One-hole multi-plants close planting method for saline-alkali soil rice

A planting method and technology for saline-alkali land, which are applied to the field of rice cultivation in saline-alkali land, can solve problems such as unsuitability for saline-alkali land, uneven heading, and low seedling preservation rate, and achieve the effects of enhancing saline-alkali resistance, promoting early ear emergence, and promoting rice growth.

Inactive Publication Date: 2013-02-13
NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0008] The present invention aims to solve the technical problems that the traditional rice cultivation method is not suitable for saline-alkali land, resulting in low s

Method used

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  • One-hole multi-plants close planting method for saline-alkali soil rice
  • One-hole multi-plants close planting method for saline-alkali soil rice
  • One-hole multi-plants close planting method for saline-alkali soil rice

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specific Embodiment approach 1

[0023] Embodiment 1: The planting method for densely planting rice in one hole and multiple plants in saline-alkali land of the present embodiment is carried out according to the following steps:

[0024] 1. Raising seedlings: Choose rice seeds with strong salinity and alkali resistance and suitable for local climatic conditions in the mature period for dry-greenhouse seedlings. Seedlings 2 to 3 days;

[0025] 2. Land preparation: rotary tillage in early spring, the depth of rotary tillage is 15-20cm, soak the field for 7-9 days before planting, and the water depth of the soaked field does not exceed 5cm, and then apply nitrogen, phosphorus and potassium compound fertilizer as the base fertilizer, and the amount of fertilizer is 500-600kg / ha , at the same time, perform mechanical raking, raking to leveling, after raking is completed, change the water 1-2 times, the water depth does not exceed 5cm, and then let the soil naturally settle to the water surface to clarify;

[0026...

specific Embodiment approach 2

[0034] Embodiment 2: The difference between this embodiment and Embodiment 1 is that in step 1, the amount of seeds used for seedling raising is 80 kg / ha, the growth period of the seedbed is 40 days, and other steps and parameters are the same as those in Embodiment 1.

specific Embodiment approach 3

[0035] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the depth of rotary tillage in Step 2 is 15 cm, and other steps and parameters are the same as Embodiment 1 or 2.

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Abstract

The invention provides a one-hole multi-plants close planting method for saline-alkali soil rice, relates to a planting method for saline-alkali soil rice and aims to solve the technical problems that the conventional rice planting methods cannot be applied to saline-alkali soils, so the seedling keeping ration is low, the head sprouting is irregular, and the yield is low. The planting method comprises the following steps of 1, seedling growth: increasing the seedling-seeding amount; 2, soil preparation: performing early spring rotary tillage, steeping field, leveling the soil by harrowing and applying enough base fertilizer; 3, transplanting of seedlings, wherein the transplanting density is 8 to 10 plants per hole, the hole spacing is 10cm and the row spacing is 30cm; and 4, field management: irrigating, applying fertilizer for tillering and fertilizer for head sprouting, weeding and preventing diseases and insects. By the planting method, early heading and early heading time of rice can be ensured, because of a group effect, the planting method can enhance the saline-alkali resistance of rice, promote growth of rice and improve the utilization rate of water fertilizer, and the planting method has the advantages of convenience in implementation, high operability, low cost, increase in yield and the like, and has quite important guiding significance as well as popularization values in the production of saline-alkali soil rice.

Description

technical field [0001] The invention relates to a method for planting rice in saline-alkali land. Background technique [0002] Rice cultivation in saline-alkali land is a successful method for biological control of saline-alkali land. Rice cultivation can not only achieve the effect of washing salt with water and pressing salt with water, but also achieve the purpose of improving and utilizing inferior land resources and improving the ecological environment through farming. The model of “controlling alkali” is the successful experience of large-scale transformation of saline-alkali land in Northeast my country. From the 1950s to the early 1990s, the rice planting area of ​​saline-alkali land in this region has reached 8.0×10 5 ha, accounting for nearly 50% of the total area of ​​paddy fields at that time. In recent years, due to the implementation of the national grain increase plan, the area of ​​rice cultivation in saline-alkali land is increasing exponentially. However,...

Claims

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Application Information

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IPC IPC(8): A01G16/00A01B79/02A01C21/00A01G1/00A01G22/22
Inventor 黄立华梁正伟杨昊谕王明明刘淼
Owner NORTHEAST INST OF GEOGRAPHY & AGRIECOLOGY C A S
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