Efficient water-saving cultivation method for rice in cold areas

A cultivation method and rice technology, applied in the agricultural field, can solve the problems of difficulty in adapting to the requirements of popularization and application, short frost-free period, low effective accumulated temperature, etc., and achieve the effects of facilitating implementation and popularization, reducing nutrient drainage, and reducing irrigation amount.

Inactive Publication Date: 2012-11-14
HOHAI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, due to the low effective accumulated temperature and short frost-free period in cold regions, the soil physical and chemical properties are very different from those in southern rice regions, so the lower limit threshold of water regulation is generally higher than that in southern regions. Corresponding supporting production measu

Method used

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  • Efficient water-saving cultivation method for rice in cold areas
  • Efficient water-saving cultivation method for rice in cold areas
  • Efficient water-saving cultivation method for rice in cold areas

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Example 1: Take the 2010 test of the Qinjia Irrigation Test Station in Beilin District, Suihua City, Heilongjiang Province as an example.

[0027] 1. Before transplanting

[0028]Early breeding and sparsely planted rice in cold areas should be prepared, fertilized, and soaked before transplanting. In order to prevent pests and diseases, rice should be planted in a row. The varieties should not be too complicated to prevent the transfer of pests and diseases back and forth. Manage water and fertilizer.

[0029] ① Soil preparation: It is necessary to plow the land in autumn, and the depth of the plow layer should be 20 cm to 25 cm.

[0030] ② Fertilization: 80-90kg / ha of urea + 50-70kg / ha of diamine phosphate + 65-75kg / ha of potassium fertilizer (potassium chloride) as base fertilizer, and the base fertilizer must be added before watering.

[0031] ③Soaking the field: Start soaking the field around the beginning of May, and water from far to near, from high to low, and ...

Embodiment 2

[0066] Embodiment 2: Taking the 2010 test of the Tangwang River Irrigation District Test Station in Heilongjiang Province as an example:

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Abstract

The invention discloses an efficient water-saving cultivation method for rice in cold areas. The efficient water-saving cultivation method is characterized by comprising adopting an intermittent circulating alternate irrigation method at different growth periods of the rice, performing irrigation to a water-layer upper limit, then performing natural soil drying; during the period, if the rainfall is stored to the rain-storing upper limit and the lower limit of the soil water content of each growth periods is reached, repeatedly irrigating to the irrigation water-layer upper limit, performing circulating alternation, and performing corresponding fertilization, insecticide spraying and weeding to be matched with each growth period until harvest. The efficient water-saving cultivation method is extremely remarkable in water-saving yield-increasing effects. According to test statistics, the average net quota for conventional shallow irrigation per 2000/3 m2 is about 390 m3, the water-saving irrigation amount per 2000/3 m2 is 240 m3, the water-saving amplitude is 38%, the yield is increased by 25kg per 2000/3 m2, the yield increase amplitude is 5%, the cost is reduced by 100 RMB per 2000/3 m2, and moisture production efficiency and irrigation water utilization efficiency are respectively improved by 44% and 87% in comparison with conventional irrigation.

Description

technical field [0001] The invention belongs to the technical field of agriculture, and in particular relates to a high-efficiency water-saving cultivation method for rice in cold regions during the whole growth period. Background technique [0002] Rice production was originally concentrated in the south, but since the 1990s, rice production in the north has increased significantly. Among them, Heilongjiang Province had only 283,000 hectares of rice in 1980, which soared to 3,345,000 hectares in 2011, an increase of nearly 12 times in more than 30 years. The output of rice has also increased from 3.4 billion catties in 1980 to nearly 50 billion catties in 2011, and the commodity volume has reached more than 80%. [0003] The resource, engineering, and water quality shortages of water resources restrict the further development of rice area, and are the biggest bottleneck of rice development in cold regions. Taking Heilongjiang in Northeast China as an example, in 2011, Hei...

Claims

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Application Information

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IPC IPC(8): A01G25/00A01G16/00A01G22/22
Inventor 郭龙珠吕纯波魏邦记王振刚何权朱伟峰
Owner HOHAI UNIV
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