CN102731189B - Water dropwort top dressing formula and top dressing method - Google Patents
Water dropwort top dressing formula and top dressing method Download PDFInfo
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- CN102731189B CN102731189B CN 201210216992 CN201210216992A CN102731189B CN 102731189 B CN102731189 B CN 102731189B CN 201210216992 CN201210216992 CN 201210216992 CN 201210216992 A CN201210216992 A CN 201210216992A CN 102731189 B CN102731189 B CN 102731189B
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- top dressing
- urea
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- potassium sulfate
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Abstract
The invention belongs to the field of agriculture (vegetables) cultivation, and specifically relates to a water dropwort top dressing formula and a top dressing method. The water dropwort top dressing formula comprises urea and potassium sulfate, wherein a mass ratio of the urea to the potassium sulfate is 1:1.1. During top dressing, urea and potassium sulfate are dressed within 3 days after eachstubble of the water dropwort is harvested, wherein the dressing amounts of the urea and the potassium sulfate are respectively 140 kg/hm<2> and 168 kg/hm<2>. With the top dressing of the formula of the present invention, the use amount of P fertilizer can be saved, and the production cost can be saved; the environment release of the P element can be reduced, and formation and outbreak of blue-green algae in a large water body can be slowed down; and most of P ores in our country contain lead, cadmium and other toxic heavy metal elements, such that active effects can be provided for preventing toxic heavy metals in water dropwort products from exceeding the standard by reducing the P fertilizer application.
Description
Technical field
The invention belongs to agricultural (vegetables) cultivation field, be specifically related to a kind of Chinese celery prescription topdressing method that topdresses.
Background technology
Leaf vegetables is nourished and grown, is grown fast with promotion generally based on N fertilizer.
Base manure is generally based on N, P, K geometric ratio or content close composite fertilizer or the fertilizer that becomes thoroughly decomposed.
The P element is the prolific limiting factor of blue-green algae in the eutrophication fresh water, and the release of P element can cause the outburst of eutrophication water blue-green algae; Often there is association heavy metal (Zn, Pb, Cu, Co, Ni, Cd) in the ground phosphate rock, uses the accumulation that may cause corresponding heavy metal in the soil for a long time, in a large number and jeopardize agricultural product security.
Crude fiber content is the leading indicator that influences the leaf vegetables taste quality.
Leaf obtains to be suitable for plantation in protections such as greenhouse ground facility, the many batches of new Chinese celery types that gather, that the related leaflet of the more energy of leaflet eats together with Chinese celery (wet and plant Chinese celery) for screening in recent years.
Generally behind every batch of harvest product, or impose N fertilizer merely on producing at present, every mu imposes urea 15-20kg; Or impose geometric ratio N-P-K(15-15-15%) Nitrogen, Phosphorus and Potassium 20-25kg(or a great deal of).In process of growth, look colony's growing way and suitably impose urea.According to the Chinese celery growth demand of fertilizer is not carried out the rational application of fertilizer, cause the fertile waste of P and may cause environmental pollution.
Park.Y.J ﹠amp; Kim Y.O.(1996) thinks that N, the P of Chinese celery nutrient fluid cultivation, K optimum quality ratio are: N: P
2O
5: K
2O=1.78: 1: 3.98.（Park.Y.J,Kim?Y.O.1996.Study?on?the?nutrient?composition?of?hydroponic?water?dropwort?(Oena?nthe?stolonifera?DC).Food?Chemistry,57(1):79-79.）。
Summary of the invention
In order to reduce the fertile amount of application of P, to improve the fertile utilising efficiency of P, to alleviate the accumulation to eutrophication pressure and the phosphate fertilizer association heavy metal of environment water system.The N-P-K Application Ratio of seeking to suit under the prerequisite that guarantees output, keeps or improves the quality of product.The invention provides a kind of Chinese celery prescription that topdresses.
In order to realize purpose of the present invention, obtain desirable prescription by following method:
(1) adopts the nutrient fluid cultivation Chinese celery of different ratios N, P, K, measure relatively quality parameter such as output and product (petiole) robust fibre, seek to guarantee output, N-P-K Application Ratio that again can guaranteed quality.
Verify that at nutrient fluid cultivation (with reference to Park.Y.J, Kim Y.O.1996 article) Chinese celery growth optimum N-P-K mass ratio is N: P
2O
5: K
2O=1.78: 1: 3.98).
(2) in the conventional rural area soil of middle fertility, proceed topdressing test;
A, carry out the different fertilizer kind relatively: the result think N fertilizer with urea be good, K is fertile is good with vitriolate of tartar.Show as that output is the highest, the petiole crude fiber content is minimum;
B, carry out urea, vitriolate of tartar, the calcium superphosphate different ratios effect of relatively topdressing: the result thinks N: P
2O
5: K
2The O(mass ratio)=be at 140: 40: 168 best;
C, remove calcium superphosphate, only verify for topdressing with urea and the vitriolate of tartar of aforementioned proportion, finding topdresses, and not to add P fertilizer efficiency fruit better.
By above-mentioned a series of experiments, determined that finally topdress prescription urea and vitriolate of tartar of Chinese celery of the present invention form, wherein the mass ratio of urea and vitriolate of tartar is 1: 1.1.
The invention also discloses a kind of Chinese celery topdressing method, is to gather in back 3 days at every batch to impose urea and vitriolate of tartar, and the amount of imposing is: urea 140kg/hm
2, vitriolate of tartar 168kg/hm
2
In the soil of conventional fertility, generally use more fertilizer and geometric ratio Nitrogen, Phosphorus and Potassium before the plantation as base manure, the P constituent content can meet whole growth season (half a year) required (calculating with mu ultimate production 10000kg) fully, if plant the base of Chinese celery for many years, then owing to use the geometric ratio Nitrogen, Phosphorus and Potassium before in a large number, it is required that the P constituent content generally all exceeds the Chinese celery growth in its soil, therefore, it is fertile and K is fertile and do not add P fertilizer with N only to topdress, and can satisfy the needs that Chinese celery grows fully.
The kind of fertile as for N in K fertilizer is advisable with urea and vitriolate of tartar, shows as that output is higher, quality better (crude fiber content that influences mouthfeel is lower, and the solubility total sugar content is higher); Its fertilizer quality ratio be 1: 1.1 for good, amount of application is good with the capacity fertilising, shows as N
3K
3The ultimate production of handling is the highest, crude fiber content is lower.
Therefore, use topdressing of this prescription, first consumption that can save P fertilizer, save production cost; Second environment that can reduce the P element discharges, and slows down formation and the outburst of big water body medium blue green alga; The 3rd, much contain toxic heavy metal elements such as lead, cadmium in China P ore at present, reduce using of P fertilizer, also be expected preventing that the Chinese celery product from poisonous heavy metals exceeding standard occurring and playing active effect.
Embodiment
Adopt the nutrient fluid cultivation Chinese celery of different ratios N, P, K, measure relatively quality parameter such as output and product (petiole) robust fibre, seek to guarantee output, N-P-K Application Ratio that again can guaranteed quality.
At nutrient fluid cultivation checking Chinese celery growth optimum N: P
2O
5: K
2O=1.78: 1: 3.98; K content to half amount has no significant effect Chinese celery output in the nutritive medium but also find to reduce, and illustrates that the fertile amount of application of K can suitably reduce.
Table 1 different N, K trophic level are to the influence of Chinese celery chlorophyll, photosynthetic rate and output
Annotate: different minuscules represent that difference reaches 0.05 conspicuous level in every row, down together.
Handle and arrange: all are handled all according to Park.Y.J in the table 1, formulated P element and the content thereof of Kim Y.O.1996, with Park.Y.J, the N of Kim Y.O.1996 prescription, K content are contrast (CK), test half amount respectively and doubly measure N and K element to the influence of output.
In the conventional rural area soil of middle fertility, proceed topdressing test (imposing topdressing of different ingredients in back 3 days every batch of harvesting);
1, carry out the different fertilizer kind relatively: the results are shown in Table 2, think N fertilizer with urea be good, K is fertile is good with vitriolate of tartar.Show as that output is the highest, the petiole crude fiber content is minimum;
Table 2 fertilizer type relatively
Annotate: different letter representation differences reach 0.01 utmost point conspicuous level in every row.
Except N fertilizer and K fertilizer, all omitted P fertilizer (calcium superphosphate) in " processing "
2, carry out urea, vitriolate of tartar, the calcium superphosphate different ratios effect of relatively topdressing: the result thinks N: P
2O
5: K
2O=140: be best (in table 3 N3K3 group) at 40: 168;
Table 3 fertilizer ratio
3, remove calcium superphosphate, only verify for topdressing with urea and the vitriolate of tartar of above-mentioned N3K3 group ratio, finding topdresses does not add P fertilizer efficiency fruit better (seeing Table 4).
The fertile checking of table 4P
Annotate: P0 is the calcium superphosphate that removes in the N3K3 group, only is urea and vitriolate of tartar in proportion; P1 is N, K, P fertile handles identical with the N3K3 group.
Claims (1)
1. Chinese celery topdressing method is characterized in that imposing urea and vitriolate of tartar every batch of harvesting in back 3 days, and the amount of imposing is: urea 140 kg/hm
2, vitriolate of tartar 168 kg/hm
2
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210216992 CN102731189B (en) | 2012-06-28 | 2012-06-28 | Water dropwort top dressing formula and top dressing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210216992 CN102731189B (en) | 2012-06-28 | 2012-06-28 | Water dropwort top dressing formula and top dressing method |
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| CN102731189A CN102731189A (en) | 2012-10-17 |
| CN102731189B true CN102731189B (en) | 2013-09-18 |
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ID=46987583
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| CN 201210216992 Expired - Fee Related CN102731189B (en) | 2012-06-28 | 2012-06-28 | Water dropwort top dressing formula and top dressing method |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103145476A (en) * | 2012-11-13 | 2013-06-12 | 陈卫文 | Compound fertilizer suitable for celery planting in middle and low fertility area |
| CN103145479A (en) * | 2012-11-13 | 2013-06-12 | 陈卫文 | Compound fertilizer suitable for celery planting in high fertility area |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2342376A (en) * | 1942-01-19 | 1944-02-22 | Lawrence F Sims | Celery blanching ring |
| CN100569709C (en) * | 2008-03-04 | 2009-12-16 | 山东省农业科学院土壤肥料研究所 | A kind of nitrogen potassium dressing fertilizer and preparation method thereof with slow release effect |
| CN102476967A (en) * | 2010-11-28 | 2012-05-30 | 杜平 | Special fertilizer for vegetable |
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2012
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Granted publication date: 20130918 Termination date: 20160628 |