Alfalfa planting method adopting full-biodegradable mulching film mulching

A technology for degrading mulch and planting methods, applied in botany equipment and methods, plant protection, plant cultivation, etc., can solve the problem that biodegradable mulch cannot take into account both degradation rate and mechanical strength, mulch fragments are mixed into alfalfa, and alfalfa is successfully planted It can improve the success rate of planting, strengthen the effect of suppressing weeds, and enhance competitiveness

Pending Publication Date: 2021-08-06
河南青源天仁生物技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In order to solve the above problems, the present invention provides a method for planting alfalfa covered with biodegradable plastic film, which can simultaneously solve the problems of low success rate of alfalfa planting in the arid area of ​​Northwest China and the problem that plastic film fragments are mixed into alfalfa. The problem of degradation rate and mechanical strength cannot be taken into account at the same time. In addition, the biodegradable mulch degrades quickly in the later stage, which reduces the chance of biodegradable mulch mixed with alfalfa after grass harvesting, and avoids being eaten by animals

Method used

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preparation example Construction

[0043] In the alfalfa planting method covered with fully biodegradable plastic film according to the present invention, the preparation method of the modified calcium carbonate comprises the following steps: (1) by mass parts, weigh 100 parts of nanometer calcium carbonate powder, add 10 parts The dehydrated ethanol solution of the composite coupling agent with a concentration of 20wt% is continuously stirred and heated in a high-speed mixer for 1-2 hours, the speed is 1000-2000 rpm, and the temperature is 70-80 ° C. After filtering, it is dried at 100-120 ° C to obtain primary carbonic acid Calcium powder; wherein the components of the composite coupling agent are aluminum zirconate coupling agent, γ-methacryloxypropyltrimethoxysilane and titanate coupling agent, and the weight ratio is 1:1:1 (2) Add 100 parts of primary treatment calcium carbonate powder, 5-10 parts of sodium silicate and 50-100 parts of deionized water in the reaction flask, then slowly add 2.5wt% hydrochlor...

Embodiment 1

[0054] Such as figure 1 According to the specifications shown, the experiment of planting alfalfa with fully biodegradable plastic film was carried out in Zhangye City, Gansu Province on March 27.

[0055] (1) Preparation of fully biodegradable mulch film: (1) by weight, 20 parts of modified starch and 30 parts of modified calcium carbonate are mixed in a ball mill in proportion, add 8 parts of absolute ethanol and 0.6 part of citric acid, at temperature Grind at 100° C. for 1-2 hours, and dry to obtain a starch / calcium carbonate composite filler; (2) by weight, will contain the starch / calcium carbonate composite filler, 100 parts of full biodegradable resin (polylactic acid (PLA) The mass ratio of poly(adipic acid / butylene terephthalate (PBAT) is 0.1:1), 30 parts of additives and 1 part of carbon black and other raw materials are weighed according to the set ratio and added to the mixing hopper for stirring After uniformity, it enters the single-screw extruder with exhaust f...

Embodiment 2

[0061] Such as figure 1 According to the specifications shown, the experiment of planting alfalfa with fully biodegradable plastic film was carried out in Tongliao City, Inner Mongolia Autonomous Region on August 22.

[0062] (1) Preparation of fully biodegradable mulch film: (1) by weight, 40 parts of modified starch and 50 parts of modified calcium carbonate are mixed in a ball mill in proportion, and 8 parts of absolute ethanol and 0.6 part of citric acid are added. Grind at 80° C. for 1 hour, and obtain starch / calcium carbonate composite filler after drying; Butylene dicarboxylate (PBAT), polybutylene succinate-butylene adipate (PBSA) and polymethylethylene carbonate (PPC), mass ratio 1:0.1:0.1) and 10 The raw materials of additives are weighed according to the set ratio and added to the mixing hopper to stir evenly, and then enter the single-screw extruder with exhaust function for blow molding; (3) The blow-molded film After entering the traction station, after trimmin...

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Abstract

The invention provides an alfalfa planting method adopting full-biodegradable mulching film mulching. The method adopts planting, field management and cutting, and comprises the steps of seed selection, irrigation, base fertilizer application, soil preparation, narrow-row hole sowing, field management and harvesting. The full-biodegradable mulching film comprises the following components in parts by weight: 100 parts of full-biodegradable resin, 20-40 parts of modified starch and 30-50 parts of modified calcium carbonate, and the performance of the full-biodegradable mulching film meets the regulations of the national standard GB / T35795-2017 full-biodegradable mulching film for agricultural uses, the method can solve the problem that a biodegradable mulching film cannot give consideration to the degradation rate and the mechanical strength at the same time while the problems that the success rate of alfalfa planting in the northwest arid region is low and film-mulching planting film fragments are mixed into alfalfa are solved, and damage to livestock eating by mistake is avoided.

Description

technical field [0001] The invention relates to the field of agricultural planting, in particular to a method for planting alfalfa covered with fully biodegradable plastic film. Background technique [0002] Alfalfa is an indispensable forage for modern animal husbandry and enjoys the special status of "king of forage". Especially in the dairy industry, alfalfa is the most important and the best source of plant protein. Practices at home and abroad have repeatedly proved that adding alfalfa no matter It has an irreplaceable effect on improving the milk production rate of dairy cows, reducing the unit cost of milk, and improving the health level of dairy cows. In addition to dairy cows, adding a certain amount of alfalfa to the feed of herbivorous animals such as beef cattle and mutton sheep will also improve the growth rate and meat quality of beef cattle and mutton sheep. With the development of my country's animal husbandry, the quantity of imported high-quality alfalfa h...

Claims

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Application Information

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IPC IPC(8): A01G20/00A01G13/02C08J5/18C08L67/02C08L67/04C08L3/02C08L29/04C08L23/08C08L69/00C08K9/04C08K9/06C08K3/26C08K9/10
CPCA01G20/00A01G13/0262C08J5/18C08J2367/02C08J2467/04C08J2403/02C08J2429/04C08J2423/08C08J2469/00C08K9/04C08K9/06C08K2003/265C08K9/10C08K9/08Y02A40/28
Inventor 朱德新汤小华韩庆辉黄岩
Owner 河南青源天仁生物技术有限公司
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