CN105669275A

CN105669275A - Base fertilizer for rice cultivation in paddy field on desalting mud polder

Info

Publication number: CN105669275A
Application number: CN201610129107.5A
Authority: CN
Inventors: 刘荣杰; 葛超楠; 魏章焕; 童相兵; 史努益; 胡宇峰
Original assignee: NINGHAI COUNTY AGRICULTURAL TECHNOLOGY EXTENSION STATION
Current assignee: NINGHAI COUNTY AGRICULTURAL TECHNOLOGY EXTENSION STATION
Priority date: 2015-11-27
Filing date: 2016-03-08
Publication date: 2016-06-15

Abstract

The invention relates to a base fertilizer for rice cultivation in a paddy field on desalting mud polder. The ratio of nitrogen to phosphorus to potassium is (20-26):(10-16):(8-12); and compared with the prior art, as the formula fertilizer is used, the cost can be saved by about 38% while guaranteeing that the yield is close to the yield of a common base fertilizer, and waste or loss of large amount of phosphorus and potassium fertilizers can be greatly reduced, so that the chemical fertilizer utilization ratio can be improved.

Description

Light painting mud field Rice Cropping base manure

Technical field

The invention belongs to agricultural rice growing technical field of fertilizers, particularly relate to a kind of light painting mud field Rice Cropping base manure.

Background technology

Light painting mud field is distributed more widely in coastal area, but limits it in application agriculturally because of its soil meta-alkalescence, causes that light painting mud field planting range is less. And the Oryza sativa L. that is not specifically designed for of prior art is planted and the base manure that uses on light painting mud field, cause that Oryza sativa L. uses common base manure when planting on light painting mud field, although yield is high, but cost is also high, and chemical fertilizer utilization ratio is relatively low.

Summary of the invention

The present invention is directed to problem above provide one can cost-saving synergistic, benefit is better and the higher light painting mud field Rice Cropping base manure of chemical fertilizer utilization ratio.

This invention address that the technical scheme used by problem above is: providing a kind of light painting mud field Rice Cropping base manure, its nitrogen phosphoris and potassium fertilizer ratio is 20～26: 10～16: 8～12.

After adopting above formula and method, compared with prior art, due to the fact that and employ above-mentioned formula fertilizer, ensureing that yield is close under the premise of common base manure yield, can save the cost of about 38%, and also a large amount of phosphorus, the waste of potash fertilizer or loss can be reduced, improve chemical fertilizer utilization ratio. Therefore the present invention have can cost-saving synergistic, benefit is better and the higher feature of chemical fertilizer utilization ratio.

As preferably, described nitrogen phosphoris and potassium fertilizer ratio is 22～25: 12～15: 8～10.

Detailed description of the invention

Below in conjunction with specific embodiment, the present invention is described further.

Experimental cultivar is " river in Zhejiang Province excellent 12 ".

" river in Zhejiang Province excellent 12 " is the indica-japonica hybrid late rice Combination nova of Ningbo City Agriculture Science Academy and the cooperation incubation of seed company limited of Ningbo City, within 2010, passes through Zhejiang Province's variety certification. This kind, due to high yield characteristics, once release, receives rapidly the welcome of vast farmers. " river in Zhejiang Province excellent 12 " hundred mu of Fang Jun products particularly in the plantation of bridge hundred beam bridge village, hole, Yin state in 2012 reach 14.45t/hm², maximum output 15.21t/hm², create the hundred mu of square average yield per mu highest records in the whole nation, it means that the hybrid rice research level of China holds a safe lead in the world. " river in Zhejiang Province excellent 12 " needs fertilizer big, in actual production, " river in Zhejiang Province excellent 12 " use purity nitrogen even up to 450kg by nitrogen quantity per hectare; But some test in, " river in Zhejiang Province excellent 12 " be but far smaller than 450kg/hm by nitrogen quantity². As wear laugh at, Bao Zuda, fourth Yang Dong etc. thinking in " excellent No. 12 Transplanting Densities in super hybridization rice river in Zhejiang Province with nitrogen fertilizer amount Preliminary Report on Experiment " of " agricultural science and technology communication " the 4th interim issue in 2012, the optimum amount of application of nitrogen fertilizer that " the excellent l2 in river in Zhejiang Province " cultivates in Shu Jiang district is 120～180kg/hm², now yield, tree characteristics and Spike-grain structure all show better;Tong Xiangbing etc. in " the different nitrogen fertilizer amount impact on river in Zhejiang Province major clique series hybrid rice yield " of " Ningbo agricultural science and technology " the 2nd interim issue in 2010, research shows, the fertilizer amount of " river in Zhejiang Province excellent 12 " should control at purity nitrogen 180～225kg/hm²Better; Wu Jianneng, Xu Kaihua, Chen Zhongze etc. thinking under medium soil soil fertility condition in " impact on excellent 12 Spike-grain structure in late hybrid rice river in Zhejiang Province and yield of the different nitrogen fertilizer amounts " of " gardening and seedling " the 2nd interim issue in 2011, the best amount of nitrogen of " river in Zhejiang Province excellent 12 " direct sowing culture is purity nitrogen 225kg/hm²Left and right.

Light painting mud field previous crops Semen Tritici aestivi. To field sample examination before test: pH value is 4.77, and the content of organic matter is 47.7g/kg, and full nitrogen is 2.32g/kg, and available phosphorus is 2.16mg/kg, and available potassium is 242mg/kg, and water soluble salt total amount is 1.5g/kg, and cation exchange capacity (CEC) is 12.6coml/kg.

Base manure is divided into: formula fertilizer 25-15-8, formula fertilizer 25-10-10, formula fertilizer 20-12-8, Diammonium phosphate (DAP) 15-42-0 and import compound fertilizer 16-16-16. (import compound fertilizer (16-16-16) is from Russia; Diammonium phosphate (DAP) (15-42-0) is from Anhui Liuguo Chemical Industry Co., Ltd.)

Fertilizer application method: nitrogenous fertilizer divides base manure, tillering fertilizer, ear manuer to apply; by purity nitrogen 20 kilograms calculating; base manure purity nitrogen 6 kilograms; tillering fertilizer adds 9 kgs/acre of potassium chloride in purity nitrogen 7.82 kilograms and applies at twice in 1:1 ratio in transplanting one week after and transplanting two weeks after; ear manuer adds 9 kgs/acre of potassium chloride in purity nitrogen 5.98 kilograms and applies at twice in 1:1 ratio at short florescence and guarantor's florescence, is specifically shown in table 1. Plot area: 4.45m × 6m=26.7, three repeat random alignment, and surrounding arranges protection row, community strain number 350 strain (14 strain × 25 strains, 9 cun × 7 cun).

The excellent 12 formula fertilizer test fertilising table kg/ mus in table 1 river in Zhejiang Province

Table is recorded in the test of table 2 Oryza sativa L. formula fertilizer

That effective fringe is the highest as can be seen from Table 2 is 25-15-8, is 12.8 ten thousand/Seedling; 16-16-16 takes second place, and is 12.43 ten thousand/Seedling; 15-42-0 is minimum, is only 10.18 ten thousand/mu.

And reality grain number. That real grain number is maximum is 25-15-8, is 363.9/fringe; 16-16-16 takes second place, and is 354.27/fringe; 25-10-10 is minimum, is only 327.64/fringe.

Mass of 1000 kernel. That mass of 1000 kernel is maximum is 25-10-10, for 23.29g; Next to that 25-15-8, for 23.16g; 20-12-8 is minimum, for 22.46g.

Table 3 Oryza sativa L. formula fertilizer experimental plot yield log

From table 3 it can be seen that remove 15-42-0 respectively process a volume variance significantly, that yield is the highest is 16-16-16 is 887.88kg/ mu; Next to that 25-10-10, yield is 882.33kg/ mu; That yield is minimum is 15-42-0, and for 829.11kg/ mu, lower 58.77kg/ mu than maximum output 16-16-16, amount of decrease is 6.62%.

The fertile impact on cost and environment of table 4 different formulations

From table 4, it can be seen that when basal dressing, under the amount of application ensureing same pure N, that cost is the highest is Diammonium phosphate (DAP) 15-42-0, and cost is 136 yuan/mu; Secondly for import compound fertilizer 16-16-16, cost respectively 129.375 yuan/mu; That cost is minimum is formula fertilizer 25-10-10, is 61.25 yuan/mu, reduces fertilizer cost 68.125 yuan/mu than import compound fertilizer 16-16-16. It can be seen that three formula fertilizers of 25-15-8,25-10-10 and 20-12-8 are than import compound fertilizer 16-16-16 cost-saving synergistic, wherein especially with formula fertilizer 25-10-10 cost-saving synergistic maximizing the benefits, it is possible to reaching 50 yuan/mu, effect is obvious.

From to environmental, use formula fertilizer than using import compound fertilizer 16-16-16 and can reduce a large amount of phosphorus, the waste of potash fertilizer or loss, improve chemical fertilizer utilization ratio. For formula fertilizer 25-10-10, under using the consumption that pure N amount is identical, reduce than import compound fertilizer 16-16-16 and use P₂O₅3.6kg/ mu, K₂03.6kg/ mu, ecological benefits are obvious.

Above example is only presently preferred embodiments of the present invention, the present invention be not limited only to above example also allow for other change, all in rights to independence claimed range of the present invention change, all belong to scope.

Claims

1. a light painting mud field Rice Cropping base manure, it is characterised in that: its nitrogen phosphoris and potassium fertilizer ratio is 20～26: 10～16: 8～12.

2. light painting mud field according to claim 1 Rice Cropping base manure, it is characterised in that: described nitrogen phosphoris and potassium fertilizer ratio is 22～25: 12～15: 8～10.