Method for cultivating hybrid rice in red loam

A technology of hybrid rice and cultivation methods, applied in the field of rice cultivation in red loam, which can solve the problems of different technical indicators, matching characteristics of red loam soil, unfavorable high yield of hybrid rice, etc., to save water resources, advance drying of fields, and time interval for heading small effect

Inactive Publication Date: 2016-08-10
XIANNING AGRI ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to all current information, the existing high-yield cultivation techniques for hybrid rice are mostly aimed at general paddy soil, and a small amount of rice planting in red loam has been studied, but they are not matched with the characteristics of red loam, and the technical indicators are different, which is not conducive to High Yield Hybrid Rice

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Example 1 : An Early Hybrid Rice Variety Liangyou 287

[0011] Soil characteristics: The soil is red soil, with 1.10% soil organic matter, 119ppm alkaline nitrogen, 2.2ppm available phosphorus, 69ppm available potassium, and 5.2 soil pH.

[0012] Variety source: HD9802S (Huda 51 / Hongfuzao)×R287 (Ezao 17×Guinong 07P6) was bred by the School of Life Sciences, Hubei University.

[0013] Characteristics: This variety is a temperature-sensitive two-line hybrid rice planted in early rice in Hubei, with a full growth period of about 117 days. The plant type is tight, the tiller is weak, the leaf color is dark green, the leaf posture is straight, the bud sheaths, leaf sheaths, ligules, leaf ears, and lemma tips are all colorless, the lodging resistance is strong, the rice quality is high, and effective per mu The number of ears is 176,000, the plant height is 97.7 cm, the ear length is 20.5 cm, the total number of grains per ear is 141.4, the seed setting rate is 80.5%, the...

Embodiment 2

[0016] Example 2 : Hybrid rice Yangliangyou 6

[0017] Soil characteristics: The soil is red soil, with 1.12% soil organic matter, 117ppm alkaline nitrogen, 2.3ppm available phosphorus, 65ppm available potassium, and 5.1 soil pH.

[0018] Variety source: Guangzhan 63-4S×Yangdao 6, bred by Jiangsu Lixiahe Agricultural Science Research Institute.

[0019] Characteristics: This variety is an indica-type two-line hybrid rice. In the middle and lower reaches of the Yangtze River, the average growth period of a season of mid-season rice is 134.1 days, which is 0.7 days later than the control Shanyou 63. The plant type is moderate, the stalk is thick, the growth is luxuriant, the tip of the lemma is awned, the color changes well in the later stage, the plant height is 120.6 cm, the effective number of panicles per mu is 166,000 panicles, the panicle length is 24.6 cm, the total number of grains per panicle is 167.5 grains, and the seed setting rate 78.3%, thousand grain weight 2...

Embodiment 3

[0022] Example 3 : Hybrid late rice Yueyou 9113

[0023] Soil characteristics: The soil is red soil, with 1.09% soil organic matter, 119ppm alkaline nitrogen, 2.1ppm available phosphorus, 68ppm available potassium, and 5.2 soil pH.

[0024] Variety source: Yue 4A×Yuehui 9113, bred by the Agricultural Science and Technology Institute of Yueyang City, Hunan Province.

[0025] Characteristics: This variety is an indica-type three-line hybrid rice. The average growth period of the double-cropping late rice in Hubei is about 118 days. The plant height is 92.7 cm, the plant type is moderate, the growth is luxuriant, the flag leaves are short and narrow, the lodging resistance is strong, and it is easy to shatter. The effective number of ears per mu is 226,000 ears, the length of the ears is 22.7 cm, the total number of grains per ear is 107.8 grains, the seed setting rate is 80.3%, and the thousand-grain weight is 25.5 grams. Resistance: rice blast level 9, bacterial blight leve...

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PUM

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Abstract

The invention provides a method for cultivating hybrid rice in red loam. The method comprises steps as follows: a 'sparse, sufficient and early' high-yield culture technique of hybrid rice is adopted; 'sparse' refers to sparse seeding; the seeding quantity of the rice field is within 10 kg per mu, and strong seedlings with two or more tillers are cultivated; 'sufficient' refers to sufficient application of base fertilizers and sufficient transplanting of basic seedlings, the total quantity of the fertilizers for each mu is as follows: 12.0 kg of N, 6.0 kg of P2O5 and 9.0 kg of K2O, and 150,000-160,000 basic seedlings of early rice and late rice are sufficiently transplanted in each mu, and 120,000-130,000 basic seedlings of middle-season rice are sufficiently transplanted in each mu; 'early' refers to early topdressing and early field drying; topdressing is performed immediately after transplantation and green returning, early maturing is promoted, field drying is started after the seedlings of early rice and late rice reach about 200,000 in each mu, field drying is started after the seedlings of middle-season rice reach about 160,000 in each mu, and the field is dried until feet of people don't sink, the field has cracks and white roots are exposed. Repeated tests prove that by comparison with the prior art, the yield is increased by 10% or above by means of the cultivation method; the method is high in practicability, simple to operate and easy to master for farmers.

Description

technical field [0001] The invention relates to a rice cultivation method, in particular to a red loam rice cultivation method. Background technique [0002] Red soil is widely distributed in my country. It starts from the Yangtze River in the north, extends to the Nanling Mountains and northern Taiwan in the south, and includes the north-central Yunnan-Guizhou Plateau and the southern edge of the Sichuan Basin in the west. Generally, the nutrient content is not high, and the available phosphorus is very little; the pH is between 4.5 and 5.2; the rice is heavy, poor in water and fertility retention, poor in cultivability, sour, sticky, and thin, and the yield of rice is not high. In order to give full play to the potential of increasing the yield of hybrid rice varieties and achieve the matching of good varieties and good methods, there is an urgent need for high-yield cultivation techniques of hybrid rice that match the characteristics of red loam soil. However, according...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01G22/22
CPCA01G22/22
Inventor 沈其文黄志谋姜华
Owner XIANNING AGRI ACADEMY OF SCI
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