Mechanically efficient seed production and sowing method for hybrid wheat

Abstract

The invention discloses a mechanically efficient seed production and sowing method for hybrid wheat. The method comprises the following steps: sowing seeds into a male parent zone and a female parentzone in sequence according to a ratio of 1 to 2, wherein a sowing width in the male parent zone is 1 m, and a sowing width in the female parent zone is 2 m; during sowing, sowing the seeds into the male parent zone by using a narrow-width sowing machine capable of sowing at least 4 lines, and sowing the seeds into the female parent zone by using a sowing machine capable of sowing at least 8 lines,wherein the line spacing is 0.25 m, and no sowing is carried out in a gap of 0.4 m reserved between the male parent zone and the female parent zone. The mechanically efficient seed production and sowing method for the hybrid wheat can realize mechanical operation for sowing and harvesting in combination with the harvesting width of a wheat mainstream harvester in this region according to a landform for wheat planting in the southwest wheat region; the method is simple, normal and efficient, and is small in labor investment, high in seed production yield and high in seed production benefit.

Description

technical field [0001] The invention relates to the technical field of agricultural planting, in particular to a hybrid wheat mechanized high-efficiency seed production and sowing method. Background technique [0002] Utilization of wheat heterosis is considered to be one of the effective ways to further improve yield level, stress resistance and yield stability, and to enrich the genetic basis of wheat varieties. my country has established a supporting light-temperature-sensitive two-line hybrid wheat application technology system. Since 2000 More than ten hybrid wheat varieties have been bred and approved, which has become one of the main ways to utilize wheat heterosis in my country. The yield increase advantage is generally 10%-14%. From 2005 to 2010, a total of 2 million mu of demonstration plants were planted. The "Yunza" and "Jingmai" series of hybrid wheats were demonstrated in Vietnam and Pakistan, and their yield increased by more than 30% compared with the local co...

AI Technical Summary

Problems solved by technology

[0005] The second is that the male parent and the female parent are planted in a certain row ratio, mainly in the southwest or hilly areas. The plots are relatively small and the flatness is not as good as that in the northern plains. It is only suitable for small machinery.

Due to the transfer of a large number of young and middle-aged laborers from rural areas to cities, the manual sowing and harvesting progress of hybrid wheat seed production is slow, the efficiency is low, and the cost is high. The best sowing and harvesting periods are often missed. risks and costs

[0006] Aiming at the above-mentioned problems in hybrid wheat seed production by row ratio, in hilly area hybrid wheat seed production, a 1.2-meter male parent belt and a 2.4-meter female parent belt are planted, and artificial sowing is used, but the harvesting width of the local wheat harvester is wide Only 1.0-1.1 meters, the harvester can't finish harvesting once, and it takes time and oil to go twice, which increases the harvesting cost, and the width of the female parent is too wide, which affects the pollination effect, and ultimately leads to seed production and farmers' income. Both were significantly lower than the past row ratio seed production