Ratooning rice special production-increase regulator, preparation method therefor and application thereof

Abstract

The invention relates to a ratooning rice special production-increase regulator, a preparation method therefor and an application thereof. The regulator contains the following components by weight percent: 21.4-25.6% of plant growth regulator, 0.3-0.6% of organic acid, 6.5-6.7% of active agent and spreader and balance of water, wherein the plant growth regulator contains ethephon and compound potassium nitrophenolate; the organic acid is selected from citric acid, malic acid or succinic acid; and the active agent and the spreader are selected from one or a plurality of tween 20, tween 30, tween 40, tween 60, tween 80 and tween 85. The plant growth regulator is the multi-functional product which can improve the germination bearing tiller, the maturing rate and the thousand seed weight of the axillary buds of the low-level tillering nodes of reverse 3, reverse 4, reverse 5 and the like on the mother stems of the ratooning rice and increase the yield, and has the characteristics of no toxicity, no side effect, low cost, convenient use and the like.

Description

technical field [0001] The invention relates to a regulator, in particular to a special yield-increasing regulator for regenerated rice and a preparation method and application thereof. Background technique [0002] Rice is the most important food crop in my country, with an annual planting area of ​​nearly 33 million hectares and a total output of about 200 million tons, accounting for 30% of the national grain planting area and about 40% of the total grain output. The value is 45.7% higher. Therefore, rice is the food crop with the largest planting area, high unit yield and the largest total output in my country. [0003] Since the beginning of the new century, the international rice market has been very active, with an annual trade volume of about 25 million tons. The main importing countries and regions are Hong Kong, Macau, Japan, South Korea, the Middle East, Eastern Europe and Africa. Compared with the main rice exporting countries such as Thailand and Vietnam, my co...

AI Technical Summary

Problems solved by technology

However, the grain filling period of the first crop rice coincides with the windy and rainy season from the end of June to July. With the addition of bud fertilizer, gibberellin and cytokinin, the first crop rice is very prone to lodging, resulting in lodging of the mother stem and breakage of the main root system. , death, complete loss of regeneration ability

[0008] In order to prevent the lodging of the female stem of the first season rice, people often use triazole plant growth regulators such as paclobutrazol and uniconazole (Shi Nengpu, 1997) to carry out field foliage spraying or cultivate strong seedlings to improve the lodging resistance of the first season rice. However, paclobutrazol and uniconazole greatly reduce the number of grains per ear of the first season rice in the process of reducing the stalk and strengthening the stalk, which leads to a large reduction in yield and late-maturing

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