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(一)试验材料及方法 (1)“科资891”由中国科学院北京科资植物促长素厂提供产品 水稻品种:农囤 (2)试验地:为宝泉岭农场科研站水稻田。公顷施磷酸二铵250千克做底肥,追施尿素200千克,六月三日插秧。供试验地500平方米为一个田块,其中:三分之二喷施“891”,三分之一喷清水为对照,无重复。在七月三十日的水稻孕穗期叶面喷“891”,公顷用水300升,喷后观察水稻生长并按常规考种及测产。 (3)试验处理 “891”公顷用量300毫升; 喷清水为对照; 参考对照:5月20—25日插秧大田 (二)试验结果 1、田间观察:试验地靠近入水口,水稻长势较差,种植者本人都想放弃这块地。喷“891”一周后水
(1) Materials and Methods of Experiments (1) “Keyi 891” is provided by the Beijing Branch of the Chinese Academy of Sciences plant auxin plant rice varieties: Farm Store (2) test site: Baoquan Ridge farm research station paddy fields. Hectare diammonium phosphate 250 kg to make base fertilizer, topdressing urea 200 kg, June 3 planting. For the test 500 square meters for a plots, of which: two-thirds spraying “891”, one-third of spray water as a control, no duplication. At the booting stage of paddy rice on 30 July, “891” was sprayed on the foliage, with 300 liters of water per hectare. After spraying, the rice plants were observed for growth and tested according to the conventional test methods. (3) Test treatment “891” hectare dosage 300 ml; spray water as control; reference control: May 20-25 transplanting field (2) test results 1, field observation: test close to the water inlet, rice growing worse, Growers themselves want to give up this piece of land. Spray “891” a week after the water