CN113896587B - Organic-inorganic compound fertilizer for increasing proportion of leymus chinensis and fertilizing method thereof - Google Patents

Organic-inorganic compound fertilizer for increasing proportion of leymus chinensis and fertilizing method thereof Download PDF

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CN113896587B
CN113896587B CN202111204131.8A CN202111204131A CN113896587B CN 113896587 B CN113896587 B CN 113896587B CN 202111204131 A CN202111204131 A CN 202111204131A CN 113896587 B CN113896587 B CN 113896587B
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fertilizer
leymus chinensis
ammonium molybdate
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CN113896587A (en
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潘庆民
孙佳美
刘伟
王璟
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Institute of Botany of CAS
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    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B7/00—Fertilisers based essentially on alkali or ammonium orthophosphates
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01C—PLANTING; SOWING; FERTILISING
    • A01C21/00—Methods of fertilising, sowing or planting
    • A01C21/005—Following a specific plan, e.g. pattern
    • 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
    • A01G20/00—Cultivation of turf, lawn or the like; Apparatus or methods therefor
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Abstract

The invention relates to the field of restoration of degraded natural grassland, in particular to an organic-inorganic compound fertilizer for improving the proportion of leymus chinensis and a fertilizing method thereof. The compound fertilizer is applied by using the fertilizing method in the nutritional breeding peak period of the leymus chinensis, organic matters, nitrogen, phosphorus and trace elements required by the propagation of the leymus chinensis are supplemented, and the propagation of underground rhizomes of the leymus chinensis is promoted. The invention can obviously improve the biomass on the degenerated grassland, the biomass of the leymus chinensis, the proportion of the leymus chinensis and the density of the leymus chinensis.

Description

Organic-inorganic compound fertilizer for increasing proportion of leymus chinensis and fertilizing method thereof
Technical Field
The invention relates to the field of restoration of degraded natural grassland, in particular to an organic-inorganic compound fertilizer for improving the proportion of leymus chinensis and a fertilizing method thereof; the method adds the fertilizer in the nutritional propagation peak period of the leymus chinensis, and promotes the propagation of underground rhizomes of the leymus chinensis.
Background
The Leymus chinensis (Leymus chinensis) is perennial rooting stem type grass with wide tolerance, is suitable for being used as a mowing grassland and a grazing utilization, and has high yield of green substances and excellent feeding quality. The Chinese wildrye has the advantages of high nutritive value, good palatability, grazing resistance and the like, is a high-quality forage grass for livestock, has the content of crude protein reaching 5 to 20 percent, and has high economic value in animal husbandry production.
And the quality of the grassland is reduced due to extensive grazing and management for a long time and a large amount of nutrients such as nitrogen, phosphorus and the like are taken away. The Chinese wildrye is used as a colonization species of the Renbeberg grassland, the proportion of the Chinese wildrye is gradually reduced, and the number of Chinese wildrye propagules is also gradually reduced.
The fertilizer can provide nutrients required by plant growth, maintain crop nutrients, maintain soil fertility, update soil organic matters, promote microbial propagation and enhance the water and fertilizer retention capacity of soil. N, P nutrient addition has become the most effective and rapid important way to improve vegetation productivity.
Research on nutrient addition and settlement experiments shows that increasing the supply of nutrients such as N, P can increase the primary productivity of vegetation, but at the same time, the structure and function of the flora are changed, and the loss of species is often accompanied. Excessive nutrient addition can even produce a toxic effect on plant growth and inhibit the accumulation of community biomass. And when plants of multiple species or functional groups are included in the natural community, their effects of nutrient addition are not equal.
Disclosure of Invention
The invention aims to provide an organic-inorganic compound fertilizer for improving the proportion of natural grassland leymus chinensis, and also aims to provide a method for increasing underground rhizome propagation of leymus chinensis, so as to improve the aboveground biomass, the leymus chinensis biomass and the leymus chinensis density of a degraded grassland, increase the proportion of the leymus chinensis for recovering the grassland, effectively recover the degraded grassland and further improve the economic benefit of the natural grassland.
The main breeding mode of the Chinese wildrye population is underground vegetative propagation, so the growth of the underground vegetative propagules has great influence on the breeding of the Chinese wildrye population, and the key factor for restoring the Chinese wildrye in natural degraded grassland is to increase the Chinese wildrye propagules. Nitrogen is an essential element for the growth, development and propagation of plants, and is an extremely important nutrient limiting factor for the growth of grassland vegetation.
In the prior art, in order to avoid the inhibition effect of nitrogen and other elements, a small amount of nitrogen fertilizer and other fertilizers are often applied to the leymus chinensis in the vigorous growth season (7 months), so that the applied fertilizers do not reach the limiting threshold value, and the growth promotion effect of the leymus chinensis is achieved.
According to the method, by changing the fertilization time and the proportion of organic matters, nitrogen, phosphorus and trace elements, the nitrogen limitation and the limitation of single element of the growth of the leymus chinensis are removed, the nutritional propagation of the leymus chinensis is promoted to the maximum extent, and the leymus chinensis proportion of the deteriorated grassland is increased.
In order to realize the purpose of the invention, the following technical scheme is provided:
in a first aspect, the invention provides a Chinese wildrye compound fertilizer, which comprises a naturally decomposed organic fertilizer, a nitrogen fertilizer, a phosphorus fertilizer, a zinc fertilizer and a molybdenum fertilizer; the application time of the compound fertilizer is 3 Laetil.
The invention discovers that the dosage of the nitrogen fertilizer has obvious influence on the growth of the leymus chinensis, the dosage of the nitrogen fertilizer is less, so that necessary nitrogen source nutrition can not be provided for the propagation of the underground rhizomes of the leymus chinensis, the dosage of the nitrogen fertilizer is more, the cost can be obviously increased, but the effect can not be effectively improved, so that the proper and reasonable application of the nitrogen fertilizer is selected, and the key effect is played in the propagation of the underground rhizomes of the leymus chinensis. Through repeated screening of a large number of experiments, the invention discovers that the low-cost investment can be realized and the number of propagules of underground rhizomes of the leymus chinensis can be maximally promoted by selecting 12-12.5 kilograms of nitrogen fertilizer and supplementing phosphate fertilizer and trace elements for each mu of grassland.
In the inorganic-organic compound fertilizer provided by the invention, the naturally fermented and decomposed fertilizer comprises the following components in percentage by mass: nitrogen fertilizer: a phosphorus fertilizer: zinc fertilizer: the molybdenum fertilizer is (800- & ltSUB & gt 1000-): (12-12.5): (12-12.5): (1.5-2): (0.15-0.2).
Wherein the mass of organic matters of the naturally fermented decomposed fertilizer is more than or equal to 25 percent, and the mass of nitrogen, phosphorus and potassium is more than or equal to 3 percent; preferably, the naturally decomposed fertilizer is sheep manure; the nitrogen fertilizer is urea (CO (NH) 2 ) 2 ) The phosphorus fertilizer is diammonium phosphate (N18: p 2 O 5 46) The zinc element fertilizer is zinc sulfate (ZnSO) 4 ) The molybdenum fertilizer adopts ammonium molybdate (H) 8 MoN 2 O 4 )。
The zinc can remarkably promote the transportation and distribution of nitrogen elements to nutritive organs of stems, leaves and roots, promote the physiological metabolism of nitrogen, increase the protein content, and simultaneously, the application of zinc fertilizer can maintain the balance state of trace elements of the pasture, improve the absorption and utilization efficiency of plants on elements such as aluminum, cadmium, cobalt, iron, magnesium, nickel, titanium, zinc and the like, thereby promoting the yield increase of the pasture; the molybdenum fertilizer is an indispensable key element in the assimilation process of nitrate in plants and the process of converting molecular nitrogen in the atmosphere into nitrogen in a nitride state which can be absorbed by plants; both are trace elements for supplementing plants, thereby promoting the absorption and utilization efficiency of the plants on nutrients.
In the invention, the addition of zinc sulfate and ammonium molybdate improves the absorption efficiency of plants to major elements of nitrogen fertilizer and phosphate fertilizer; and the effect obtained by spraying the ammonium molybdate solution twice outside the roots is the best, and if the ammonium molybdate solution is excessively sprayed, the absorption and utilization efficiency of the plants on nutrients is reduced.
The decomposed sheep manure is preferably selected in the invention: urea: diammonium phosphate: zinc sulfate: the mass ratio of ammonium molybdate is (800- & ltSUB & gt 1000-): (12-12.5): (12-12.5): (1.5-2): (0.15-0.2).
In one embodiment of the invention, the decomposed sheep manure: urea: diammonium phosphate: zinc sulfate: the mass ratio of ammonium molybdate is 1000: 12: 2: 0.15.
The specific fertilizing amount is as follows: 800 kg/mu of naturally fermented and decomposed sheep manure, 12-12.5 kg/mu of urea, 12-12.5 kg/mu of diammonium phosphate, 1.5-2 kg/mu of zinc sulfate and 0.15-0.2 kg/mu of ammonium molybdate.
In a second aspect, the invention provides a method for promoting the propagation of underground rhizomes of leymus chinensis, which utilizes the compound fertilizer to fertilize degraded grassland to be restored, and comprises the following steps: throwing sheep manure by using a fertilizer throwing machine in the tillering stage of the aegilops about 3 months; performing no-tillage fertilization on the uniformly stirred urea, diammonium phosphate and zinc sulfate by using a seeder; and spraying ammonium molybdate aqueous solution twice outside the grassland roots; preferably, the spraying time of the ammonium molybdate aqueous solution is applied at the beginning of the seedling stage and the flowering stage of the leymus chinensis; more preferably, the aqueous ammonium molybdate solution is sprayed twice.
The specific fertilization method comprises the following steps: fertilizing at the tillering stage of the leymus chinensis; wherein 12 kg/mu of urea, 12 kg/mu of diammonium phosphate and 2 kg/mu of zinc sulfate are uniformly mixed, and a seeder is used for no-tillage fertilization; spreading and fertilizing 1000 kg/mu of naturally decomposed sheep manure by using a fertilizer spreading machine; the concentration of the ammonium molybdate aqueous solution is 0.05-0.10%, and the ammonium molybdate aqueous solution is sprayed outside roots, and is sprayed twice outside the roots of the Chinese wildrye from the seedling stage to the prophase of flowers.
In a third aspect, the invention provides a formulation comprising the above compound fertilizer.
In a fourth aspect, the invention provides the above compound fertilizer, and the use of a formulation containing the compound fertilizer for enhancing grassland productivity, improving grassland community structure, enhancing pasture quality or increasing the proportion of guinea grass in a grassland.
The invention has the beneficial effects that:
the compound fertilizer of the invention improves the utilization rate of the Chinese wildrye to the fertilizer, removes the limit of the Chinese wildrye in the utilization of nitrogen fertilizer, effectively improves the productivity of deteriorated grasslands and the ratio of the Chinese wildrye in natural grasslands, and compared with a blank control sample plot, the aboveground biomass of a treatment sample plot is improved by 181.6 percent, the ratio of the Chinese wildrye is improved by 254.6 percent, the height of the Chinese wildrye is improved by 47.5 percent, the density of the Chinese wildrye is improved by 567.7 percent, and the crude protein content of the Chinese wildrye is increased by 0.7 to 1 percent.
Drawings
Fig. 1 is an aerial photography effect diagram in embodiment 1 of the present invention.
FIG. 2 is a graph showing the recovery effect of Leymus chinensis in example 1 of the present invention.
Detailed Description
The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention, and experimental materials are commercially available.
And (3) preparation of the compound base fertilizer. Preparing an inorganic fertilizer: preparing 12kg of urea and 12kg of diammonium phosphate, and uniformly mixing the prepared inorganic fertilizer for later use; preparing a naturally decomposed fertilizer: preparing 1000kg of completely decomposed sheep manure; preparing a trace element fertilizer: 2kg of zinc sulfate fertilizer is prepared and evenly mixed with inorganic fertilizer to prepare 0.05-0.1 percent ammonium molybdate aqueous solution.
Experimental plot information. The experimental sample plot is located in a natural grassland restoration demonstration area of a certain farming pasture in an inner Mongolia autonomous region, and the grassland is an enclosed grassland.
Example 1
The test area is 20 meters wide and 50 meters long. Each process was set to 3 replicates. The experiment starts at the tillering stage of the leymus chinensis, and the specific operation time is from 3 months and 30 days in 2018 to 8 months and 20 days in 2018. Fig. 1 shows aerial photographs of a treatment group and a control group which were fertilized with the compound fertilizer provided in this example. The darker shaded areas in the figure are the recovered areas of the grassland of guinea grass obtained using the compound fertilizer treatment provided in this example; the recovery zone was flanked by blank control zones. Fig. 2 is a graph of the effect of the Chinese wildrye recovery after the compound fertilizer provided by the embodiment is applied for fertilization.
(1) And (3) compound fertilizer application treatment:
fertilizing time: 3, month and 30 days;
the fertilizer application mode and the compound fertilizer formula are as follows: inorganic fertilizer is evenly mixed and is applied in a no-tillage way by using a seeder, and the naturally decomposed sheep manure is applied in a throwing way by using a fertilizer throwing machine, and both the inorganic fertilizer and the fertilizer are evenly distributed in an experimental treatment area. 12 kg/mu of mixed inorganic fertilizer, 1000 kg/mu of naturally decomposed fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate are applied to each treatment area to prepare an ammonium molybdate aqueous solution with the concentration of 0.05 percent.
(2) Collecting plant data:
collecting time: about 8 months and 20 days in the same year;
the collection method comprises the following steps: in each experimental area, 1 sample prescription with the size of 1 m multiplied by 1 m is arranged, and the recovery effect of the leymus chinensis in the grassland is achieved. Collecting the height, the plant clump number and the species number of each species in a sample; collecting according to species, collecting the aboveground biomass of all communities, bringing the aboveground biomass back to a laboratory for drying, weighing and recording. The plant data acquisition results are shown in table 1.
(3) Blank control:
the test area is 20 meters wide and 50 meters long. Each treatment was set to 3 replicates, no compound fertilizer application was performed, and the same plant data collection method as in example 1 was used to collect plant data on 8 months and 20 days of the year, with the resulting plant data information shown in table 1.
TABLE 1 recovery of degraded Natural grassland by Compound Fertilizer application
Figure BDA0003306225470000051
Figure BDA0003306225470000061
Example 2 Effect of different fertilization times on the proportion of leymus chinensis
This example provides a search for different fertilization times and the results are shown in table 2.
Firstly, fertilizing time: month 3 to 30
The fertilizer application formula comprises: 12 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, wherein the ammonium molybdate solution with the concentration of 0.05 percent is prepared for outroot spraying. The effect indexes are as follows: total above-ground biomass of 581.0g/m 2 Chinese wildrye Biomass 310.0g/m 2 54.6 percent of leymus chinensis, 49.7cm of height of leymus chinensis, 22.5cm of community height and 647.7 strains/m of density of leymus chinensis 2 。
II, fertilizing time: 6/month 30
The fertilizer application formula comprises: 12 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and preparing the solution with the concentration of 0.05 percent to be sprayed outside roots.
The effect indexes are as follows: total aboveground biomass 376.2g/m 2 Sheep grass biomass 151.2g/m 2 The proportion of the leymus chinensis is 40.2 percent, the height of the leymus chinensis is 45.7cm, the community height is 23.2cm, and the density of the leymus chinensis is 312.3 strains/m 2 。
TABLE 2 Effect of different fertilization times on the Leymus chinensis ratio
Figure BDA0003306225470000062
EXAMPLE 3 Effect of different Urea application rates on the proportion of Eupatorium Adenophorum
This example provides a search for different urea application rates, the results of which are shown in Table 3.
Firstly, fertilizing time: month 3 to 30
The fertilizer application formula comprises: 6 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, wherein the ammonium molybdate solution with the concentration of 0.05 percent is prepared for outroot spraying.
The effect indexes are as follows: total aboveground biomass 392.1g/m 2 Chinese wildrye biomass 147.2g/m 2 The proportion of the leymus chinensis is 37.5 percent, the height of the leymus chinensis is 38.7cm, the community height is 20.7cm, and the density of the leymus chinensis is 284.7 strains/m 2 。
II, fertilizing time: 3, month 30
The fertilizer application formula comprises: 8 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate and 2 kg/mu of zinc sulfate, 0.15 kg/mu of ammonium molybdate, and the fertilizer is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total aboveground biomass of 478.1g/m 2 191.8g/m of Chinese wildrye biomass 2 The proportion of the leymus chinensis is 40.1 percent, the height of the leymus chinensis is 46.7cm, the community height is 20.2cm, and the density of the leymus chinensis is 465.4 strains/m 2 。
Thirdly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 10 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total aboveground biomass 565.4g/m 2 Chinese wildrye biomass 302.4g/m 2 53.5 percent of leymus chinensis, 49.6cm of height of leymus chinensis, 23.1cm of community height and 654.7 strains/m of density of leymus chinensis 2 。
Fourthly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 12 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total above-ground biomass of 581.0g/m 2 Chinese wildrye Biomass 310.0g/m 2 54.6 percent of Chinese wildrye, 49.7cm of height of the Chinese wildrye, 22.5cm of community height and 647.7 strains/m of density of the Chinese wildrye 2 。
Fifthly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 14 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total aboveground biomass 570.1g/m 2 Chinese wildrye biomass 297.6g/m 2 The proportion of the Chinese wildrye is 52.2 percent, the height of the Chinese wildrye is 49.2cm, the community height is 21.5cm, the density of the Chinese wildrye is 637.8 strains/m 2 。
Sixthly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 16 kg/mu of urea; 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total aboveground biomass 569.1g/m 2 Chinese wildrye Biomass 293.1g/m 2 The proportion of the Chinese wildrye is 51.5 percent, the height of the Chinese wildrye is 48.4cm, the community height is 23.5cm, the density of the Chinese wildrye is 653.1 strains/m 2 。
TABLE 3 Effect of different Urea application rates on the Leymus chinensis ratio
Figure BDA0003306225470000081
Example 4 Effect of different amounts of naturally-decomposed fertilisers on the proportion of leymus chinensis
This example provides a search for different rates of application of naturally composted fertilizers, and the results are shown in table 4.
Firstly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 600 kg/mu of organic fertilizer; 12 kg/mu of urea, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total aboveground biomass 427.5g/m 2 Sheep grass biomass 186.0g/m 2 The proportion of the leymus chinensis is 43.5 percent, the height of the leymus chinensis is 43.5cm, the community height is 21.3cm, and the density of the leymus chinensis is 354.8 strains/m 2 。
II, fertilizing time: month 3 to 30
The fertilizer application formula comprises: 800kg of organic fertilizer per mu; 12 kg/mu of urea, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.2 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total aboveground biomass 507.4g/m 2 254.2g/m of Chinese wildrye biomass 2 The proportion of the leymus chinensis is 50.1 percent, the height of the leymus chinensis is 46.3cm, the community height is 22.7cm, and the density of the leymus chinensis is 562.7 strains/m 2 。
Thirdly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 1000kg of organic fertilizer per mu; 12 kg/mu of urea, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total above-ground biomass of 581.0g/m 2 Sheep grass biomass 310.0g/m 2 54.6 percent of Chinese wildrye, 49.7cm of height of the Chinese wildrye, 22.5cm of community height and 647.7 strains/m of density of the Chinese wildrye 2 。
Fourthly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 1200 kg/mu of organic fertilizer; 12 kg/mu of urea, 12 kg/mu of diammonium phosphate, 2 kg/mu of zinc sulfate and 0.2 kg/mu of ammonium molybdate, and the solution is prepared by spraying ammonium molybdate solution with the concentration of 0.05 percent outside roots.
The effect indexes are as follows: total aboveground biomass 574.8g/m 2 Chinese wildrye Biomass 289.9g/m 2 The proportion of the leymus chinensis is 50.4 percent, the height of the leymus chinensis is 42.3cm, the community height is 23.1cm, and the density of the leymus chinensis is 633.1 strains/m 2 。
TABLE 4 influence of different organic fertilizer application amounts on the ratio of leymus chinensis
Figure BDA0003306225470000101
Example 5 Effect of different diammonium phosphate application rates on the proportion of Eupatorium Adenophorum
This example provides a search for different diammonium phosphate application rates, and the results are shown in Table 5.
Firstly, fertilizing time: 3, month 30
The fertilizer application formula comprises: 6 kg/mu of diammonium phosphate; 12 kg/mu of urea, 1000 kg/mu of organic fertilizer, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared into 0.05 percent of ammonium molybdate solution for spraying outside roots.
The effect indexes are as follows: total aboveground biomass 467.1g/m 2 212.0g/m of Chinese wildrye biomass 2 The Chinese wildrye proportion is 45.4 percent, the height of the Chinese wildrye is 35.6cm, the community height is 23.1cm, and the Chinese wildrye density is 412.2 strains/m 2.
II, fertilizing time: month 3 to 30
The fertilizer application formula comprises: diammonium phosphate is 12 kg/mu; 12 kg/mu of urea, 1000 kg/mu of organic fertilizer, 2 kg/mu of zinc sulfate and 0.15 kg/mu of ammonium molybdate, and the solution is prepared into 0.05 percent of ammonium molybdate solution for spraying outside roots.
The effect indexes are as follows: total above-ground biomass of 581.0g/m 2 Sheep grass biomass 310.0g/m 2 54.6 percent of Chinese wildrye, 49.7cm of height of the Chinese wildrye, 22.5cm of community height and 647.7 strains/m of density of the Chinese wildrye 2 。
TABLE 5 influence of different phosphate fertilizer application amounts on the Leymus chinensis proportion
Figure BDA0003306225470000111
Example 6 Effect of different Zinc sulfate application rates on the proportion of Eupatorium Adenophorum
This example provides a search for different zinc sulfate application rates and the results are shown in table 6.
Firstly, fertilizing time: 3, month 30
The fertilizer application formula comprises: zinc sulfate is not added; 12 kg/mu of urea, 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate and 0.15 kg/mu of ammonium molybdate, and the ammonium molybdate solution with the concentration of 0.05 percent is prepared for outroot spraying.
The effect indexes are as follows: total aboveground biomass 512.3g/m 2 Leymus chinensis biomass 245.5g/m 2 The proportion of the leymus chinensis is 47.9 percent, the height of the leymus chinensis is 45.6cm, the community height is 22.1cm, and the density of the leymus chinensis is 531.3 plants/m 2 。
II, fertilizing time: 3, month 30
The fertilizer application formula comprises: 2kg of zinc sulfate per mu; 12 kg/mu of urea, 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate and 0.15 kg/mu of ammonium molybdate, and the ammonium molybdate solution with the concentration of 0.05 percent is prepared for outroot spraying.
The effect indexes are as follows: total above-ground biomass of 581.0g/m 2 Chinese wildrye Biomass 310.0g/m 2 54.6 percent of Chinese wildrye, 49.7cm of height of the Chinese wildrye, 22.5cm of community height and 647.7 strains/m of density of the Chinese wildrye 2 。
TABLE 6 Effect of different Zinc sulfate application rates on the ratio of Leymus chinensis
Figure BDA0003306225470000112
Figure BDA0003306225470000121
Example 7 application of trace element ammonium molybdate amounts
This example provides a search for the number of applications of the trace element ammonium molybdate, and the results are shown in table 7.
Firstly, a fertilizer application formula: no ammonium molybdate aqueous solution is added; 1000 kg/mu of organic fertilizer, 12 kg/mu of urea, 12 kg/mu of diammonium phosphate and 2 kg/mu of zinc sulfate.
The effect indexes are as follows: total aboveground biomass 466.5g/m 2 Sheepskin biomass 192.2g/m 2 The proportion of the leymus chinensis is 41.2 percent, the height of the leymus chinensis is 38.6cm, the community height is 22.3cm, and the density of the leymus chinensis is 411.0 strain/m 2 。
Secondly, fertilizing formula: spraying the ammonium molybdate aqueous solution outside roots once; 12 kg/mu of urea, 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate and 2 kg/mu of zinc sulfate.
The effect indexes are as follows: total aboveground biomass 503.1g/m 2 The Chinese wildrye biomass is 249.1g/m 2 The proportion of the leymus chinensis is 49.5 percent, the height of the leymus chinensis is 42.6cm, the community height is 20.8cm, and the density of the leymus chinensis is 513.4 plants/m 2 。
Thirdly, fertilizing formula: spraying ammonium molybdate aqueous solution twice outside roots; 12 kg/mu of urea, 1000 kg/mu of organic fertilizer, 12 kg/mu of diammonium phosphate and 2 kg/mu of zinc sulfate.
The effect indexes are as follows: total above-ground biomass of 581.0g/m 2 Sheep grass biomass 310.0g/m 2 54.6 percent of leymus chinensis, 49.7cm of height of leymus chinensis, 22.5cm of community height and 647.7 strains/m of density of leymus chinensis 2 。
Fourthly, fertilizing formula: spraying ammonium molybdate aqueous solution outside roots for three times; 12kg of urea, 1000kg of organic fertilizer, 12kg of diammonium phosphate and 2kg of zinc sulfate.
The effect indexes are as follows: total aboveground biomass 562.1g/m 2 The biomass of Chinese wildrye is 267.4g/m 2 The proportion of the leymus chinensis is 50.8 percent, the height of the leymus chinensis is 46.7cm, the community height is 21.8cm, and the density of the leymus chinensis is 626.5 strains/m 2 。
TABLE 7 influence of the application frequency of the trace element ammonium molybdate on the Leymus chinensis proportion
Figure BDA0003306225470000131
Although the invention has been described in detail with respect to the general description and the specific embodiments thereof, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Accordingly, it is intended that all such modifications and alterations be included within the scope of this invention as defined in the appended claims.

Claims (4)

1. A method for promoting the underground rhizome propagation of leymus chinensis is characterized in that organic-inorganic compound fertilizer is applied to a leymus chinensis grassland;
according to the mass ratio, in the organic-inorganic compound fertilizer, the naturally fermented and decomposed fertilizer: urea: diammonium phosphate: zinc sulfate: the ammonium molybdate is (800-1000): (12-12.5): (12-12.5): 1.5-2): 0.15-0.2); the mass fraction of organic matters of the naturally fermented decomposed fertilizer is more than or equal to 25 percent, and the mass fraction of nitrogen, phosphorus and potassium is more than or equal to 3 percent; the naturally fermented and decomposed fertilizer is naturally fermented and decomposed sheep manure;
the organic-inorganic compound fertilizer is characterized in that the fertilizing time of the sheep manure, the urea, the diammonium phosphate and the zinc sulfate is selected in the tillering stage of the leymus chinensis, and the ammonium molybdate is sprayed twice from the seedling stage to the prophase of flowers of the leymus chinensis.
2. The method as claimed in claim 1, wherein the sheep manure is applied by spraying with a fertilizer applicator, urea, diammonium phosphate and zinc sulfate are mixed uniformly and applied by a seeder without tillage, and ammonium molybdate is prepared into an aqueous solution and applied by spraying outside roots.
3. The method of claim 2, wherein the aqueous solution of ammonium molybdate is used at a concentration of 0.05 to 0.1% for the over-root spray.
4. Use of the method according to any of claims 1 to 3 for increasing grassy productivity, for improving grassy community architecture, for increasing grass quality.
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105367246A (en) * 2015-11-26 2016-03-02 南宁市金沙壮畜牧养殖有限责任公司 Special organic compound mixed fertilizer for sugarcane and preparation method for fertilizer
CN106508228A (en) * 2016-11-29 2017-03-22 中国科学院植物研究所 Special fertilizer for grassland and method for rapidly recovering deteriorated grassland
CN106721146A (en) * 2016-11-29 2017-05-31 中国科学院植物研究所 A kind of sheep's hay accelerator and its application
CN110199826A (en) * 2019-04-04 2019-09-06 中国科学院植物研究所 A method of the Degraded Grasslands ecosystem is restored by planting sheep's hay

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105367246A (en) * 2015-11-26 2016-03-02 南宁市金沙壮畜牧养殖有限责任公司 Special organic compound mixed fertilizer for sugarcane and preparation method for fertilizer
CN106508228A (en) * 2016-11-29 2017-03-22 中国科学院植物研究所 Special fertilizer for grassland and method for rapidly recovering deteriorated grassland
CN106721146A (en) * 2016-11-29 2017-05-31 中国科学院植物研究所 A kind of sheep's hay accelerator and its application
CN110199826A (en) * 2019-04-04 2019-09-06 中国科学院植物研究所 A method of the Degraded Grasslands ecosystem is restored by planting sheep's hay

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