CN106717798A - A kind of method of the low cadmium forage grass cultivation of high yield - Google Patents
A kind of method of the low cadmium forage grass cultivation of high yield Download PDFInfo
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- CN106717798A CN106717798A CN201611047189.5A CN201611047189A CN106717798A CN 106717798 A CN106717798 A CN 106717798A CN 201611047189 A CN201611047189 A CN 201611047189A CN 106717798 A CN106717798 A CN 106717798A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B79/00—Methods for working soil
- A01B79/02—Methods for working soil combined with other agricultural processing, e.g. fertilising, planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C21/00—Methods of fertilising, sowing or planting
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G22/00—Cultivation of specific crops or plants not otherwise provided for
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
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Abstract
The invention discloses a kind of method of the low cadmium forage grass cultivation of high yield, its step：A, selection of land and site preparation：Using farmland Cultivator site preparation, artificial trench digging；B, pasture growing：Carry out osmanthus and herd a work and between rye grass, osmanthus is transplanted after herding a First Year kind stem nursery breeding, and the second season and later taking stay the root and stem of certain plants to pass the winter, and rye grass is live；C, rye grass fertilising：In rye grass planting location trench digging, bar liming makes lime be mixed with soil in ditch；D, osmanthus herd a fertilising：The cave of length is dug, liming makes lime be stirred evenly with hoe with soil in ditch；E, herbage harvesting：Rye grass cradle for the first time, and rye grass is cradled later, toothing；Osmanthus is herded No. one and cradle for the first time, toothing.Easy to implement the method, easy to operate, implementation soil conditioner is reasonably combined with organic fertilizer, reduces herbage cadmium content, improves the feed safety of herbage, while optimizing and improving soil quality.
Description
Technical field
The invention belongs to the planting technology field of the low cadmium forage grass of high yield, it is more particularly to that a kind of low cadmium of high yield is feeding to herd
The method of grass cultivation, it is applied to osmanthus on acidity mild or moderate cadmium pollution (the complete 0.3~0.9mg/kg of cadmium content of the soil) soil of south
Herd the safe pasture growing technology of high yield of No. one/Ryegrass Rotation Regime.
Background technology
Herbage is both feed, and with good conservation and restoration function.In recent years, because herbage has growth
Hurry up, the advantages of biomass is big, herbage is also increasingly subject to the favor of people as the rehabilitation plant of heavy-metal contaminated soil.
Rye grass and Gui Mu mono- all have pionner characteristic, and growth is fast, and yield is high, can repeatedly cradle and regenerate, right
Heavy metal also has very strong resistance and accumulation effect, is also commonly used for administering and restoration of soil polluted by heavy metal, is recycled in soil
During play extremely important effect.Rye grass herds a crop rotation and is that southern herbage is topmost with organic fertilizer with osmanthus
One of mode of production, but increase year by year with the organic materials cadmium content such as organic fertilizer, rice straw, osmanthus is herded No. one and is surpassed in rye grass cadmium
Mark risk also gradually increases, and is amplified step by step through food chain by animal husbandry product, and then endangers the food and physical and mental health of people.
Especially heavy metal pollution event frequently occurs in recent years, and production of the people to safety food is more paid attention to, livestock products quality
The quality safety of the source-herbage of security control also causes extensive social concerns, " food of the feed=safety of safety ",
" feed safety=food security " has worldwide turned into common recognition.
Therefore, the forage grass cultivation technique for carrying out the low cadmium of high yield is extremely urgent and significant with technique study.
The content of the invention
The purpose of the present invention is the method for the forage grass plantation that there are provided a kind of low cadmium of high yield, easy to implement the method, behaviour
Make easy, in the case where a cultivation condition with rye grass high-yield rotation system is herded in osmanthus, carry out soil conditioner and taken with the reasonable of organic fertilizer
Match somebody with somebody, reduce herbage cadmium content, improve the feed safety of herbage, while optimizing the quality with improved soil.
To achieve these goals, the present invention uses following technical measures：
A kind of method of the low cadmium forage grass cultivation of high yield, its step is as follows：
A, selection of land and site preparation：Selection draining easily, fertility mild or moderate cadmium pollution soil higher (soil cadmium content 0.3~
0.9mg/kg), using small-sized agricultural land Cultivator site preparation, small-sized machine or manually trench digging, railway carriage or compartment face 1.4~1.6m wide, furrow width 28~
32cm, 25~30cm of ditch depth, 2 rows (50~70cm of spacing in the rows) are herded per railway carriage or compartment Xue Zhong osmanthus, and the row of autumn and winter drilling rye grass 3~4 (is broadcast
Width 10cm).
B, pasture growing：Carry out osmanthus and herd work or a crop rotation and between rye grass, a First Year kind stem nursery breeding is herded in osmanthus
After transplant, the second season and can also take and stay the root and stem of certain plants to pass the winter later, rye grass is live.It is late March to May that a transplanting time is herded in osmanthus
In the first tenday period of a month, late September to early November harvesting osmanthus in every railway carriage or compartment osmanthus herds a both sides after herding No. one and two row osmanthus are herded a centre and opened
One, ditch, after fertilising earthing, the row of rye grass 1, the centre plantation row of rye grass 1~2 are respectively planted in railway carriage or compartment both sides.
C, rye grass fertilising：Ditched 25~30cm, bar liming or the kg/ of red mud 600~900 in rye grass planting location
hm2, and lime or red mud is mixed with soil in ditch, 22500~30000kg/hm of organic fertilizer again after 6~8 days2And composite fertilizer
450~750kg/hm2, rye grass, then lid 1~2cm of fine earth are sowed after 3~5cm of blinding, sprinkle water and keep ground moistening 10 days with
On.During 10~20cm of height of seedling 60~90kg/hm of urea is imposed with reference to weather2, in the ranks spread fertilizer over the fields or be watered prior to rye grass after cradling
Pour and apply 45~75kg/hm of urea2。
D, osmanthus herd a fertilising：Dig the cave that length is all 30~35cm, 600~900kg/hm of liming or red mud2,
And lime or red mud is stirred evenly with hoe with soil in ditch, lid 3~5cm fine earths, after 7 days again organic fertilizer 22500~
30000kg/hm2No. one is herded with osmanthus is transplanted behind 60~80g/ of composite fertilizer caves, then 10~15cm of lid fine earth, and watering makes soil wet
Thoroughly.120~150kg/hm of urea is imposed during 30~40cm of height of seedling2, spread manuer in holes or be watered to pour after cradling and apply 45~75kg/hm of urea2；
Stay the root and stem of certain plants to pass the winter to add a cover pigs and cattle excrement etc. on its root and stem of certain plants and carry out warming, antifreeze, getting fat after last time is cradled, annual production is carried out to improve
Lay a solid foundation.
E, herbage harvesting：Carry out cradling for the first time when rye grass 25cm is high, cut during 30~40cm of rye natural plant height later
Cut, toothing 5cm or so；Osmanthus herd an about 0.6~1m it is high when carry out for the first time cradle, to promote osmanthus to herd a tiller, thereafter may be used
Cradled in 1.5~2m, 10~15cm of toothing.In rye grass and the common growth period of number plantation of Gui Mu, should optionally add
Speed is cradled soon, reduces influence of the preceding season herbage to rear season herbage growth.
The organic fertilizer that described organic fertilizer is cow dung, chicken manure, pig manure become thoroughly decomposed, its content of organic matter is 400~600g/kg, N
Content is 20~40g/kg, P2O5Content is 20~60g/kg, K2O content is 20~60g/kg.
Cadmium in described organic fertilizer, lead, arsenic, mercury, chromium content respectively no more than 3mg/kg, 50mg/kg, 10mg/kg,
2mg/kg、50mg/kg；
Described composite fertilizer can be by buying on the market, and its total nutrient content is N:P2O5:K2O=15:15:15.
Cadmium in described composite fertilizer, lead, arsenic, mercury, chromium content respectively no more than 3mg/kg, 50mg/kg, 10mg/kg,
2mg/kg、50mg/kg；
Described urea can be by buying on the market.Cadmium in urea, lead, arsenic, mercury, chromium content respectively no more than 3mg/kg,
50mg/kg、10mg/kg、2mg/kg、50mg/kg；
The present invention compared with prior art, with advantages below and effect：
1st, using cultural method of the invention, make or crop rotation rye grass between herding season free time autumn and winter using osmanthus, carry
Land utilization ratio high, while also improving the coverage rate that No. one and Soil As Influenced By Ryegrass Plants are herded in osmanthus, reduces the growth of weeds, drop
The low labo r usage of weeding, improves economic benefit.
2nd, using cultivation technique of the invention, soil pH value can be effectively improved, improved soil is acid, using passivator with have
The Reasonable of machine fertilizer is applied, can effective improved soil quality, while reduction herbage cadmium content, it is ensured that Grass Quality safety.
Brief description of the drawings
Fig. 1 is a kind of rye grass yield comparison design sketch for carrying out field demonstration.
The rye grass total output of control treatment (CK) is 3737kg/hm2, and use the rye grass total output of (T) of the invention
It is 4882kg/hm2, than control volume increase 30.63%.
Fig. 2 is that a yield comparison design sketch is herded in a kind of osmanthus for carrying out field demonstration.
A total output is herded for 5040kg/hm in the osmanthus of control treatment (CK)2, and use the rye grass total yield of (T) of the invention
It is 6599kg/hm to measure2, than control volume increase 30.93%.
Fig. 3 is a kind of rye grass cadmium content contrast effect figure for carrying out field demonstration.
The average cadmium content of rye grass of control treatment (CK) is 0.26mg/kg, and uses the rye grass total yield of (T) of the invention
It is 0.19mg/kg to measure, and 27.33% is reduced than control.
Fig. 4 is that a cadmium content contrast effect figure is herded in a kind of osmanthus for carrying out field demonstration.
An average cadmium content is herded for 0.18mg/kg in the osmanthus of control treatment (CK), and uses the rye grass of (T) of the invention total
Yield is 0.11mg/kg, and 40.17% is reduced than control.
Specific embodiment
It is explained further the present invention with reference to embodiments, but embodiment does not do any type of limit to the present invention
It is fixed.
Embodiment 1：
A kind of method of the low cadmium forage grass cultivation of high yield, its step is as follows：
A, selection of land and site preparation：Selection draining is easy, mild or moderate cadmium pollution soil (the full cadmium content 0.3 of soil that fertility is higher
~0.9mg/kg), using small-sized agricultural land Cultivator site preparation, small-sized machine is ditched, railway carriage or compartment face 1.4m wide, furrow width 30cm, ditch depth 30cm,
2 rows (spacing in the rows 60cm), the row (sown scope 10cm) of autumn and winter drilling rye grass 4 are herded per railway carriage or compartment Xue Zhong osmanthus.
B, pasture growing：Carry out osmanthus and herd work or a crop rotation and between rye grass, osmanthus is transplanted after herding a kind stem nursery breeding,
Rye grass is live.Early April digs cave transplanting osmanthus at limes marginis 40cm and herds No. one, and per railway carriage or compartment, 2 rows, spacing in the rows 60cm are herded in plantation osmanthus；9
Month last ten-days period harvesting osmanthus is herded No. one and herds a both sides after every railway carriage or compartment osmanthus and trench digging 3 in the middle of No. is herded in osmanthus, and ditch depth 30cm, middle ditch is omited
Width, each row of live rye grass 1 after both sides ditch fertilising earthing plants the row of rye grass 2, line space 15cm after middle ditch fertilising earthing.
C, rye grass fertilising：Rye grass is ditched depth 30cm, bar liming or red mud 50kg/ mus, and make lime or red mud and
Soil is mixed in ditch, lid 3~5cm fine earths, organic fertilizer 22500kg/hm again after 7 days2With composite fertilizer 600kg/hm2, blinding 3~
Rye grass, then lid 1~2cm of fine earth are sowed after 5cm, ground moistening is sprinkled water and keep more than 10 days.Imposed during 10~20cm of height of seedling
Urea 60kg/hm2, cradle in the ranks to spread fertilizer over the fields again or be watered to pour after rye grass and apply urea 60kg/hm2。
D, osmanthus herd a fertilising：Dig the cave that length is all 30 or 33 or 35cm, liming or red mud 750kg/hm2,
And lime or red mud is mixed with soil in ditch, organic fertilizer 30000kg/hm again after 7 days2With composite fertilizer 60g/ caves, then cover thin
Osmanthus is transplanted after 10 or 13 or 15cm of soil and herds No. one, and watering makes soil drench.Urea 150kg/hm is imposed during height of seedling 40cm2, cut
Spread manuer in holes or be watered to pour again after cutting and apply urea 75kg/hm2；Stay the root and stem of certain plants to pass the winter after last time is cradled and pig, cow dung are added a cover on its root and stem of certain plants
Etc. carrying out warming, antifreeze, getting fat, carry out annual production and lay a solid foundation to improve.
E, herbage harvesting：Carry out cradling for the first time when rye grass 25cm is high, rye natural plant height 30 or 35 or enter during 40cm later
Row is cradled, each toothing 5cm or so；Osmanthus herd an about 0.6m it is high when carry out for the first time cradle, to promote osmanthus to herd a tiller, its
After can be cradled at 1.5 or 1.8 or 2m, toothing 10 or 13 or 15cm.In number plantation of autumn and winter rye grass and Gui Mu altogether
Growth period, should optionally accelerate to cradle speed, reduce influence of the preceding season herbage to rear season herbage growth.
Experimental example 1：
The implementation time：In May, -2014 in March, 2013.
Enforcement place：ChangSha, Hunan Province county Jin Jing towns proving ground, for the numb sand mud that examination soil is granite development, soil
PH5.05, organic matter 36.10gkg-1, full nitrogen 2.04gkg-1, full phosphorus 0.54gkg-1, full potassium 28.70gkg-1, alkaline hydrolysis
Nitrogen 150.00mgkg-1, rapid available phosphorus 7.20mgkg-1, available potassium 67.02mgkg-1, full dose cadmium 0.32mgkg-1。
Test material：Herd No. one and " bay " rye grass (offer of herding research institute of Hunan Province) in osmanthus
Experimental design：Experiment is control to apply chemical fertilizer (CK1) and application of organic fertilizers (CK2), sets low cadmium high yield herbage
(herding No. one/rye grass in osmanthus) cultivation technique processes (T1：Lime+organic fertilizer；T2：Red mud+organic fertilizer), totally 4 treatment, 3 weights
It is multiple, plot area 40m2.Test in addition to the Term Fertilization difference specified by treatment, remaining management is consistent.
Sampling and assay method：Process of the test gather in altogether osmanthus herd No. one 5 times, rye grass 4 times, field test is per cell fresh grass
Weight, osmanthus herd No. one per batch per cell taken in uniform 5 cave of growing way 3 tillers, rye grasses then take at random fresh grass 1kg baking
Cadmium content is determined after dry grinding is broken.
Interpretation of result：
As can be seen from Table 1, compared with chemical fertilizer is applied, No. one and rye grass are herded in the osmanthus processed using T1 of the invention and T2
Yield is all dramatically increased.No. one and rye grass total output are herded in T1 and T2 treatment osmanthus increases by 21.77% and 28.07% than CK1 respectively,
Wherein, a yield is herded in the osmanthus of T1 and T2 treatment increases by 19.65% and 22.37% than CK1 respectively, and rye Herbage harvest then increases respectively
Produce 27.34% and 42.99%.But the osmanthus of T1 and T2 treatment herd No. one and rye Herbage harvest all with the CK2 treatment of application of organic fertilizers
Yield without significant difference.
Herbage fresh weight (t/hm under the different cultural methods of table 12) and amplification (%)
Note：Same column difference minuscule represents significant difference between treatment in table, similarly hereinafter.
As can be seen from Table 2, number cadmium content of rye grass and Gui Mu using T1 of the invention and T2 treatment is all significantly low
In CK1 and CK2 treatment.A cadmium content is herded respectively than CK1 reductions by 20.53% and 24.57% in the osmanthus of T1 and T2 treatment, compares respectively
CK2 reductions by 18.17% and 22.33%；The rye grass cadmium content of T1 and T2 treatment is respectively than CK1 16.12% Hes of reduction
21.17%, respectively than CK2 reductions by 7.49% and 5.569%.
Herbage cadmium content (mg/kg) and the range of decrease (%) under the different cultural methods of table 2
Note：Data are calculated with dry weight in table, and rye grass cadmium content is 4 batches of average contents, and a cadmium content is herded for 5 batches are put down in osmanthus
Equal content.
As can be seen from Table 3, number soil pH for Growing season of rye grass and Gui Mu for being processed using T1 of the invention and T2
Value is all significantly higher than CK1 and CK2 treatment.The soil pH value that T1 and T2 a treatment for Growing season is herded in osmanthus is improved than CK1 respectively
0.54 and 0.43 unit, improves 0.66 and 0.55 unit than CK2 respectively；The soil of T1 and the T2 treatment in Ryegrass Growth season
PH value improves 0.50 and 0.35 unit than CK1 respectively, improves 0.51 and 0.36 unit than CK2 respectively.
The soil pH value and increment of GRASSES WITH DIFFERENT Growing season under the different cultural methods of table 3
Note：The soil pH minute of No. one is herded for August in 2013 24 days in plantation osmanthus, and rye grass is on March 18th, 2014.
Result above shows, the low cadmium high yield cultivating method of No. one/rye grass is herded using osmanthus of the invention, and applies chemical fertilizer phase
Than a volume increase more than 19.65%, rye grass volume increase more than 27.34%, total yield increase by more than 21.77% are herded in osmanthus；With administrationization
Fertilizer is compared, and a cadmium content reduction by more than 20.53%, rye grass cadmium content reduction by more than 16.12% are herded in osmanthus；With application of organic fertilizers
Compare, a cadmium content reduction by more than 18.17%, rye grass cadmium content reduction by more than 5.56% are herded in osmanthus, and use of the invention
Soil pH is all obviously improved than control and single organic fertilizer.It can be seen that, it is remarkably improved using pasture planting method of the invention
Forage yield, significantly reduces herbage cadmium content, improves the feeding property of safety of herbage, and improves soil pH, reduces soil acidification journey
Degree.
Experimental example 2：
The implementation time：In December, -2015 in March, 2013.
Enforcement place：ChangSha, Hunan Province county Beishan Mountain town proving ground, for the numb sand mud that examination soil is granite development, soil
PH4.89, organic matter 31.05gkg-1, full nitrogen 1.87gkg-1, full phosphorus 0.94gkg-1, full potassium 28.78gkg-1, alkaline hydrolysis
Nitrogen 148.25mgkg-1, rapid available phosphorus 10.28mgkg-1, available potassium 82.57mgkg-1, full dose cadmium 0.64mgkg-1。
Test material：Herd No. one and " bay " rye grass (offer of herding research institute of Hunan Province) in osmanthus
Experimental design：Experiment is control to apply chemical fertilizer (CK1), and 10 mu of area sets low cadmium high yield herbage (Gui Muyi
Number/rye grass) cultivation technique (T：Red mud+organic fertilizer) demonstration, demonstrate 100 mu of area.Experiment is except the fertilizer specified by treatment
Outside using difference, remaining management is identical.
Sampling and assay method：No. one is herded to osmanthus respectively in, in 2014 in 2015 in process of the test, rye grass is each takes out at random
Take 3 batches and determine yield and cadmium content.
Interpretation of result：
Rye grass yield result shows (Fig. 1), and using rye grass of the invention, average every batch is increased production 30.63% than control；
Osmanthus is herded a yield result and shows (Fig. 2), and No. one average every batch is herded than control volume increase 30.94% using osmanthus of the invention.Show
All there is significant effect of increasing production to rye grass and Gui Mu mono- using the present invention.
Rye grass cadmium content result shows (Fig. 3), and being compareed using rye grass cadmium content average specific of the invention is reduced
27.33%；Osmanthus is herded a cadmium content result and shows (Fig. 4), and herding a cadmium content average specific control using osmanthus of the invention reduces
40.17%.Show all have the effect for being significantly reduced cadmium content to rye grass and Gui Mu mono- using the present invention.
Claims (4)
1. the method that a kind of low cadmium forage grass of high yield is cultivated, its step is as follows：
A, selection of land and site preparation：Selection draining easily, fertility mild or moderate cadmium pollution soil higher (soil cadmium content 0.3~
0.9mg/kg), using farmland Cultivator site preparation, small-sized machine or manually trench digging, railway carriage or compartment face 1.4~1.6m wide, 28~32cm of furrow width,
25~30cm of ditch depth, 2 rows, 50~70cm of spacing in the rows, the row of autumn and winter drilling rye grass 3~4 are herded per railway carriage or compartment Xue Zhong osmanthus；
B, pasture growing：Carry out osmanthus and herd work or a crop rotation and between rye grass, osmanthus is moved after herding a First Year kind stem nursery breeding
Plant, the second season and later taking stay the root and stem of certain plants to pass the winter, and rye grass is live, and it is late March to the first tenday period of a month in May, September that a transplanting time is herded in osmanthus
The last ten-days period to early November harvesting osmanthus in every railway carriage or compartment osmanthus herds a both sides after herding No. one and a centre respectively trench digging one is herded in two row osmanthus, applies
After fertile earthing, the row of rye grass 1, the centre plantation row of rye grass 1~2 are respectively planted in railway carriage or compartment both sides；
C, rye grass fertilising：In rye grass planting location trench digging 25~30cm, 600~900kg/hm of bar liming or red mud2, and
Lime or red mud is set to be mixed with soil in ditch, 22500~30000kg/hm of organic fertilizer again after 6~8 days2With composite fertilizer 450~
750kg/hm2, rye grass, then lid 1~2cm of fine earth are sowed after 3~5cm of blinding, sprinkle water and keep ground moistening 10 days, height of seedling 10
During~20cm 60~90kg/hm of urea is imposed with reference to weather2, in the ranks spread fertilizer over the fields or be watered to pour prior to rye grass after cradling and apply urea 45
~75kg/hm2；
D, osmanthus herd a fertilising：Dig the cave that length is 30~35cm, 600~900kg/hm of liming or red mud2, make lime
Or red mud is stirred evenly with soil in ditch with hoe, lid 3~5cm fine earths, 22500~30000kg/hm of organic fertilizer again after 7 days2
No. one is herded with osmanthus is transplanted behind 60~80g/ of composite fertilizer caves, then 10~15cm of lid fine earth, and watering makes soil drench, height of seedling 30~
120~150kg/hm of urea is imposed during 40cm2, spread manuer in holes or be watered to pour after cradling and apply 45~75kg/hm of urea2；The root and stem of certain plants is stayed to pass the winter most
Adding a cover pigs and cattle excrement on its root and stem of certain plants after once cradling afterwards carries out warming, antifreeze, getting fat；
E, herbage harvesting：Carry out cradling for the first time when rye grass 25cm is high, cradled during 30~40cm of rye natural plant height later, stay
Stubble 5cm；Osmanthus herd a 0.6~1m it is high when carry out for the first time cradle, cradled in 1.5~2m, 10~15cm of toothing；
The organic fertilizer that described organic fertilizer is cow dung, chicken manure, pig manure become thoroughly decomposed, its content of organic matter is 400~600g/kg, N content
It is 20~40g/kg, P2O5Content is 20~60g/kg, K2O content is 20~60g/kg.
2. the method cultivated according to a kind of low cadmium forage grass of high yield of claim 1, it is characterised in that：In described organic fertilizer
Cadmium, lead, arsenic, mercury, the content of chromium are no more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg, 50mg/kg respectively；
3. the method cultivated according to a kind of low cadmium forage grass of high yield of claim 1, it is characterised in that：Its is total for described composite fertilizer
Nutrient content is N:P2O5:K2O=15:15:15；Cadmium in composite fertilizer, lead, arsenic, mercury, chromium content respectively no more than 3mg/kg,
50mg/kg、10mg/kg、2mg/kg、50mg/kg。
4. the method cultivated according to a kind of low cadmium forage grass of high yield of claim 1, it is characterised in that：Cadmium in described urea,
Lead, arsenic, mercury, the content of chromium are no more than 3mg/kg, 50mg/kg, 10mg/kg, 2mg/kg, 50mg/kg respectively.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108617425A (en) * | 2018-05-07 | 2018-10-09 | 江西省畜牧技术推广站 | A method of purifying copper zinc heavy metal element in pig manure using forage cultivating |
| CN109174936A (en) * | 2018-09-28 | 2019-01-11 | 湖南农业大学 | A method of the restoring cadmium polluted agricultural land soil of No.1 is herded using herbage osmanthus |
| CN113228871A (en) * | 2021-05-14 | 2021-08-10 | 中国科学院亚热带农业生态研究所 | Method for constructing fertile plough layer by planting Guimu No. I and application |
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| CN113228871B (en) * | 2021-05-14 | 2023-10-20 | 中国科学院亚热带农业生态研究所 | Method for constructing fertile plough layer by using Guimu first planting and application |
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