CN105103919A - Method for planting potatoes in dry land in all-film mulching ridging micro-furrow mode - Google Patents

Abstract

The invention discloses a method for planting potatoes in dry land in an all-film mulching ridging micro-furrow mode. The method includes the following steps of (1) land selection, (2) soil preparation, (3) fertilizer application, (4) ridging, (5) mulching, (6) seed preparation, (7) sowing, (8) field management, (9) disease insect and weed damage prevention, (10) harvesting and (11) waste film removing. The method has the advantages that (1) the number of rain collecting faces is increased, and the rainfall infiltration rate is increased; (2) soil moisture content on ridges and soil temperature are remarkably increased, and nutritional growth of the potatoes is promoted; (3) the soil moisture content on the ridges in rainy seasons is reduced, high-temperature high-humidity stress is relieved, and disease risks are reduced; (4) the potatoes are planted on the tops of the ridges, soil is loose, and tuber development is promoted; (5) mechanical topdressing is facilitated, and fertilizer can be directly applied to the micro ridges; (6) black mulching film is adopted to cover the whole land, and weed in the field is removed; (7) the rainfall utilization efficiency is remarkably improved, and the potato tuber yield is remarkably increased. The method has wide application prospects for potato planting in dry northwest areas.

Description

The full film of a kind of Nonirrigated Potato covers the micro-ditch implantation methods of ridging

Technical field

The present invention relates to technical field of crop cultivation, be specifically related to the full film of a kind of Nonirrigated Potato and cover the micro-ditch implantation methods of ridging.

Background technology

Potato is one of Dry area northwest Three major grain crops, and cultivation history is long, and sowing area increases year by year in recent years.But at present Dry area northwest Cotton Varieties by Small Farming Households potato is mostly still continued to use traditional flat does ridging and cultivates, cause that potato yield is lower, commodity rate is low, productivity effect is undesirable, thus affects the enthusiasm of Cotton Varieties by Small Farming Households potato, limits the development of Potato Industry.

Chinese periodical " the Changjiang river vegetables " the 4th phase 35-39 page in 2015 discloses " semiarid region full film double-furrow broadcasts the impact on potato Law of Water Consumption "; " northwest agricultural journal " 3 phase 93-97 pages in 2013 disclose " improving straw mulching stays film multiple cropping potato yield, water use efficiency and N fertilizer effect impact on full film double-furrow "; " Ningxia agriculture and forestry science and technology " the 2nd phase 3-5 in 2011,30 pages disclose " Nonirrigated Potato full film double-furrow broadcasts technology moisture and effect on yield increase "; " modern agriculture science and technology " the 19th phase 105,107 pages in 2009 discloses " Dry Farmland potato full film double-furrow mulching plant technology "; Gansu agricultural university Master's thesis " full film double-furrow broadcasts Meteorological effect and the quantitative effect research thereof of potato " these several sections of articles mainly describe potato full film double-furrow and broadcast technology.

Summary of the invention

Object of the present invention is exactly for above-mentioned defect of the prior art, provides the full film of a kind of Nonirrigated Potato and covers the micro-ditch implantation methods of ridging.

In order to increase productivity effect on the basis of improving Nonirrigated Potato productive potential, applicant is on the basis of long-term field experiment and show-how, cover the micro-ditch of ridging around full film and plant this core technology, by regulating seeding row spacing, furrow size and furrow ratio, and comprehensively broadcast the technology essential factor such as front preparation, ridging overlay film, seed preparation, proper seeding, field management, disease pest and weed control, in good time results, the useless film of removing, define the full film of Nonirrigated Potato and cover the micro-ditch planting technology of ridging.

To achieve these goals, technical scheme provided by the invention is: the full film of a kind of Nonirrigated Potato covers the micro-ditch implantation methods of ridging, comprises the following steps:

1) selection of land: the plantation of potato is carried out in the selection plot that the soil is porous, permeability good, the content of organic matter is enriched, physical features is smooth;

2) wholely: to deep plough in time stubble-cleaning after preceding crop results, tilling depth 25 ~ 30cm and the depth is consistent, shallow plowing rake a kind of farm tools before broadcasting;

3) apply fertilizer: use sufficient base manure, mu has executed fertile machine 1000 ~ 2000kg, is evenly sprinkling upon earth's surface before ridging, concentrated by chemical fertilizer used and apply in the middle of large ridge, fertilization depth is 5 ~ 10cm, executes urea 20kg, superphosphate 25kg, potash fertilizer 2.5kg for every mu;

4) ridging: large row spacing 60cm, high 20cm, open ditch, little ditch depth 10cm, large furrow width 40cm in center, face, large ridge, furrow width is even, and ridge height is consistent;

5) overlay film: adopt Film Mulching in Autumn and top to insult the mode of overlay film, after preceding crop has been gathered in the crops, timely subsoiling is suned the earth which has been ploughed up, rake a kind of farm tools receives moisture in the soil, whole ground ridging plastic film mulch, Film Mulching in Autumn use improving straw mulching cuticula in stalk area more than needed, the Film Mulching in Autumn time be arrive late October soil freeze-up before, top insult the overlay film time be March early and middle ten days soil to have a midnight snack daytime when freezing; Film covering method is the full covered ground of black mulch film of 0.008 ~ 0.01mm, wide 120cm with thickness, and mulch film seam is placed in ditch, film and intermembranously not interspace, and joint fine earth covers, and mulch film and face, ridge are adjacent to, every the native waistband of the horizontal pressure of 2 ~ 3m one; After overlay film, management is after field overlay film completes, and finds that damaged timely fine earth covers tightly, and covering with plastic film, after one week, when mulch film and ground are adjacent to, punch every 50cm in micro-ditch and major groove in ridge, makes precipitation infiltrate in soil in time;

6) seed preparation: select compact, the strong stress resistance of plant type, potato shape is neat, commodity property good, output is high, colory potato detoxicating breeding, potato seed is strictly selected, reject disease, worm, rotten, hinder potato, one day prior to seeding, every 100kg seed with 40% agricultural streptomycin sulphate soluble powder 5g, be watered 10kg, even spraying potato seed surface, kills the bacterium on seed coat; Select Handilong metalaxyl-mn-zn, mancozeb, precious large gloomy liquid seed dressing, improve potato sprouting rate and drought-resistant ability; Then aqueous vapor dried, or dress seed with powder of carbendazim, the kind block after seed dressing is sowed immediately;

7) sow: temperature be stabilized in 5 ~ 7 DEG C, 10cm ground temperature be 7-8 DEG C time sow, the sowing time is the first tenday period of a month in mid or late April to May; Type of seeding is in the plantation of top, ridge, first open first planting hole with dibbler, proposed by soil, dibbling in hole, after making a call to second hole, the soil in second hole is proposed to be placed on first aperture, by that analogy, potato block 1 under every hole, seed level 3 ~ 5cm, after planting hole earthing, even power jams on, to make potato block and soil close contact; The semiarid region of precipitation 400-500mm, every mu of 3500 ~ 4500 strains of keeping a full stand of seedings;

8) field management: seedling stage after planting meets rain, need abolish in time and harden, and in order to emerging, when emerging, seedling and planting hole misplace, and should put seedling in time, and uneven need of emerging mend cultivation in time; Squaring period carries out foliage spray, bloom and tie the borax of potato phase every mu of use 0.1 ~ 0.3% or zinc sulphate, 0.5% potassium dihydrogen phosphate aqueous solution carry out foliage-spray, every 7d spray once, spray 2 ~ 3 times altogether, mu solution 50 ~ 70kg; Tuber expansion period carries out root to de-fertile plot and topdresses, and every mu imposes urea 10kg, diammonium phosphate 10kg;

9) disease pest and weed control: the prevention of late blight is the metalaxyl of employing 25%, or metalaxyl 800 times of liquid sprayings, or 40% Yimeiling, 200 times of liquid, or 50% thiophanate methyl wetting powder, 500 times of liquid, spray 1 time every 7d, connect spray 2 ~ 3 times; Late blight virus their early stage, adopts 1.5% rot missible oil, 1000 times of liquid, 20% viral A wetting powder, 500 times of liquid or prevents and treats with 1.5% ZhiBingLing(SIC) No. II emulsion, 1000 times of liquid; In the control of soil insect, the control of aphid, initial stage be employing 2.5% decis to 2500 times, water spraying or with 40% flolimat 1000 ~ 2000 times of liquid, the control of grub is that the trichlorphon 0.5kg of employing 90% is dissolved in water to be sprayed on 35kg fine earth and is spread in ditch, meanwhile, admix 5% Isofenphos methyl 15kg in conjunction with fertilising to prevent and treat; Weeding adopts chemical weed control mode, before ridging overlay film, carry out chemical weed control in conjunction with whole, and before and after whole ground ridging, each trifluralin ec every mu 120g is watered full ground and sprays 1 time; When farmland rodent density is more than 5%, selects Bromadiolone, diphacinone-Na kills mouse;

10) gather in the crops: when the blade until potato 2/3 turns yellow, plant starts withered, select fine day to gather in the crops in time, results slice off overground part cauline leaf and transport field the last week, with reduce stem tuber susceptible and reach shine ground object, results after stem tuber to carry out airing 3 ~ 5h carry out again classification pack;

11) remove useless film: first artificial or mechanical removal mulch film before potato harvest, guarantee to remain without useless film in soil, in order to avoid cause soil pollution, then gather in the crops potato with artificial or mechanical system, gather in the crops rear timely Subsoiling, the soil moisture conservation of rake a kind of farm tools.

The present invention improves on prior art basis, for actual production, regulate seeding row spacing, furrow size and furrow ratio, and comprehensively broadcast the technology essential factor such as front preparation, ridging overlay film, seed preparation, proper seeding, field management, disease pest and weed control, in good time results, the useless film of removing, the full film of Nonirrigated Potato of formation covers the micro-ditch planting technology of ridging, the more effective natural precipitation that utilizes, improve water use efficiency, reduce pest and disease risk, obtain field high yield, increase farmers' income.。

Beneficial effect of the present invention is: the full film of a kind of Nonirrigated Potato provided by the invention covers the micro-ditch implantation methods of ridging, it is the improvement full film of potato being covered to furrow plantation, ridge (wide 60cm), ditch (wide 40cm) are alternate, ridge are made micro-ditch, are different from common full film double-furrow and broadcast technology.It is advantageous that: 1) increase collection rain face, improve precipitation infiltration rate; 2) significantly improve soil water content and early stage soil temperature on ridge, promote potato nutritional growth; 3) reduce soil moisture content on ridge in rainy season, hot and humid coercing of postponing, reduce pest and disease risk; 4) potato seed is implanted in top, ridge, and loosing soil promotes Tuber development; 5) be beneficial to machinery to topdress, fertilizer can directly apply micro-ditch; 6) adopt the full covered ground of black mulch film, remove weeds in field; 7) hydrometeor type and Potato Yields is significantly improved.The method has application prospect comparatively widely in the potato planting of Northwest arid district.

Accompanying drawing explanation

Fig. 1 is the planting patterns schematic diagram that the full film of a kind of Nonirrigated Potato provided by the invention covers the micro-ditch implantation methods of ridging.

Embodiment

embodiment 1:

Height above sea level about 2000m, annual rainfall 300-400mm, the nonirrigated farmland of arid and semi-arid.

selection of land:

Be applicable to plantation potato plot, the soil is porous, permeability is good, the content of organic matter enrich, physical features is smooth.Potato avoids continuous cropping, and the general plot selecting the good medium above fertility of preserve moisture and fertility condition, front stubble with beans, wheat, corn crops for rotation as well.

wholely:

To deep plough in time stubble-cleaning after preceding crop results, tilling depth 25 ~ 30cm, and the depth is consistent, reaches dark, pine, flat, clean, soil is broken without a clod of earth, clean no-sundries, rake a kind of farm tools of should ploughing shallowly before broadcasting, makes that soil layer is soft to loosen, for ridging overlay film creates good soil condition.Area with good conditionsi can adopt rotovator rotary tillage, carries out soil disinfection in conjunction with whole.

fertilising:

Use sufficient base manure to play an important role to potato volume increase, general mu organic fertilizer 1000 ~ 2000kg, is evenly sprinkling upon earth's surface before ridging.Concentrated by every mu of amount of application determined by chemical fertilizer used and apply in the middle of large ridge, fertilization depth is about 5-10cm, generally executes urea 20kg, superphosphate 25kg, potash fertilizer 2.5kg for every mu.

ridging:

Large row spacing 60cm, high 20cm, and open ditch, little ditch depth 10cm, large furrow width 40cm in center, face, large ridge.Require that furrow width is even, ridge height is consistent.

overlay film:

the overlay film time:

Overlay film when daytime, food taken late at night froze (March early and middle ten days soil) is insulted based on autumn overlay film (late October freeze-up to soil before) and top, after preceding crop has been gathered in the crops, timely subsoiling has been suned the earth which has been ploughed up, and rake a kind of farm tools receives moisture in the soil, whole ground ridging plastic film mulch, Film Mulching in Autumn can apply improving straw mulching cuticula in stalk area of having more than needed.

film covering method:

With the black film mulching of thickness 0.008 ~ 0.01mm, wide 120cm.The full covered ground of mulch film, mulch film seam is placed in ditch, film and intermembranously not interspace, and joint fine earth covers.Require that mulch film and face, ridge are adjacent to, every the native waistband of the horizontal pressure of 2 ~ 3m one.Ridging laminating machine can be selected once to complete ridging and plastic mulching on producing.

manage after overlay film:

After field overlay film completes, forbid livestock to enter trample on.Often to check, find that damaged timely fine earth covers tightly.Covering with plastic film, after one week, when mulch film and ground are adjacent to, punch every 50cm in micro-ditch and major groove in ridge, makes precipitation infiltrate in soil in time.

seed preparation:

fine variety production:

In conjunction with local natural conditions and climate characteristic, select that plant type is compact, strong stress resistance, potato shape is neat, commodity property good, output is high, colory potato detoxicating breeding.As kinds such as Xin great Ping, No. 3, Gansu Province potato, No. 5, Gansu Province potato, Longshu No.6, No. 7, Gansu Province potato, No. 8, Gansu Province potato, Zhuangshu 3, No. 9, Gansu Province potato, No. 10, Gansu Province potatos.

seed treatment:

Potato seed is strictly selected, reject disease, worm, rotten, hinder potato.One day prior to seeding, every 100kg seed 40% agricultural streptomycin sulphate soluble powder 5g.Be watered 10kg, even spraying potato seed surface, kills the bacterium on seed coat; The seed dressing such as Handilong metalaxyl-mn-zn, mancozeb, precious large gloomy liquid can be selected, improve potato sprouting rate and drought-resistant ability; Then aqueous vapor is dried, or dress seed with powder of carbendazim.Kind block after seed dressing can not be put for a long time, and existing sowing of should now dressing seed, preferably all sowed the same day.

sowing:

sowing time:

Temperature be stabilized in 5 ~ 7 DEG C, 10cm ground temperature reach 7-8 DEG C time sow, the sowing time can be determined in conjunction with local climate feature in various places, is generally advisable in the first tenday period of a month in mid or late April to May.Overlay film is insulted on autumn overlay film and top can significantly improve surface soil water content, sows without the need to moisture creating in about precipitation 400mm area; In the severe drought time, the upper seeding of seat water can be carried out, improve potato sprouting rate.

type of seeding:

In the plantation of top, ridge, first open first planting hole with dibbler, soil is proposed, dibbling in hole, after making a call to second hole, the soil in second hole is proposed to be placed on first aperture, by that analogy.Potato block 1 under every hole, seed level 3 ~ 5cm, wants even power to jam on, to make potato block and soil close contact after planting hole earthing.Prevent planting hole loose moisture in the soil and meet rain impact of hardening and emerge in a large number.

rational close planting:

The kind that liquid manure is sufficient, breeding time is shorter should be close; The kind that water and fertilizer condition is poor, breeding time is longer should be rare.Meanwhile, reasonable planting density should be determined according to local climate feature, the semiarid region of precipitation 400-500mm, every mu of 3500 ~ 4500 strains of keeping a full stand of seedings.

field management:

seedling management:

After planting meet rain, planting hole is easily formed and hardens, should abolish in time and harden, in order to emerging.As seedling and planting hole misplace when emerging, seedling should be put in time.Emerge and uneven should mend cultivation in time.

squaring period manages:

Optimum period, carries out foliage spray.Potato is more responsive to boron, zinc microelement.Blooming and tying the potato phase, the borax of every mu of use 0.1 ~ 0.3% or zinc sulphate, 0.5% potassium dihydrogen phosphate aqueous solution carry out foliage-spray, generally every 7d spray once, spray 2 ~ 3 times altogether, mu solution 50 ~ 70kg.

tuber expansion period manages:

Tuber expansion period will will carry out root to de-fertile plot and topdress.Mu imposes urea 10kg, diammonium phosphate 10kg.Chase after less or do not chase after during arid, strengthening in right amount when rainfall is plentiful.

disease pest and weed is prevented and treated:

late blight is prevented and treated:

Potato Major Diseases is late blight, occur serious before and after rainwater on the high side and plant florescence, to put prevention first, find that primary infection focus is extracted buried immediately, and in time with 25% metalaxyl or metalaxyl 800 times of liquid spray, or with 40% Yimeiling, 200 times of liquid, or 50% thiophanate methyl wetting powder, 500 times of liquid, spray 1 time every 7d, connect spray 2 ~ 3 times.Virus disease their early stage, with 1.5% rot missible oil, 1000 times of liquid, 20% viral A wetting powder, 500 times of liquid or with the control of 1.5% ZhiBingLing(SIC) No. II emulsion, 1000 times of liquid.

controlling underground pest:

Major Pests has aphid, grub, large black cutworm, potato ladybug etc.Aphid is the main media of transmitted virus, strictly prevent and treat, and the initial stage of origination decis of 2.5% is prevented and treated to the spraying of 2500 times, water or with flolimat 1000 ~ 2000 times of liquid of 40%, and effect is better.The trichlorphon 0.5kg of 90% such as grub is dissolved in water to be sprayed on 35kg fine earth and is spread in ditch.According to soil insect, a situation arises simultaneously, admixes 5% Isofenphos methyl 15kg prevent and treat in conjunction with fertilising.

chemical weed control:

Potato planting generally selects black film mulching, and weeds in field is less.Main before ridging overlay film, carry out chemical weed control in conjunction with whole.In the plot that Weed infestation is serious, before and after whole ground ridging, each trifluralin ec every mu 120g is watered full ground and sprays 1 time, to kill grassy weed and small-sized seed broad leaved weed.

kill mouse:

When farmland rodent density is more than 5%, selects the medicament such as Bromadiolone, diphacinone-Na, prevent and treat in time.

results:

Should fine day be selected in time to gather in the crops when blade until potato 2/3 turns yellow, plant starts withered.Results slice off overground part cauline leaf and transport field the last week, to reduce the susceptible object with reaching solarization ground of stem tuber.Results after stem tuber to carry out airing 3 ~ 5h carry out classification pack, strictly reject earth, sick rotten potato and break hinder potato.

remove useless film:

First artificial or mechanical removal mulch film before potato harvest, guarantees to remain, in order to avoid cause soil pollution without useless film in soil.Then artificial or mechanical harvest potato, has gathered in the crops rear timely Subsoiling, the soil moisture conservation of rake a kind of farm tools.

Last it is noted that the foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, although with reference to previous embodiment to invention has been detailed description, for a person skilled in the art, it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein portion of techniques feature.Within the spirit and principles in the present invention all, any amendment done, equivalent replacement, improvement etc., all should be included within protection scope of the present invention.

Claims (1)

1. the full film of Nonirrigated Potato covers the micro-ditch implantation methods of ridging, it is characterized in that, comprises the following steps:

1) selection of land: the plantation of potato is carried out in the selection plot that the soil is porous, permeability good, the content of organic matter is enriched, physical features is smooth;

2) wholely: to deep plough in time stubble-cleaning after preceding crop results, tilling depth 25 ~ 30cm and the depth is consistent, shallow plowing rake a kind of farm tools before broadcasting;

3) apply fertilizer: use sufficient base manure, mu has executed fertile machine 1000 ~ 2000kg, is evenly sprinkling upon earth's surface before ridging, concentrated by chemical fertilizer used and apply in the middle of large ridge, fertilization depth is 5 ~ 10cm, executes urea 20kg, superphosphate 25kg, potash fertilizer 2.5kg for every mu;

4) ridging: large row spacing 60cm, high 20cm, open ditch, little ditch depth 10cm, large furrow width 40cm in center, face, large ridge, furrow width is even, and ridge height is consistent;

5) overlay film: adopt Film Mulching in Autumn and top to insult the mode of overlay film, after preceding crop has been gathered in the crops, timely subsoiling is suned the earth which has been ploughed up, rake a kind of farm tools receives moisture in the soil, whole ground ridging plastic film mulch, Film Mulching in Autumn use improving straw mulching cuticula in stalk area more than needed, the Film Mulching in Autumn time be arrive late October soil freeze-up before, top insult the overlay film time be March early and middle ten days soil to have a midnight snack daytime when freezing; Film covering method is the full covered ground of black mulch film of 0.008 ~ 0.01mm, wide 120cm with thickness, and mulch film seam is placed in ditch, film and intermembranously not interspace, and joint fine earth covers, and mulch film and face, ridge are adjacent to, every the native waistband of the horizontal pressure of 2 ~ 3m one; After overlay film, management is after field overlay film completes, and finds that damaged timely fine earth covers tightly, and covering with plastic film, after one week, when mulch film and ground are adjacent to, punch every 50cm in micro-ditch and major groove in ridge, makes precipitation infiltrate in soil in time;

6) seed preparation: select compact, the strong stress resistance of plant type, potato shape is neat, commodity property good, output is high, colory potato detoxicating breeding, potato seed is strictly selected, reject disease, worm, rotten, hinder potato, one day prior to seeding, every 100kg seed with 40% agricultural streptomycin sulphate soluble powder 5g, be watered 10kg, even spraying potato seed surface, kills the bacterium on seed coat; Select Handilong metalaxyl-mn-zn, mancozeb, precious large gloomy liquid seed dressing, improve potato sprouting rate and drought-resistant ability; Then aqueous vapor dried, or dress seed with powder of carbendazim, the kind block after seed dressing is sowed immediately;

7) sow: temperature be stabilized in 5 ~ 7 DEG C, 10cm ground temperature be 7-8 DEG C time sow, the sowing time is the first tenday period of a month in mid or late April to May; Type of seeding is in the plantation of top, ridge, first open first planting hole with dibbler, proposed by soil, dibbling in hole, after making a call to second hole, the soil in second hole is proposed to be placed on first aperture, by that analogy, potato block 1 under every hole, seed level 3 ~ 5cm, after planting hole earthing, even power jams on, to make potato block and soil close contact; The semiarid region of precipitation 400-500mm, every mu of 3500 ~ 4500 strains of keeping a full stand of seedings;

8) field management: seedling stage after planting meets rain, need abolish in time and harden, and in order to emerging, when emerging, seedling and planting hole misplace, and should put seedling in time, and uneven need of emerging mend cultivation in time; Squaring period carries out foliage spray, bloom and tie the borax of potato phase every mu of use 0.1 ~ 0.3% or zinc sulphate, 0.5% potassium dihydrogen phosphate aqueous solution carry out foliage-spray, every 7d spray once, spray 2 ~ 3 times altogether, mu solution 50 ~ 70kg; Tuber expansion period carries out root to de-fertile plot and topdresses, and every mu imposes urea 10kg, diammonium phosphate 10kg;

9) disease pest and weed control: the prevention of late blight is the metalaxyl of employing 25%, or metalaxyl 800 times of liquid sprayings, or 40% Yimeiling, 200 times of liquid, or 50% thiophanate methyl wetting powder, 500 times of liquid, spray 1 time every 7d, connect spray 2 ~ 3 times; Late blight virus their early stage, adopts 1.5% rot missible oil, 1000 times of liquid, 20% viral A wetting powder, 500 times of liquid or prevents and treats with 1.5% ZhiBingLing(SIC) No. II emulsion, 1000 times of liquid; In the control of soil insect, the control of aphid, initial stage be employing 2.5% decis to 2500 times, water spraying or with 40% flolimat 1000 ~ 2000 times of liquid, the control of grub is that the trichlorphon 0.5kg of employing 90% is dissolved in water to be sprayed on 35kg fine earth and is spread in ditch, meanwhile, admix 5% Isofenphos methyl 15kg in conjunction with fertilising to prevent and treat; Weeding adopts chemical weed control mode, before ridging overlay film, carry out chemical weed control in conjunction with whole, and before and after whole ground ridging, each trifluralin ec every mu 120g is watered full ground and sprays 1 time; When farmland rodent density is more than 5%, selects Bromadiolone, diphacinone-Na kills mouse;

10) gather in the crops: when the blade until potato 2/3 turns yellow, plant starts withered, select fine day to gather in the crops in time, results slice off overground part cauline leaf and transport field the last week, with reduce stem tuber susceptible and reach shine ground object, results after stem tuber to carry out airing 3 ~ 5h carry out again classification pack;

11) remove useless film: first artificial or mechanical removal mulch film before potato harvest, guarantee to remain without useless film in soil, in order to avoid cause soil pollution, then gather in the crops potato with artificial or mechanical system, gather in the crops rear timely Subsoiling, the soil moisture conservation of rake a kind of farm tools.