In this paper the author analyzed and summarized the problems for the innovation of maize germplasm in spring maize zone in Northeast China and put forward some feasible breeding strategies.

Studies on correlation between spring sowing and autumn sowing characters of spring soybeans. Journal of Zhejiang Agricultural University;

The results of experiments for breeding Chosenia arbutifolia show that: sowing along with collecting seed and overshadowing above the seedbed can increase emerging rate about 15 per cent, and the seedlings quality is better than spring sowing apparently; using No.

The growing period, the earbearing number of tiller, the characters of ear and the yield of wheat have been studied in the dryland in Xining area in Qinghai under the treatments of autumn sowing, spring sowing and film mulch after autumn sowing.