A seedling raising device suitable for machine-transplanted older seedlings and its application

A seedling and older technology, which is applied in the field of agricultural cultivation, can solve the problems of increasing the difficulty of water management of seedlings, delaying the harvest time, aligning seedlings, and having a great impact on root packing, so as to reduce the risk of burning seedlings and dead seedlings, and improve the rate of full seedlings and strong seedlings , Increase the uniformity of seedlings

Active Publication Date: 2020-09-18
JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

First of all, compared with nutrient soil, seedling raising in substrate has a shorter delay in fertilizer effect, and seedlings are easy to defertilize and turn yellow after one leaf and one heart; second, the physical properties of the substrate determine its poor water retention, which increases the difficulty of water management for seedlings; Third, if the substrate is decomposed, the fermentation is insufficient, and the stirring is uneven, it is easy to cause the phenomenon of burning seedlings and dead seedlings, so the alignment of seedlings and root packing have a great impact
[0004] In the current rice production process, it is often encountered that the maturity of the previous stubble is delayed, the rainy weather delays the harvest time, and the failure of mechanical equipment makes it impossible to transplant within the planned time, resulting in the failure of transplanting the right-age seedlings

Method used

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  • A seedling raising device suitable for machine-transplanted older seedlings and its application

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preparation example Construction

[0029] The first nutritional seedling-raising paper and the second nutritional seedling-raising paper in the present invention are preferably seedling-raising papers from the same source, and the preparation methods of the first nutritional seedling-raising paper and the second nutritional seedling-raising paper include: using potassium sulfate solution to modify wheat straw Sexual treatment to obtain fiber gel; mix the fiber gel with water-absorbent resin, plastic absorber and cross-linking agent to obtain a mixed homogeneous slurry; the mixed homogeneous slurry is sequentially paved and formed, dried into paper and cut Winding, get nutritious seedling raising paper. In the present invention, when preparing the nutritional seedling-raising paper, potassium sulfate solution is used to modify wheat straw to obtain fiber gel. In the present invention, the wheat straw is preferably pretreated before use, and the pretreatment process is preferably cutting the wheat straw into 2-3 ...

Embodiment 1

[0040] The wheat straw was cut into 2 cm long segments with a guillotine, and then soaked in 4% potassium sulfate solution for 7 days; the soaked wheat straw was boiled in a pot for 30 minutes to obtain a fiber gel. Put the fiber gel into the beating tank, make the mass concentration of the fiber gel in the tank reach 65%, then add sodium polyacrylate, water-based polyurethane and polyvinyl alcohol respectively, and stir evenly; make the three in the homogenate The mass concentration of the mixture reached 2%, 3% and 1% in turn to obtain a mixed homogenate; the mixed homogenate was transported to the inclined wire former for molding treatment until the mixed homogenate was deposited into raw pulp wet paper, and then The raw pulp wet paper is dried at 100°C, so that the moisture content of the raw pulp wet paper is 15%, and the dried raw pulp paper is obtained; the dried raw pulp paper is cut into 280mm width with a guillotine The paper tape is then wound into nutrient seedling...

Embodiment 2

[0050] The wheat straw was cut into 2 cm long segments with a guillotine, and then soaked in 4% potassium sulfate solution for 7 days; the soaked wheat straw was boiled in a pot for 30 minutes to obtain a fiber gel. Put the fiber gel into the beating tank, make the mass concentration of the fiber gel in the tank reach 65%, then add sodium polyacrylate, water-based polyurethane and polyvinyl alcohol respectively, and stir evenly; make the three in the homogenate The mass concentration of the mixture reached 2%, 3% and 1% in turn to obtain a mixed homogenate; the mixed homogenate was transported to the inclined wire former for molding treatment until the mixed homogenate was deposited into raw pulp wet paper, and then The raw pulp wet paper is dried at 100°C, so that the moisture content of the raw pulp wet paper is 15%, and the dried raw pulp paper is obtained; the dried raw pulp paper is cut into 280mm width with a guillotine The paper tape is then wound into nutrient seedling...

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Abstract

The invention provides an older-seedling cultivation device suitable for mechanical rice transplanting and application thereof and belongs to the technical field of agricultural cultivation. The older-seedling cultivation device comprises a seedling cultivation tray, a cultivation medium and seedling cultivation paper, wherein first seedling cultivation paper, the cultivation medium layer, first nutritional seedling cultivation paper and second seedling cultivation paper are sequentially arranged in the seedling cultivation tray. The older-seedling cultivation device has the advantages that according to the fact that when seedlings are 20 days old, the height of the seedlings is smaller than that of the control, the base stem width, leaf area, chlorophyll content and overground part and root system dry weight of the seedlings are evidently increased, and root shoot ratio and root system winding force and vigor are increased evidently, the device can evidently improve seedling quality;in addition, according to the fact that when the seedlings are 30 days old, the quality of the seedlings is evidently higher than that of the control, the height of the seedlings is evidently smallerthan that of the control, and the seedlings are still suitable for mechanical rice transplanting, the device can prolong the suitable planting period of the seedlings; meanwhile, the device can reducecultivation medium use amount, save cost for farmers and increase efficiency.

Description

technical field [0001] The invention belongs to the technical field of agricultural cultivation, and in particular relates to a seedling raising device for older seedlings suitable for machine-transplanting and its application. Background technique [0002] Under the premise of the current mechanized rice transplanting, it is also necessary to cultivate rice seedlings suitable for machine transplanting, but machine transplanting has strict requirements on the age of rice seedlings. If the seedling age of machine-transplanted rice is too long, the seedling height will increase, the yellow leaves will increase, and the rooting force will decrease. Late, the number of effective tillering nodes is less, which in turn affects the formation of the appropriate number of panicles required for high yield and reduces rice yield. Tests have shown that the suitable transplanting age for matrix seedling raising is in the range of 15 to 20 days. With proper cultivation, the yield per mu ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01G9/029D21H27/30D21H11/12D21F11/00
CPCA01G9/029D21F11/00D21H11/12D21H27/30
Inventor 文廷刚王伟中顾大路钱新民
Owner JIANGSU XUHUAI DISTRICT HUAIYIN AGRI SCI RES INST
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