Meng Wang Wei Jun Jian (2 results)

paperback. Condition: New. Paperback. Pub Date: 2018-10-01 Pages: 31 Language: Chinese Publisher: China Agricultural University Press Cotton High Vigor Seed Production Technology Manual The main content includes conventional cotton seed and hybrid cotton parent seed production technology and requirements. hybrid cotton Seed production technology and requirements. cotton seed processing technology and requirements are three parts. involving planting base selection. basic seed requirements. field cultivation management. .…

paperback. Condition: New. Paperback. Pub Date: 2020-08-01 Pages: 347 Language: Chinese Publisher: China Statistics Press Applied Sampling Techniques (2nd Edition)/Thirteenth Five-Year National Statistical Planning Textbook systematically introduces the core sampling methods of sampling theory . Including simple random sampling. stratified random sampling. systematic sampling. single-stage cluster sampling. two-stage sampling. ratio estimation. regression estimation. etc.?In addition. the topic of unanswered questions . …