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A kind of sweet potato seedling cultivation substrate

A technology for cultivation substrate and sweet potato, applied in the field of agricultural cultivation, can solve the problems of sweet potato yield and quality, loss of ventilation and water retention, lack of nutritional function, etc., and achieves the effects of reducing cultivation cost, rich in nutrients and high yield

Active Publication Date: 2020-05-29
JIANGSU COASTAL AREA AGRI SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, vermiculite is mainly used as the cultivation substrate for sweet potatoes. Because vermiculite is a kind of ore resource, its resources are limited, and the production process is complicated. It must be returned to the furnace for high-temperature calcination and disinfection for repeated use, so the price is expensive.
When vermiculite is used as the cultivation substrate of the original seed of detoxified sweet potato, because of its fragility, with the prolongation of the use time, it is easy to make the medium dense and lose the air permeability and water retention, resulting in serious late blight; vermiculite only has water retention , does not have nutritional function, and nutrient solution needs to be supplemented during production to meet the growth needs of the original seed of detoxified sweet potato, which increases the production cost and greatly affects the yield and quality of sweet potato

Method used

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  • A kind of sweet potato seedling cultivation substrate
  • A kind of sweet potato seedling cultivation substrate
  • A kind of sweet potato seedling cultivation substrate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Select 9 matrix grooves to cultivate sweet potatoes, be divided into 3 groups, each group is repeated 3 times, the first group adopts conventional matrix cultivation (vermiculite), the second group adopts the matrix cultivation method provided by the prior art, and the third group adopts the present invention The medium for cultivating sweet potato seedlings. The yield per mu and commodity rate of the three groups of sweet potatoes were calculated, and the results are shown in Table 1. The substrate method provided by the prior art refers to the patent CN201410267338.3 (a soilless cultivation substrate and its preparation method and application), that is, the volume ratio of coconut peat, perlite, organic soil and fermented soybean meal is: 580-620: 140-160:140-160:100.

[0032] Table 1

[0033]

[0034] From the analysis of the above data, it can be known that the seedling cultivation substrate of the present invention can significantly increase the yield and comm...

Embodiment 2

[0036] Select 9 matrix grooves to cultivate sweet potatoes, be divided into 3 groups, each group is repeated 3 times, the first group adopts conventional matrix cultivation (vermiculite), the second group adopts the matrix cultivation method provided by the prior art, and the third group adopts the present invention The medium for cultivating sweet potato seedlings. The tuber quality indexes of the three groups of sweet potatoes were measured, including starch content, Vc content, crude protein content and total phenol content. The results are shown in Table 2. The substrate method provided by the prior art refers to the patent CN201410267338.3 (a soilless cultivation substrate and its preparation method and application), that is, the volume ratio of coconut peat, perlite, organic soil and fermented soybean meal is: 580-620: 140-160:140-160:100.

[0037] Table 2

[0038]

[0039]

[0040] From the above data analysis, it can be seen that the quality of sweet potato tuber...

Embodiment 3

[0042] Select 9 matrix grooves to cultivate sweet potatoes, be divided into 3 groups, each group is repeated 3 times, the first group adopts conventional matrix cultivation (vermiculite), the second group adopts the matrix cultivation method provided by the prior art, and the third group adopts the present invention The medium for cultivating sweet potato seedlings. The disease rates of the three groups of sweet potatoes were measured, and the results are shown in Table 3. The substrate method provided by the prior art refers to the patent CN201410267338.3 (a soilless cultivation substrate and its preparation method and application), that is, the volume ratio of coconut peat, perlite, organic soil and fermented soybean meal is: 580-620: 140-160:140-160:100.

[0043] table 3

[0044]

[0045] From the above data analysis, it can be known that the use of the seedling cultivation substrate of the present invention can significantly reduce the disease rate of sweet potato.

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Abstract

The invention belongs to the field of agricultural cultivation, and specifically relates to a cultivation substrate for a sweet potato seedling. The cultivation substrate is prepared through the following steps: (1) material fermentation: a step of uniformly mixing the following components in parts by weight: 30 parts of sweet potato stalk powder, 30 parts of blue algae, 10 parts of cow dung, 0.5 part of potassium hydroxide, 0.2 part of urea and 0.06 part of a fertilizer fermenting agent, carrying out stacking decomposing, guaranteeing the content of water to be 40 to 50% and a temperature to be 50 to 60 DEG C during the period of stacking decomposing, and carrying out turning once every 15 days until the state of decomposing is achieved, i.e., humus is obtained; and (2) substrate mixing: a step of weighing the following components in parts by weight: 40 parts of the humus, 20 parts of plant ash, 10 parts of pinewood sawdust, 10 parts of coarse sand, 0.8 part of sodium stearoyl lactylate and 0.005 part of a fungicide, and carrying out uniform mixing so as to obtain the cultivation substrate for the sweet potato seedling. The substrate provided by the invention can significantly improve commodity characteristics, disease resistance and yield of sweet potato, and enhances the quality of the sweet potato.

Description

technical field [0001] The invention belongs to the field of agricultural cultivation, and in particular relates to a cultivation substrate for sweet potato seedlings. [0002] technical background [0003] China is the largest producer of sweet potatoes in the world. In 2010, the planting area was about 4.6 million hectares, accounting for about 50% of the world's planting area, and the annual output was about 1.0×108 tons, accounting for 75.3% of the world's total output. It is an important grain in China, Raw material for feed and industrial processing. Sweet potato is drought-resistant, salt-alkali-resistant, barren-resistant, high yield, wide application, strong adaptability, and is an important energy crop. my country has little land and a lot of people. Under the pressure of food security, the development of sweet potato industry can only make more use of non-cultivated land resources with soil barriers under the principle of "not competing for land with food". [00...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G24/20A01G24/30A01G24/22A01G24/10A01G24/23C05G3/00
CPCA01G22/00C05C9/00C05D1/00C05G3/00C05F3/00C05F11/00C05F11/08C05F17/00C05F9/04
Inventor 董静洪立洲邢锦城王茂文丁海荣朱小梅刘冲赵宝泉温祝桂
Owner JIANGSU COASTAL AREA AGRI SCI RES INST
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