鲁棉研21号适宜播期、密度和施肥量的研究

Study on Optimum Sowing Date,Plant Density and Fertilizer Rate for SCRC 21

2007年在山东省巨野县进行了鲁棉研21号播期、密度和施肥量试验。结果表明,鲁棉研21号的最佳播期为4月20日;最佳种植密度为4.35万株/hm2;最佳施肥量为每666.7m2施尿素30 kg,磷酸二铵40 kg,硫酸钾10 kg,硼砂0.6 kg。该研究结果为鲁棉研21号在适宜推广区域开展良种良法配套栽培技术组装和产业化开发提供了理论依据。

The experiment on sowing date, plant density and fertilizer rate of SCRC 21 was carried out in 2007 in Juye County, Shandong Province . The results showed that the optimum sowing date of SCRC 21 was April 20th ; the optimum plant density was 43.5 thousand plants per hectare, and the optimum fertilizer rate was 30 kg urea ＋ 40 kg （NH4 ）2HPO4 ＋ 10 kg K2SO4 ＋ 0.6 kg sodium borate. All the results provided theoretical basis for popularizing the corresponding cultivation techniques and industry development.