Rice seedling raising medium

Abstract

The invention discloses a rice seedling raising medium. The rice seedling raising medium is prepared from 96% of powder obtained after livestock and poultry manure is subjected to harmless disposal, 1.5% of urea, 1% of diammonium phosphate, 1.5% of potassium sulfate and naphthylacetic acid accounting for 0.2 wt% of the medium; a preparation method of the powder obtained after the livestock and poultry manure is subjected to harmless disposal comprises the steps that the livestock and poultry manure is piled for fermentation, fermentation is conducted for 5-7 days by keeping the material temperature at 65 DEG C to 70 DEG C, then fermentation is conducted for 38-42 days, fermentation stops when the material temperature is 33 DEG C to 37 DEG C, and the obtained powder is air-dried and crushed, wherein the water content of the powder is higher than or equal to 30%. Compared with a conventional seedling raising medium in the prior art, the rice seeding raising medium has the advantages that dry farmland topsoil, forest topsoil and mountain slope soil are not used, rice field topsoil is used, the formula has the comprehensive nutrients, the quality of rice seedlings can be improved, the seedlings survive quickly after being transplanted, the rice yield is increased by 6% or above, and the economic benefit value is increased by 800 yuan or above per hectare.

Description

technical field [0001] The invention relates to fertilizers, in particular to a substrate for raising rice seedlings. Background technique [0002] Rice is native to tropical Asia, and after being widely planted in China, it gradually spread to all parts of the world. The rice grains produced by rice are called rice or rice after shelling. Nearly half of the world's population feeds on rice. Compared with other crops, The digestibility and absorption rate of nutrients contained in rice are relatively high, which is most suitable for the needs of the human body. After the introduction of rice in northern my country, due to the short growth period in the north and the low yield and poor quality of directly sown rice, rice in the north is cultivated in two stages. The first stage is the seedling raising period in greenhouses. At the Ye Yixin stage, transplant rice seedlings in the field and enter the second stage of cultivation. The ratio of rice seedling raising area to field...

AI Technical Summary

Problems solved by technology

For decades, the collection of seedling soil has caused great damage to the environment. Due to the killing effect of pesticides on rice in dry fields, many phytotoxicity have also occurred, which affects the normal seedling raising of rice.

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