant the selected cassava seed stems. The planting method is flat laying or oblique cutting, and the planting density is 700 plants/mu;

[0048] Cassava seed stems are planted in advance at the end of February and early March each year. The environment at the end of February and early March can reduce soil moisture evaporation, keep the soil moist and loose, and promote early germination and growth of cassava, thereby inducing cassava flowering, which is beneficial to cassava The growth and roots are large and the yield can be increased by more than 30%.

[0049] S6. Topdressing cassava to induce flowering of cassava. The time for topdressing is 40-60 days after planting. Phosphate fertilizer and potassium fertilizer are applied per mu of cassava land to promote flowering of cassava;

[0050] The phosphate fertilizer is calcium-magnesium phosphate fertilizer, and it is evenly sprinkled on the planting land according to 30-50 kg per mu. The potassium fertilizer is potassium dihydrogen phosphate. The potassium dihydrogen phosphate solution accounts for 1% of the mass of potassium dihydrogen phosphate. Spray 3 times.

[0051] When protecting flower buds, other axillary buds should be removed in time, and only flower buds should be left. At the same time, new branches should be removed to induce cassava to bloom.

[0052] S7. After top dressing, the flower is promoted and the flower is preserved, and the flower-promoting fertilizer is used. The flower-promoting fertilizer adopts the root application method, and the N+P in the flower fertilizer is promoted 2 O 5 +K 2 The mass percentage of O ≥5%, the mass percentage of trace elements ≥8%, and the mass percentage of organic matter ≥15%;

[0053] During the fertilization period, pay attention to field management, and arrange for personnel to observe the flowering of cassava every 3 days. If flower buds appear, they need to be protected in severe weather.

[0054] The analysis of the results of the two examples shows that the method for inducing flowering of cassava adopts reasonable flower promotion measures at each stage of cassava, and conducts reasonable and targeted fertilization at each stage to prevent overnutrition. Induction of flowering of cassava stems, while removing excess axillary buds and branches to prevent nutrients from being dispersed and absorbed, thereby promoting cassava flowering, allowing cassava to bloom in succession from mid-September until the end of the year. flowering.

PUM

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