论文部分内容阅读
1.阳畦培育壮苗 (1)阳畦的建造:阳畦一般以封冻前建好。选择背风向阳的地块,阳畦四面用土筑墙,北墙高45~50厘米,东西墙顺势而下,南墙高10厘米左右,畦宽140厘米,畦长可根据地的长短而定,每375平方米的阳畦可育1公顷地所用苗子。因父、母本的播期往往不同,应各用一个阳畦。阳畦建好后,将畦土挖出20厘米,整平底部,填一层细土或炉灰,便于起苗带土。将挖出的畦土与有机肥充分混合后过筛,一般每375平方米的阳畦施腐
1. Yang Zhen nurturing strong seedlings (1) the construction of sunshine: Yang Su generally frozen before built. Select the leeward sunny plot, Yang Zhu surrounded by soil wall, the north wall 45 to 50 cm high, the east-west wall homeopathic down, about 10 cm south wall, 畦 wide 140 cm, 畦 long according to the length of the ground may be, each 375 Square meters of fertile 1 hectare seedlings used. Because of the sowing date of the parent and the mother are often different, should each use a yang. Yangjian built, the dug earth dredged 20 cm, leveling the bottom, fill a layer of fine soil or ash to facilitate the seedling with soil. The excavated soil and organic fertilizer fully mixed sieved, the general per 375 square meters of Yang Fu Shi rot