A kind of surface covering film for planting southern sand pear tree and preparation method thereof

A surface covering and pear tree technology, which is applied in the field of surface covering film for planting pear trees in the south and its preparation, can solve the problems of improving fruit and yield, achieve good mechanical properties, overcome high temperature and rainy obstacles, and have high heat preservation and moisture conservation. Effect

Active Publication Date: 2021-01-15
ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The decline in pear fruit and yield caused by aging and rotten roots has become an important reason for restricting pear consumption and sales prices. At present, the use of surface shelter and covering measures can effectively control soil moisture during the rainy season and achieve the goal of "protecting the roots and protecting the fruits". ', while the existing straw mulching, tree tray mulching, and grass mulching cannot achieve the effect of increasing fruit and yield at the same time

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] A surface covering film for planting southern sand pear trees. The raw materials include in parts by weight: 20 parts of PBAT, 3 parts of polylactic acid, 2 parts of ethylene-vinyl acetate copolymer, 3 parts of cellulose, 1 part of modified starch, carbonic acid 3 parts of calcium, 1 part of nano-scale titanium dioxide, 1 part of polycarbonate, 0.5 part of brassinolide, 2 parts of micronized silica gel, and 1 part of plasticizer.

[0019] Wherein, the cellulose is selected from ethyl cellulose. The modified starch is esterified starch. The particle diameter of the nanoscale titanium dioxide is 300-500nm, and the nanoscale titanium dioxide is anatase nanoscale titanium dioxide. Described plasticizer is tributyl citrate.

[0020] The preparation method of the surface covering film for planting the above-mentioned southern pear tree comprises the following steps:

[0021] Step 1, mix brassinolide and micropowder silica gel, grind and set aside;

[0022] Step 2, dry PBA...

Embodiment 2

[0025] A surface covering film for planting southern sand pear trees. The raw materials include in parts by weight: 23 parts of PBAT, 4 parts of polylactic acid, 3 parts of ethylene-vinyl acetate copolymer, 4 parts of cellulose, 2 parts of modified starch, carbonic acid 4 parts of calcium, 2 parts of nano-scale titanium dioxide, 2 parts of polycarbonate, 0.7 parts of brassinolide, 3 parts of micronized silica gel, and 1.5 parts of plasticizer.

[0026] Wherein, the cellulose is selected from hydroxypropyl methylcellulose. The modified starch is esterified starch. The particle diameter of the nanoscale titanium dioxide is 300-500nm, and the nanoscale titanium dioxide is anatase nanoscale titanium dioxide. Described plasticizer is tributyl citrate.

[0027] The preparation method of the surface covering film for planting the above-mentioned southern pear tree comprises the following steps:

[0028] Step 1, mix brassinolide and micropowder silica gel, grind and set aside;

[...

Embodiment 3

[0032] A surface covering film for planting southern sand pear trees. The raw materials include in parts by weight: 27 parts of PBAT, 6 parts of polylactic acid, 4 parts of ethylene-vinyl acetate copolymer, 5 parts of cellulose, 3 parts of modified starch, carbonic acid 5 parts of calcium, 2 parts of nano-sized titanium dioxide, 2 parts of polycarbonate, 0.8 parts of brassinolide, 3 parts of micronized silica gel, and 2 parts of plasticizer.

[0033] Wherein, the cellulose is selected from hydroxypropyl cellulose. The modified starch is esterified starch. The particle diameter of the nanoscale titanium dioxide is 300-500nm, and the nanoscale titanium dioxide is anatase nanoscale titanium dioxide. Described plasticizer is tributyl citrate.

[0034] The preparation method of the surface covering film for planting the above-mentioned southern pear tree comprises the following steps:

[0035] Step 1, mix brassinolide and micropowder silica gel, grind and set aside;

[0036] St...

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Abstract

The invention discloses a surface covering film used for southern Chinese-pear tree planting and a preparation method thereof. The surface covering film is prepared from PBAT, polylactic acid, ethylene-vinyl acetate copolymer, cellulose, modified starch, calcium carbonate, nanometer titanium dioxide, polycarbonate, brassinolide, micro-powder silica gel and a plasticizer. The mulching film can be used in a Chinese-pear plantation and overcome the obstacles of high temperature and rainy weather, the content of soluble solids of obtained fruits is improved by 10%, and the commercial fruit rate can be increased by 30%. Moreover, the prepared covering film has good mechanical properties, high heat preservation and moisture retention properties, good light transmittance, relatively low price andother properties, the film can be buried underground and completely degraded into water and carbon dioxide after use, and the requirements of environmental protection are met.

Description

technical field [0001] The invention belongs to the technical field of surface covering films, and in particular relates to a surface covering film for planting southern pear trees and a preparation method thereof. Background technique [0002] Sand pear, native to the Yangtze River Basin and its south area, is widely cultivated in the southern part of Jiangsu Province. It is mainly cultivated with early-maturing varieties such as "Aiganshui", "Cuiguan" and "Xingshui". The maturity period is mainly concentrated in the July and August. Pears are suitable for cultivation in sandy loam soil with deep soil layer, good drainage, and relatively high fertility level. The optimum water content for root growth is 60% to 80% of the maximum field water capacity of the soil. [0003] In recent years, with the intensification of global climate warming, summer rainfall in southern Jiangsu (Meiyu) and extreme high temperature (>35°C) have increased in frequency and duration, and the so...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L67/02C08L67/04C08L23/08C08L1/28C08L3/06C08L69/00C08K13/02C08K3/26C08K3/22C08K3/36C08K5/11C08J5/18A01G13/02
CPCA01G9/1438C08J5/18C08J2367/02C08J2401/28C08J2403/06C08J2423/08C08J2467/04C08J2469/00C08K3/36C08K5/11C08K13/02C08K2003/2241C08K2003/265C08K2201/003C08K2201/011
Inventor 糜林窦永敏万春雁霍恒志陈丙义狄华涛李金凤陈雪平
Owner ZHENJIANG AGRI SCI INST JIANGSU HILLY AREAS
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