Rice dry land pit type seedling culture method

Abstract

The invention discloses a rice dry land pit type seedling culture method, which sequentially comprises seven operation steps of seedling bed selection, soil preparation and compartment forming, seedling bed fertilization and sterilization, seed treatment, seeding, weeding and film covering, and seedling bed management. In the soil preparation and compartment forming step, the compartment opening is carried out according to the compartment length being 1.8m and the compartment width being 1.2 to 1.3m, the width of a passage is 0.5 to 0.6m, the passage is 6 to 10cm higher than the compartment surface, and a water pumping mode can be adopted for irrigating the seedling bed. Compared with a compartment furrow type seedling culture method that the seedling bed can be irrigated only through the manual water carrying, the rice dry land pit type seedling culture method has the advantages that the work intensity of farmers is greatly reduced, meanwhile, the seedling culture method of firstly seeding and then watering is adopted during the seedling, the moisture preservation effect is good, and the sufficient saturation of the seedling bed soil moisture content can be realized through the water pumping irrigation, so the rice seeds sufficiently absorb moisture, the moisture requirement of the rice seeds after the seeding is ensured, the early and fast seedling emerging of the seeds is promoted, and the seedling emerging rate and the seedling emerging regularity of the rice seedlings are improved.

Description

technical field [0001] The invention relates to the field of agricultural plant cultivation, in particular to a dryland seedling raising method for rice. Background technique [0002] There are two kinds of rice seedling raising methods: water raising and dry raising. The rice seedling raising method in dry land is a supplement to the rice raising method, and it is a supplementary measure to solve the problem of raising seedlings in areas with poor water conditions. The method of raising seedlings in dry land has played a very important role in increasing the yield of rice since it was widely promoted in Sichuan Province in the early 1990s. However, in large-scale production, there are generally problems such as irregular seedling emergence and low seedling rate in dry rice seedling cultivation, so that the situation of insufficient seedlings in many places occurs from time to time. Therefore, the area of ​​dry-raised seedlings in production is getting smaller and smaller. ...

AI Technical Summary

Problems solved by technology

According to the box ditch type seedling box planting seedlings, when sowing, it is necessary to manually pick up water to water the bed soil in the seedling box to a saturated state before planting, which not only greatly strengthens the labor intensity of irrigation for farmers, but also often causes Insufficient irrigation affects the quality of seedling emergence

Insufficient and uneven irrigation of the seedbed will result in insufficient water absorption of the seeds or inconsistent reaching the required time, and eventually there will be large differences in the growth process of the individual seedlings, and even the seedlings cannot emerge due to insufficient water absorption, so the problems of uneven emergence and low emergence rate will occur

Images