CN102845204B - Method for planting alfalfa in moderately severe carbonate saline-alkali soil on large scale - Google Patents
Method for planting alfalfa in moderately severe carbonate saline-alkali soil on large scale Download PDFInfo
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Abstract
The invention discloses a method for planting alfalfa in a moderately severe carbonate saline-alkali soil on a large scale. The method comprises the steps as follows: (1), broadcasting fully rotten a farming manure, diammonium phosphate and potassium sulfate on the surface of the moderately severe carbonate saline-alkali soil in the rainy season of from the sixth to the eighth months, and uniformly spraying coal-washing wastewater; (2), ploughing, leveling and irrigating the moderately severe carbonate saline-alkali soil; (3), selecting alfalfa seeds of a salt-tolerant and drought-resistant variety, and soaking the seeds by using ABT rooting powder; (4), covering the soaked alfalfa seeds with bactericides with alfalfa root nodule bacteria; (5), coating the alfalfa seeds covered with the bactericides; (6), sowing the coated alfalfa seeds into the moderately severe carbonate saline-alkali soil; and (7), after seedling emergence, carrying out field management. The method can be used for planting the alfalfa in the moderately severe carbonate saline-alkali soil on a large scale, and has the characteristics of high seedling emergence speed, high seedling percentage, simplicity for operation, suitability for mechanical operation, easiness in manual control and the like.
Description
Technical field
The present invention relates to grass cultivation planting technology field, saline land, specifically is a kind of middle saline and alkaline ground of severe carbonate alfalfa large-scale planting method.
Background technology
Saline-alkali soil is various solonchak, alkaline earth and other general name of all kinds soil of salinization and alkalization in various degree.The common trait of all types of saline-alkali soil is exactly to contain significant salt and alkali component in the soil body, the accumulation of salinity not only causes soil nutrient unbalance, and reduces soil permeability, causes the growths of most of plants to be subjected in various degree inhibition, even dead, bring adverse effect to agricultural production.Salinization of soil is the performance of soil degradation process, and its seriousness grows with each passing day, and oneself becomes a global resource problem and ecological problem, is subjected to global extensive concern.
The general soil salt content is solonchak more than 2g/kg, salt content what are pressed, and can be divided into slight solonchak, moderate solonchak and severe solonchak etc.Contain more exchangeable sodium in the alkaline earth soil colloid, have tangible natric horizon, be the strong basicity reaction, according to the height of soil pH, can be divided into slight alkaline earth, moderate alkaline earth and severe alkaline earth etc.
The carbonate salts alkaline earth is also referred to as soda saline-alkali soil, and characteristics are to contain more Na in surface soil layer
2CO
3And NaHCO
3, not containing or only contain other micro-lyotropic salt class, partly being adsorbed property sodium ion is saturated for the clay colloid.Contain soda more than 0.5 milliequivalent in the soluble salts of 100 gram soil are formed, pH is greater than 8.0 less than 9.5, salt content greater than 0.3% less than 0.8% soil, severe carbonate salts alkaline earth in the genus.Middle severe carbonate salts alkaline earth alkalescence is big, and physical arrangement is bad, bad hydraulic permeability, and the governance process difficulty is bigger.
In world's land resources total amount, saline-alkali soil occupies sizable share, and the gross area is 9.5438 hundred million hectares.The saline-alkali soil area of China is about 3.47 * 10
7Hm
2Occupy the world the 4th, it is also very extensive to distribute, wherein 23 provinces have the distribution of saline-alkali soil, and the area of relatively concentrating that distributes has: the Caidamu Basin in oceanfront, the Yellow River and Huai He River sea plain, song-Nen plain, Shan, Shanxi intermountain channel basin, Ningxia, Inner Mongol Hetao Plain, Qinghai Province, the Hexi Corridor in Gansu, the Junggar Basin in Xinjiang and the ground such as Qiangtang Plateau of Tarim Basin and Qinghai-Tibet.Saline-alkali soil is as a kind of resource, and China still has the saline land about 80% not obtain development and use as yet, and these saline and alkaline land resourcess of rational exploitation and utilization are important topics that the mankind face, and also are the inevitable requirements of human social.
In order to guarantee sustainable development, the ball ecological environment that protection is fragile, China comes into effect conceding the land to forestry and grass, afforests the engineering in deserted mountain, wasteland energetically, for the scale development pasture growing has been created condition in recent years.Alfalfa more belongs to perennial deep rooting plant because of it, and can consolidate soil, fixed nitrogen again and improve soil physical property and favored.
Alfalfa (Medicago sativa L.) is pulse family Papillionoideae clover, because of its grass yield height, be rich in characteristics such as protein, good palatability, adaptability is strong and be called as " king of herbage ".Alfalfa is perennial plant, general growth year can reach about 10 years, well developed root system, cauline leaf is in great numbers, summer, its dense branches and leaves can stop that rainwater washes away and surface runoff the physics of soil, and autumn and winter, cover degree height in the face of land can not make table soil be subjected to the erosion of strong wind, reduce dust storm content in the air, be described as " water is protected the pioneer " in the Loess Plateau Region of severe water and soil erosion.The prosperity of alfalfa root system is buried deeply, generally can reach 3-5 rice, the longest can reaching more than 10 meters, therefore can absorb the moisture of deep subsoil, drought-resistant ability is just very high naturally, and on the huge root system a large amount of root nodules of giving birth to, can carry out biological nitrogen fixation, 32.9 kilograms in every mu of about fixed nitrogen is equivalent to the ammonium sulfate of 2460kg, has improved soil fertility so greatly, this characteristic is highly beneficial to rotation of crops and grass, can significantly improve the yield and quality of succession crop, and reduce the input of fertilizer, reduce the environmental pollution that causes because of a large amount of fertilizer inputs.Alfalfa belongs to medium salt tolerant alkali herbage, can plant in a large number at slight salinization soil, but reach 0.5% when above when soil salt, and the growth of clover will be suppressed, and shows that growth retardation, vitality die down, output reduction etc.
A kind of cultivation method of alfalfa in low-salt and-alkali cultivated land is disclosed patent documentation 1(CN 101904265B); low and the problem such as yield poorly of emergence rate when being used for the saline land to solve existing alfalfa kind method for planting, but this method be difficult to be applicable in heavy salinized ground especially in the alfalfa large-scale planting on the saline and alkaline ground of severe carbonate.Effective case of the alfalfa of saline and alkaline ground of centering severe carbonate scale plantation both at home and abroad also seldom especially also lacks on soil treatment, seed treatment and raising emergence rate and gos deep into systematic research at present.
Summary of the invention
The object of the present invention is to provide the effective ways of a kind of middle saline and alkaline ground of severe carbonate alfalfa large-scale planting.
Particularly, method of the present invention is a kind of middle saline and alkaline ground of severe carbonate alfalfa large-scale planting method, it is characterized in that described method comprises the steps:
(1) the 6-8 rainy season month, spreads fertilizer over the fields farmyard manure, diammonium phosphate and the potassium sulphate that fully becomes thoroughly decomposed at the saline and alkaline ground surface of middle severe carbonate, and evenly spray the colliery coal washing waste water;
(2) centering severe carbonate plough saline and alkalinely, smooth and pour water;
(3) alfalfa seed of selection salt-tolerant drought-resistant kind is with the seed soaking of ABT root-inducing powder;
(4) alfalfa seed after seed soaking coats the microbial inoculum that contains rhizobium melioti;
(5) alfalfa seed that is coated with microbial inoculum is carried out dressing;
(6) alfalfa seed with dressing is seeded in the middle saline and alkaline ground of severe carbonate;
(7) carry out field management after emerging.
In the step (1), the farmyard manure consumption that fully becomes thoroughly decomposed is preferably 1000 kilograms/mu, and the diammonium phosphate consumption is preferably 50 kilograms/mu, and the potassium sulphate consumption is preferably 50 kilograms/mu, and colliery coal washing waste water consumption is preferably 3000 kilograms/mu.
Preferably at implementation step (1) 24h with interior implementation step (2), the degree of depth of ploughing in the step (2) is preferably 20-30 centimetre.
In the step (3), the concentration of ABT root-inducing powder is preferably 100mgABT root-inducing powder/kg water, and seed soaking time is preferably 3h.
In the step (4), the preferred Sinorhizobium meliloti of rhizobium melioti.
The technological process of step (4) is preferably as follows: the microbial inoculum that contains rhizobium melioti is joined in the sticker, after stirring, add alfalfa seed again, stir repeatedly, make and all be stained with microbial inoculum on each seed, the mass ratio of seed and microbial inoculum is 1:7-10.Wherein, the sticker of use be preferably be selected from sodium cellulose glycolate, sodium carboxymethylcellulose, sodium alginate, starch, gelatin, the gum Arabic more than a kind or 2 kinds.
The technological process of step (5) is preferably as follows: the alfalfa seed that is obtained by step (4) is put into the dressing machine, shake mixing repeatedly through the dressing machine, make each seed all wrap one deck coating material, at last seed is put in the ventilation, it is stand-by to dry in the shade.Wherein, described coating material be preferably be selected from talcum powder, mica powder, the potter's clay powder more than a kind or 2 kinds.
In the step (6), it is as follows preferably to sow condition: seeding method is drilling, and seeding quantity is 1.5-2 kilogram/mu, and sowing depth is 1-2 centimetre.
The present invention can effectively carry out the alfalfa large-scale planting at middle severe carbonate saline and alkalinely; have that alfalfa is emerged soon, planting percent is high, simple to operate, be suitable for mechanized operation, be easy to characteristics such as artificial grasps, severe carbonate provides effective ways saline and alkalinely for the large tracts of land reparation and in developing.
Description of drawings
Fig. 1 is the flow chart of expression embodiment of the invention concrete steps.
Embodiment
In the alfalfa process of growth, the different developmental stage is also different to the reaction of soil salt, generally the growth salt tolerant alkalescence along with strain age improves gradually, sprouting stage and seedling stage with seed are the most responsive to the reaction of soil salt, therefore create relative low salt concentration environment in seed germination phase and seedling planting phase and alfalfa are successfully planted very crucial.The present invention is based on this technological thought, the mode of utilizing amendement (farmyard manure+phosphate fertilizer+potash fertilizer+colliery coal washing waste water) and rainy season to sow is created the low-salt environment of alfalfa seed sprouting and growth of seedling.In addition, the present invention is by handling (root-inducing powder seed soaking+rhizobium coating+dressing) to the alfalfa seed of salt-tolerant drought-resistant kind, improved the ability that seed self adapts to the saline and alkaline ground of carbonate, for the normal growth in sprouting, growth of seedling and the later stage of alfalfa seed has been created strong condition.
This shows that the present invention is a kind of effective ways in saline and alkaline ground of middle severe carbonate large-scale planting alfalfa, the effective utilization that can be the saline and alkaline ground of Developing of Animal Industry and middle severe carbonate provides strong technical support.
Particularly, the invention provides a kind of middle saline and alkaline ground of severe carbonate alfalfa large-scale planting method, it is characterized in that described method comprises the steps:
(1) the 6-8 rainy season month, spreads fertilizer over the fields farmyard manure, diammonium phosphate and the potassium sulphate that fully becomes thoroughly decomposed at the saline and alkaline ground surface of middle severe carbonate, and evenly spray the colliery coal washing waste water;
(2) centering severe carbonate plough saline and alkalinely, smooth and pour water;
(3) alfalfa seed of selection salt-tolerant drought-resistant kind is with the seed soaking of ABT root-inducing powder;
(4) alfalfa seed after seed soaking coats the microbial inoculum that contains rhizobium melioti;
(5) alfalfa seed that is coated with microbial inoculum is carried out dressing;
(6) alfalfa seed with dressing is seeded in the middle saline and alkaline ground of severe carbonate;
(7) carry out field management after emerging.
Step (1) is by amendement and take full advantage of the convenience that 6-8 soil salt in the rainy season month is few, moisture is sufficient, for saline and alkaline ground of middle severe carbonate large-scale planting alfalfa provides necessary soil condition.
The farmyard manure that fully becomes thoroughly decomposed, phosphate fertilizer, potash fertilizer can improve soil physico-chemical property (soil pore space of having stopped up as mediation, improve soil permeability), increase soil fertility (increasing the soil organic matter, nitrogen, phosphorus, potassium and oxygen content) and also regulate soil pH (reduction soil pH value).Wherein, the farmyard manure consumption that fully becomes thoroughly decomposed is generally 800-1200 kilogram/mu, preferred 1000 kilograms/mu; The diammonium phosphate consumption is generally 30-70 kilogram/mu, preferred 50 kilograms/mu; The potassium sulphate consumption is generally 30-70 kilogram/mu, preferred 50 kilograms/mu.
The colliery coal washing waste water is to contain acids, pH value less than 6 waste water, be modal a kind of waste water in the industrial wastewater, spray the colliery coal washing waste water can in and the carbonate in saline and alkaline ground of the carbonate soil, significantly reduce soil pH value, and the cinder that exists in the coal washing waste water of colliery also helps the soil stickiness that reduces the saline and alkaline ground of carbonate, improves soil structure.Wherein, colliery coal washing waste water consumption is generally 2000-4000 kilogram/mu, preferred 3000 kilograms/mu.The colliery coal washing waste water is the industrial tail water of colliery wet process coal cleaning processing technology, has been one of primary pollution source of coal industry, enters external environment under the condition of not carrying out any suitable processing, can cause severe contamination to environment undoubtedly.The present invention has not only taken full advantage of the character of saline and alkaline ground of severe carbonate soil pH during the colliery coal washing waste water can reduce, and alleviated the colliery coal washing waste water to the pollution of ambient water environment, avoided because of the processing of colliery coal washing waste water with reclaim the problems such as Financial cost raising that cause, be effective ways that meet contemporary low-carbon environment-friendly theory, it is applied and will have remarkable economic efficiency and environmental benefit.
The basic reason that saline-alkali soil forms is that water regime is bad, arid, semiarid zone in China, because precipitation is little, evaporation discharge is big, the salinity that is dissolved in the water gathers at upper soll layer easily, forms saline-alkali soil.Summer, 6-8 month rainwater was many and concentrate, and great amount of soluble salt is seeped into lower floor with water or flows away, and Here it is " desalination " season.The present invention is in the alfalfa planting process, take into full account the water salt characteristics of motion of saline land arid biogeographic zone, sow the good environment that is conducive to create required low salt in seedling stage, high-moisture the rainy season month at 6-8, increase seed germination rate and seedling percent, realize seedling success planting.
Preferably the colliery coal washing waste water spray back 24 hours with interior to soil plough, smooth and pour water (step (2)), wherein plough the degree of depth and be generally 20-30 centimetre, preferred 20 centimetres.
Step (3)-(5) are by handling alfalfa seed, for saline and alkaline ground of middle severe carbonate large-scale planting alfalfa provides necessary seed condition.
Alfalfa is than salt tolerant alkali herbage, but the salt tolerant alkali degree difference between the different cultivars is very big, therefore selects to adapt to the drough-resistant and saline-alkali resistant kind of this soil condition in step (3), as No. one, middle lucerne, WL323, golden queen, No. one, public farming, No. two, public farming etc.In addition, the ABT root-inducing powder can promote the synthetic of large biological molecule, the formation of inducing plant adventive root or indefinite bud by strengthening, regulate and control the content of plant endogenous hormones and the activity of important enzyme, regulate plant metabolism intensity, reach the purpose that improves survival rate of seedling and crop yield, quality and resistance.Preferably ABT root-inducing powder (preferred No. 4) is made into the solution of 100mg root-inducing powder/kg water, alfalfa seed is placed in the solution soaks the preferred 3h of soak time.
Rhizobium melioti is a class Gram-negative bacteria that forms root nodule with the clover symbiosis and airborne nitrogen reduction ammonification is supplied plant nutrition.In the step (4), by rhizobium melioti is coated on the alfalfa seed, can promote growth and the fixed nitrogen of alfalfa root system.As rhizobium melioti, preferred Sinorhizobium meliloti (Sinorhizobium meliloti).
Concrete technology to step (4) is not particularly limited, but preferably makes with the following method: the microbial inoculum that contains rhizobium melioti is joined in the sticker, after stirring, add alfalfa seed again, stir repeatedly, make and all be stained with microbial inoculum on each seed.The mass ratio of seed and microbial inoculum is preferably 1:7-10, more preferably 1:8.By using this method, rhizobium melioti can adhere on the seed by the effect of sticker securely, in the sowing process, be difficult for coming off from seed, after planting rhizobium melioti can be effectively distributes, breeds along the root system of alfalfa, thereby provides sufficient nutrient for the growth of alfalfa.
The sticker that uses is not particularly limited, but preferred hydrophilic or absorptive sticker, for example sodium cellulose glycolate, sodium carboxymethylcellulose, sodium alginate, starch, gelatin, gum Arabic etc.After seed is broadcast in the soil, hydrophily/absorptive sticker simultaneously as a kind of hydrophilic/absorbent material, can absorb the moisture in the soil, promote the sprouting of alfalfa seed, and the facilitation by root-inducing powder, the alfalfa seed that the germinates growth of can taking root very soon, rhizobium form root nodule at root growth simultaneously, and the promotion nitrogen fixation forms fast.Good hydrophilicity or absorptive sticker can increase substantially seeding ratio and survival rate of seedlings continuously for seed, seedling provide moisture, and then guarantee the validity of large-scale planting.
Concrete technology to step (5) is not particularly limited, but preferably make with the following method: the alfalfa seed that is obtained by step (4) is put into the dressing machine, shake mixing repeatedly through the dressing machine, make each seed all wrap one deck coating material, at last seed is put in the ventilation, it is stand-by to dry in the shade.By using this method, coating material is wrapped on the outer microbial inoculum that adheres to of seed equably, thereby has more effectively improved the compound action between microbial inoculum and the seed.Wherein, the coating material that uses is not particularly limited, can enumerates talcum powder, mica powder, potter's clay powder etc., but from extensive, the low-cost angle of material source, the preferably talc powder.
The sowing condition of step (6) is preferably as follows: seeding method drilling, seeding quantity are 1.5-2 kilogram/mu, and sowing depth is 1-2 centimetre.
Field management in the step (7) refers to pour water timely, weed control and extermination of disease and insect pest etc.
In sum; the present invention is under the triple role of soil melioration, sowing in rainy season and seed treatment; can significantly improve emergence rate, survival rate of seedlings and the planting percent of seed; have simultaneously simple to operate, be suitable for mechanized operation, be easy to characteristics such as artificial grasp, can effectively carry out the alfalfa large-scale planting at middle severe carbonate saline and alkalinely.In addition, the present invention has also taken full advantage of the character of saline and alkaline ground of severe carbonate soil pH during the colliery coal washing waste water can reduce, avoided because of the processing of colliery coal washing waste water with reclaim the problems such as Financial cost raising that cause, it is applied and will have remarkable economic efficiency and environmental benefit.
Embodiment
The following examples can make those of ordinary skill in the art more fully understand the present invention, but do not limit the present invention in any way.
Experiment analytical method adopts " clover emerges and the engineering test of keeping a full stand of seedings in the moderate saline land " (Shandong animal and veterinary, 2010 31 the 7th phases of volume, 6-7 page or leaf).
Concrete steps following (as shown in Figure 1):
1. the saline and alkaline reason that is located in of middle severe carbonate: sample plot is chosen in the village that advances, Keshiketeng Banner Tu Chengzi town, Chifeng City, the Inner Mongol, soil average pH in this area's is 8.9, soil salt content is 0.62%, about 1000 square metres of sample plot area, spread fertilizer over the fields 1000 kilograms/mu of the farmyard manures that fully become thoroughly decomposed on August 5th, 2010,50 kilograms/mu of diammonium phosphate, 50 kilograms/mu of potassium sulphates, and evenly spray 3000 kilograms/mu of colliery coal washing waste waters.
2. soil cultivation: carry out 20 centimetres plough, smooth and pour water.
3. select the alfalfa seed of salt-tolerant drought-resistant kind: 3 kilograms in alfalfa of middle lucerne (Medicago sativa L.cv.Zhongmu NO.1) seed (available from Jiuquan great cause kind industry Co., Ltd) of selecting maturation, full, free from insect pests for use, after in the clear water of normal temperature, cleaning, dry under the natural conditions.
4. ABT root-inducing powder seed soaking: (available from the refreshing rain bio tech ltd in Henan) 5 restrains to get the ABT root-inducing powder No. 4, is made into the solution of 100mgABT root-inducing powder/kg water, alfalfa seed is placed in the solution soaks, and soak time is 3h.
5. strain culturing and microbial inoculum are made: get Sinorhizobium meliloti (Sinorhizobium meliloti) (available from Shanghai Ai Yan bio tech ltd), after shaking table is cultivated 48h in the YMA liquid nutrient medium under 28 ℃ the condition, obtain Rhizobium Inoculant.
6. coat microbial inoculum: sticker uses sodium cellulose glycolate, getting above-mentioned microbial inoculum (about 24000 gram), to join mass concentration be in 5% the sodium cellulose glycolate aqueous solution (5000ml), after stirring, to add seed again, stir repeatedly, make each seed all be stained with microbial inoculum.
7. seed pelleting: coating material is talcum powder, the above-mentioned seed that is stained with microbial inoculum put into be equipped with in the talcous dressing machine, shake the mixing dressing repeatedly through the dressing machine, make each seed all wrap one deck coating material, at last seed is put in the ventilation, it is stand-by to dry in the shade.
8. sowing: on August 8th, 2010 is with the alfalfa seed sowing of dressing, bar shaped sowing, 2 kilograms/mu of seeding quantitys, sowing depth 1-2 centimetre.
9. field management: in time pour water after emerging, weed control and the extermination of disease and insect pest.
The detection analysis result is as follows:
Get 10 samples at random on September 5th, 2010 and carry out the emergence rate analysis, each sampling point length 1m, measuring and calculating seedling number calculates percentage, and the alfalfa emergence rate on average reaches 82.7%, and alfalfa average emergence rate in experiment contrast district (non-processor) is 37.4%; Get 5 samples at random on September 30th, 2010 and carry out the survival rate of seedlings analysis, each sampling point length 1m, measuring and calculating seedling number calculates percentage, and the alfalfa survival rate of seedlings on average reaches 74.2%, and alfalfa average survival rate of seedlings in experiment contrast district (non-processor) is 23.8%; Get 5 samples at random on June 10th, 2011 and carry out the planting percent analysis; each sampling point length 1m; measuring and calculating seedling number; calculate percentage; the alfalfa planting percent on average reaches 62.6%; alfalfa average planting percent in experiment contrast district (non-processor) is 18.5%, illustrates that method of the present invention can guarantee effectively that alfalfa carries out large-scale planting at middle severe carbonate saline and alkalinely.
Claims (1)
1. saline and alkaline ground of severe carbonate alfalfa large-scale planting method in a kind is characterized in that described method comprises the steps:
(1) the 6-8 rainy season month, spreads fertilizer over the fields 50 kilograms/mu of 50 kilograms/mu of 1000 kilograms/mu of farmyard manures, the diammonium phosphate of fully becoming thoroughly decomposed and potassium sulphates at the saline and alkaline ground surface of middle severe carbonate, and evenly spray 3000 kilograms/mu of colliery coal washing waste waters;
(2) implementation step (1) 24h with interior centering severe carbonate plough saline and alkalinely, smooth and pour water, ploughing the degree of depth is 20-30 centimetre;
(3) alfalfa seed of selection salt-tolerant drought-resistant kind is the ABT root-inducing powder seed soaking 3h of 100mg ABT root-inducing powder/kg water with concentration;
(4) alfalfa seed after seed soaking coats the microbial inoculum that contains Sinorhizobium meliloti, technological process is as follows: the microbial inoculum that contains rhizobium melioti is joined in the sticker, after stirring, add alfalfa seed again, stir repeatedly, make and all be stained with microbial inoculum on each seed, the mass ratio of seed and microbial inoculum is 1:7-10, described sticker be selected from sodium cellulose glycolate, sodium carboxymethylcellulose, sodium alginate, starch, gelatin, the gum Arabic more than a kind or 2 kinds;
(5) alfalfa seed that is coated with microbial inoculum is carried out dressing, technological process is as follows: the alfalfa seed that is obtained by step (4) is put into the dressing machine, shake mixing repeatedly through the dressing machine, make each seed all wrap one deck coating material, at last seed is put in the ventilation, it is stand-by to dry in the shade, described coating material be selected from talcum powder, mica powder, the potter's clay powder more than a kind or 2 kinds;
(6) alfalfa seed with dressing is seeded in the middle saline and alkaline ground of severe carbonate, and seeding method is drilling, and seeding quantity is 1.5-2 kilogram/mu, and sowing depth is 1-2 centimetre;
(7) carry out field management after emerging.
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| CN103460946A (en) * | 2013-09-18 | 2013-12-25 | 南京大学连云港高新技术研究院 | Method for improving survival rate of kosteletzkya virginica planted in seaside saline soil |
| CN106258389A (en) * | 2015-05-05 | 2017-01-04 | 曾莉 | The method utilizing interplanting improvement salt affected soil and the method softening water planting culture fluid |
| CN107027479A (en) * | 2017-04-21 | 2017-08-11 | 中国科学院东北地理与农业生态研究所 | The live broadcasting method that severe soda alkaline land field alfalfa is colonized in a kind of raising |
| CN107135764A (en) * | 2017-05-05 | 2017-09-08 | 甘肃亚盛田园牧歌草业集团有限责任公司 | A kind of salt-soda soil Alfalfa Growing technology |
| CN107711397A (en) * | 2017-10-30 | 2018-02-23 | 潍坊友容实业有限公司 | Plant alfalfa and the method for improveing clay fertilizer situation in salt-soda soil |
| CN108651205A (en) * | 2018-03-27 | 2018-10-16 | 山东省农业可持续发展研究所 | A kind of salt-soda soil clover planting and establishing method |
| CN110447476A (en) * | 2019-07-22 | 2019-11-15 | 中国农业科学院草原研究所 | A kind of the Northwest heavy salinized ground alfalfa seed implantation methods |
| CN112166988A (en) * | 2020-08-25 | 2021-01-05 | 中国农业科学院草原研究所 | Planting method of alfalfa rich in trace elements |
| CN113973654A (en) * | 2021-11-05 | 2022-01-28 | 宁夏农林科学院农业资源与环境研究所（宁夏土壤与植物营养重点实验室） | Method for improving emergence rate of alfalfa planting in moderate saline-alkali soil in northern arid area |
| CN114651552B (en) * | 2022-04-26 | 2023-05-26 | 清华大学 | Quick recovery method for vegetation in saline-alkali soil |
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