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去年,我们金山县金卫、新农等公社种子场进行“早熟3号”播种期试验,结果列表如下: 从上述试验结果,可以得出几点初步结论:1.早熟3号的适宜播种期在11月10日到15日。在11月上旬播种的分蘖率虽高,但成穗率较低,且分蘖穗成熟不一致。穗型比11月中旬播种的并不增大,空瘪率有增加的趋势。早播条件下网斑病加重,植株易早衰。2.早熟3号播种期推迟,全生育期明显缩短。11月上旬播种的一般在5月16日至19日成熟,全生育期191～196天。11月10日左右播种的,一般5月17日至19日成熟,全生育期186～191天。11月中旬播种的,
Last year, we Jinshan County Jinwei, Nongnong and other communes seed field “precocious 3 ” sowing period test, the results are as follows: From the above test results, we can draw a few preliminary conclusions: 1 precocious 3 The sowing date is from November 10 to November 15. In the early November sowing tillering rate is high, but the ear rate is lower, and the tillering spike is inconsistent. Compared with the sowing date in mid November, the panicle type did not increase, and the emptying rate tended to increase. Net scaly disease under the condition of early sowing aggravates, the plant premature decay. Early maturing on the 3rd sowing period postponed, the whole growth period was significantly shorter. Sowing in early November generally May 16 to 19 mature, the whole growth period of 191 to 196 days. About sowing on November 10, generally May 17 to 19 mature, the whole growth period of 186 to 191 days. Sown in mid-November,