Seedling raising method for cultivating superlong-age strong seedlings of machine transplanting rice in wheat-rice double cropping area

A cultivating machine, rice and wheat technology, applied in the field of plant cultivation, can solve the problems of undiscovered seedling raising methods, etc., and achieve the effects of facilitating farmers' operation, reducing production costs, and increasing seedling growth rate

Active Publication Date: 2017-12-22
HANZHONG CITY AGRI TECH PROMOTION CENT
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Problems solved by technology

[0003] Retrieval of related literature at home and abroad: no reports related to seedling raising methods for machine-transplanted rice with super long seedling age and strong seedlings in rice and wheat double-cropping areas were found

Method used

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Embodiment Construction

[0018] The present invention will be further described below:

[0019] Variety selection: mainly high-quality rice varieties, with a full growth period of ≤155 days. Prepare 1.5-1.7 kg of seeds with a germination rate of more than 90% per mu.

[0020] Sowing time: sowing on April 10-15, and the earing time is in early August.

[0021] Nutrient soil preparation: A total of 120 kg of nutrient soil should be prepared for each mu of field seedlings. Select the mature paddy field soil, and use mechanical or semi-mechanical means to crush and sieve the soil 10-20 days before seedling raising (the soil particles are required to be finely crushed, uniform, and the particle size is below 2mm). Use 0.8kg / 100kg of ternary compound fertilizer to fertilize the fine soil. Except that 1 / 3 of the nutritive soil is reserved as cover soil without mixing the seedling strengthening agent, the remaining 2 / 3 of the nutrient soil is mixed with 1.2-1.5kg of seedling strengthening agent per 100kg (...

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Abstract

The invention discloses a seedling raising method for cultivating superlong-age strong seedlings of machine transplanting rice in a wheat-rice double cropping area. The seedling raising method includes variety selecting, seed processing, germination accelerating and chest bursting, seed cooling and sprout hardening, scientific fertilizer preparing for nutrient soil, sowing, seedling raising management, disease and insect damage preventing and controlling and timely machine transplanting. Compared with the prior art, the seedling raising time is 10-15 days longer, 1-2 leaves grow out in the seedling age, seedling age elasticity is improved, and the seedling transplanting stage is prolonged, which is beneficial for peasant operation and reduces intensity of the busy farming season; a late-maturing high-quality rice variety with a long growth period can be selected for a wheat and oilseed rape rice transplanting field, the transplanting variety selection is increased, seedling raising is convenient, sowing amount is reduced, the seedling survival percentage is increased, and production cost is reduced.

Description

technical field [0001] The invention relates to the technical field of plant cultivation, in particular to a seedling raising method for machine-transplanted super-long seedling-age rice seedlings in a rice-wheat double-cropping area. Background technique [0002] Rice machine transplanting is a major technological change in rice production, and it is the development direction of rice production to realize agricultural modernization. Rice mechanical seedling raising is the basis of rice machine transplanting. After years of research, Hanzhong rice machine-transplanted rice seedlings are 30d-40d old, 17cm-25cm high, stem base width ≥ 2.0mm, and white roots ≥ 10. Greenhouse two-stage seedling raising, film seedling raising and open field seedling raising methods, so there is very little room for variety selection, especially late-maturing varieties of wheat and rapeseed can not be planted, and the growth period after planting is not enough to mature normally. This limitation a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G16/00A01G1/00
CPCA01G22/22
Inventor 张万春葛茜屈发科马晓丽史莉娜瞿利英赵芬杨霄莫丹
Owner HANZHONG CITY AGRI TECH PROMOTION CENT
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