Special rice fertilizer with both soil improvement and fertilizer efficiency functions for coastal saline soil and preparation method and application of special rice fertilizer

A technology of saline-alkali soil and special fertilizer, which is applied in the field of special fertilizer for one-time application of base fertilizer and its preparation in rice, can solve the problems of long soil fertility cultivation cycle, low nutrient utilization efficiency, and insufficient attention to trace element fertilizers, so as to improve soil texture and promote Soil nutrient reserves, the effect of improving air permeability and water permeability

Active Publication Date: 2015-12-02
INST OF SOIL SCI CHINESE ACAD OF SCI +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved: the present invention aims at a series of practical problems such as long soil fertility cultivation cycle, low nutrient utilization efficiency, and insufficient attention to trace element fertilizers in the process of planting rice in coastal tidal flat saline-alkali land, and provides a coastal soil with both soil improvement and fertilizer efficiency functions. Special fertilizer for rice in saline-alkali land and its preparation method and application

Method used

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  • Special rice fertilizer with both soil improvement and fertilizer efficiency functions for coastal saline soil and preparation method and application of special rice fertilizer
  • Special rice fertilizer with both soil improvement and fertilizer efficiency functions for coastal saline soil and preparation method and application of special rice fertilizer
  • Special rice fertilizer with both soil improvement and fertilizer efficiency functions for coastal saline soil and preparation method and application of special rice fertilizer

Examples

Experimental program
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Embodiment 1

[0046] Cultivated land with moderate saline-alkali obstacles on coastal beaches. The soil salinity in the 0-20cm plow layer of the test plot is 2.6-3.9g / kg, the pH is 9.37, the average organic matter content is 8.92g / kg, the total nitrogen is 0.36g / kg, the alkaline nitrogen is 35.44mg / kg, and the available phosphorus is 9.27mg / kg, available potassium 233.56mg / kg. Location: Huanghai Original Seed Farm, Dongtai City, Jiangsu Province, located on the coast of Cangang Town, Dongtai City, the experiment period was from May 2013 to October 2013. The test plot was reclaimed in 2003 and has a history of 3 years of agricultural planting. The test site is 4.6 kilometers away from the coastline to the east.

[0047] Six special rice fertilizer formulas were prepared, namely F1, F2, F3, F4, F5 and F6. The proportioning of each special fertilizer is specifically as follows by weight: F1 (25 parts of humic acid; 30 parts of fulvic acid, 25 parts of compound fertilizer; 18 parts of silico...

Embodiment 2

[0070]The cultivated land with medium and severe saline-alkali barriers in coastal tidal flats is located in the Yellow Sea Original Seed Farm in Dongtai City, Jiangsu Province, and is located on the coast of Cangang Town, Dongtai City. The test area was reclaimed in 2003, with a history of 3 years of agricultural planting, and the east of the test site is 4.6 kilometers from the coastline. Select 2 test plots: Plot 1 is a moderately saline-alkali land, the soil salinity of 0-20cm in the plow layer is 2.2-4.1g / kg, the pH is 9.18, the average organic matter content is 8.74g / kg, and the total nitrogen is 0.39g / kg. The nitrogen is 33.12mg / kg, the available phosphorus is 9.46mg / kg, and the available potassium is 241.72mg / kg; the salt content of the 0-20cm soil of the test plot 2 is 3.5-5.4g / kg, which is a severe saline-alkali land, and the pH is 9.42 , the average organic matter content is 6.59g / kg, the total nitrogen is 0.31g / kg, the alkaline nitrogen is 30.96mg / kg, the available...

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Abstract

The invention discloses a special rice fertilizer with both soil improvement and fertilizer efficiency functions for coastal saline soil and a preparation method and application of the special rice fertilizer. The special rice fertilizer comprises the following components in parts by mass: 35-40 parts of humic acid, 15-20 parts of fulvic acid, 20-25 parts of a composite fertilizer, 15-20 parts of a silicon calcium fertilizer, 1-1.5 parts of a urease inhibitor and 1-1.5 parts of a nitrification inhibitor. According to the invention, the application method combines soil culture, root system activation, crop nourishment and fertilizer efficiency improvement, so the rice fertilizer is low in cost, stable in effect, applicable to mechanical operation, not only applicable to coastal intertidal zones, but also applicable to rice planting in saline-alkali soil in north China or even northwest inland.

Description

technical field [0001] The invention relates to a special fertilizer for rice and its preparation and application method, in particular to a special fertilizer suitable for my country's coastal saline-alkali land, which has both soil improvement and fertilizer effects, and can be used as a base fertilizer for rice at one time, and its preparation method and application. Background technique [0002] my country's saline-alkali land resources are widely distributed in 17 provinces and regions mainly in the north. Northwest, northeast, North China and coastal areas are the main concentrated distribution areas of saline-alkali land in my country. %. my country's coastal areas have a total area of ​​saline-alkali land (including tidal flats) of about 2.35 million hm 2 In recent years, as the coastal development of Jiangsu, Zhejiang, Shandong and other provinces has been promoted to a national strategy, the acceleration of reclamation has led to a continuous increase in the area o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/04C05G3/08A01C21/00A01G16/00A01G22/22C05G3/80C05G3/90
CPCY02P60/21
Inventor 姚荣江杨劲松张新孙运朋余世鹏
Owner INST OF SOIL SCI CHINESE ACAD OF SCI
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