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Preparation method of humus soil for rice seedling cultivation in soda saline-alkali land

A technology for soda saline-alkali soil and humus soil is applied in the field of crop cultivation, which can solve the problems of high soil borrowing cost, difficulty in cultivating strong seedlings, and difficulty in borrowing soil from seedlings, so as to solve the problems of difficulty in borrowing soil, less damage to diseases, insects, and weeds, and reduce the cost of raising seedlings. Effect

Inactive Publication Date: 2011-12-14
JILIN AGRICULTURAL UNIV
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Problems solved by technology

[0014] The invention provides a method for preparing humus soil for rice seedling raising in soda saline-alkali land, which solves the problems of difficulty in taking soil for rice seedling raising, high cost of soil fetching, difficulty in cultivating strong seedlings, slow seedling growth of rice, less effective tillering, and low rice yield.

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  • Preparation method of humus soil for rice seedling cultivation in soda saline-alkali land

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Embodiment 1

[0034] 10 cm of straw 25, source soil 75 (by weight ratio) layered and mixed in pits to improve soil physical properties; chemical fertilizers are added to increase nutrients, nitrogen fertilizer 34, phosphate fertilizer 33, potassium fertilizer 33 (by weight ratio) Make compound fertilizer, apply 1000g compound fertilizer per cubic meter; pour acidified water with pH value of 3.5 to the pit, and the soil moisture will reach the saturated state; cover the pit with 5 cm thick straw to reduce water evaporation and store rainwater to maintain soil moisture ;According to the soil moisture in the pit, water pH 4.2 acidified water 5 times. The seedling humus soil will be prepared in mid-April, and the humus soil will be taken out from the pits in early April of the next year, and 50 ml of Ruimiaoqing shall be applied per cubic meter. After passing through a 7mm sieve and mixing, the size of 2~5mm will reach 80%, organic matter up to 7%, soil pores 65%, bulk density 0.9 g / cm 3 , Soil ...

Embodiment 2

[0036] 10 cm straw 30, source soil 70 (by weight ratio) mixed in layers in the pit to improve soil physical properties; chemical fertilizer is applied to increase nutrients, nitrogen fertilizer 34, phosphate fertilizer 33, potash fertilizer 33 (by weight ratio) Apply 1200 grams of compound fertilizer per cubic meter; pour acidified water with pH value of 3.7 to the pit, and the soil moisture will reach saturation; cover the pit with 5 cm thick straw to reduce water evaporation and store rainwater to maintain soil moisture ; According to the soil moisture condition in the pit, water pH 4.0 acidified water 6 times. The seedling humus soil will be prepared in mid-April, and the humus soil will be taken out from the pits in early April of the next year, and 50 ml of Ruimiaoqing shall be applied per cubic meter. After passing through a 7mm sieve and mixing, the size of 2~5mm will reach 82%, organic matter reaches 6.5%, soil pores 70%, bulk density 0.9 g / cm 3 , Soil pH is 5.5.

Embodiment 3

[0038] 5-10 cm of straw 35, source soil 65 (by weight ratio) layered and mixed in pits to improve soil physical properties; chemical fertilizers are added to increase nutrients, nitrogen fertilizer 34, phosphate fertilizer 33, potash fertilizer 33 (by weight ratio) ) Make compound fertilizer, apply 900 grams of compound fertilizer per cubic meter; pour acidified water with pH value 3.5 to the pit, and the soil moisture will reach a saturated state; cover the pit with 5 cm thick straw to reduce water evaporation and store rainwater to keep it Soil moisture: According to the soil moisture in the pit, water pH 3.9 acidified water 4 times. The seedling humus soil will be prepared in mid-April, and the humus soil will be taken out from the pits in early April of the next year, and 50 ml of Ruimiaoqing shall be applied per cubic meter. After passing through a 7mm sieve and mixing, the size of 2~5mm will reach 79%, organic matter reached 7.2%, soil pores 68%, bulk density 0.9 g / cm 3 ,...

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Abstract

The invention provides a method for preparing humus soil for raising rice seedlings in soda saline-alkali land, which comprises the following steps: pit location selection, pit preparation, source soil selection, additives, preparation and management. According to the requirements for the physical and chemical properties of the humus soil for cultivating strong seedlings of rice, the present invention adopts the artificial natural retting method to produce high-quality humus soil for seedling cultivation, so as to solve the problems of difficult soil acquisition for rice seedling cultivation, high cost of soil acquisition, difficulty in cultivating strong seedlings, and slow growth of rice. Problems such as slow seedlings, few effective tillers, and low rice yields provide guarantees for reducing production costs, cultivating strong seedlings, shortening the slow seedling period, increasing effective tillers, increasing rice yields, and increasing economic benefits for rice seedlings in soda saline-alkali land.

Description

technical field [0001] The invention provides a preparation method of humus soil for raising rice seedlings in soda saline-alkali land, which is used for cultivating strong seedlings of rice and belongs to the technical field of crop cultivation. Background technique [0002] Botanically, rice belongs to the genus Oryzae of Poaceae and is the main food crop in my country. Rice has strong saline-alkali resistance ability, and it can still grow and develop when the total soil content of the plow layer is 0.5% and the pH value is below 10. It is the first choice crop for soil improvement in soda saline-alkali land in the western Songnen Plain. [0003] Rice production consists of two main links, one is the rice seedling stage, that is, rice seedlings are raised in dry conditions; the other is the rice field stage, that is, the field management of rice after transplanting to harvest. One of the important technical links is rice dry seedling cultivation and cultivation of strong...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01B79/02
Inventor 邵玺文王志春耿艳秋李秀军孙彤范丽丽徐惠风张佳还张治安张洪江
Owner JILIN AGRICULTURAL UNIV