草业科学
草業科學
초업과학
Pratacultural Science
2015年
10期
139-148
,共10页
赵亚兰%陈垣%郭凤霞%郭志军%刘希全
趙亞蘭%陳垣%郭鳳霞%郭誌軍%劉希全
조아란%진원%곽봉하%곽지군%류희전
党参%种苗%土壤含水量%产量%质量
黨參%種苗%土壤含水量%產量%質量
당삼%충묘%토양함수량%산량%질량
Codonopsis pilosula%seedling%soil moisture%yield%quality
在甘肃省陇西县首阳镇对白条党参采用冬播和春播育苗对比试验,通过定期测定土壤含水量、苗栽产量和质量指标,旨在揭示党参冬播和春播育苗效应的差异性,探寻其最佳播种季节,为党参规范化育苗操作提供科学依据。结果表明,陇西县气候条件适宜党参育苗。冬播和春播育苗条件下,党参种子出苗进程变化趋势均呈“S”型曲线,符合 Logistic 方程,快增期在春播后46~48 d。与春播田相比较,冬播育苗田0~20 cm 土层含水量高,党参种子提早6 d 出苗,苗栽产量提高47.8%,个体质量优异。春播育苗田出苗率较冬播田提高27.3%,但苗栽个体小,商品性差。以上说明,党参冬播育苗对规避春季干旱具有一定意义,建议党参规范化育苗按比例采用冬播和春播育苗方法,以降低春季遇严重干旱造成的春播种子不发芽的风险。值得注意的是无论是冬播,还是春播进行党参育苗时,播种后均应及时采取保墒措施,以覆盖小麦秸秆为佳。
在甘肅省隴西縣首暘鎮對白條黨參採用鼕播和春播育苗對比試驗,通過定期測定土壤含水量、苗栽產量和質量指標,旨在揭示黨參鼕播和春播育苗效應的差異性,探尋其最佳播種季節,為黨參規範化育苗操作提供科學依據。結果錶明,隴西縣氣候條件適宜黨參育苗。鼕播和春播育苗條件下,黨參種子齣苗進程變化趨勢均呈“S”型麯線,符閤 Logistic 方程,快增期在春播後46~48 d。與春播田相比較,鼕播育苗田0~20 cm 土層含水量高,黨參種子提早6 d 齣苗,苗栽產量提高47.8%,箇體質量優異。春播育苗田齣苗率較鼕播田提高27.3%,但苗栽箇體小,商品性差。以上說明,黨參鼕播育苗對規避春季榦旱具有一定意義,建議黨參規範化育苗按比例採用鼕播和春播育苗方法,以降低春季遇嚴重榦旱造成的春播種子不髮芽的風險。值得註意的是無論是鼕播,還是春播進行黨參育苗時,播種後均應及時採取保墑措施,以覆蓋小麥秸稈為佳。
재감숙성롱서현수양진대백조당삼채용동파화춘파육묘대비시험,통과정기측정토양함수량、묘재산량화질량지표,지재게시당삼동파화춘파육묘효응적차이성,탐심기최가파충계절,위당삼규범화육묘조작제공과학의거。결과표명,롱서현기후조건괄의당삼육묘。동파화춘파육묘조건하,당삼충자출묘진정변화추세균정“S”형곡선,부합 Logistic 방정,쾌증기재춘파후46~48 d。여춘파전상비교,동파육묘전0~20 cm 토층함수량고,당삼충자제조6 d 출묘,묘재산량제고47.8%,개체질량우이。춘파육묘전출묘솔교동파전제고27.3%,단묘재개체소,상품성차。이상설명,당삼동파육묘대규피춘계간한구유일정의의,건의당삼규범화육묘안비례채용동파화춘파육묘방법,이강저춘계우엄중간한조성적춘파충자불발아적풍험。치득주의적시무론시동파,환시춘파진행당삼육묘시,파충후균응급시채취보상조시,이복개소맥갈간위가。
To determine the most appropriate time to plant Codonopsis pilosula ,an experiment comparing win-ter and spring sowing was conducted.Yield and quality of seedlings and soil water content were measured regu-larly after both sowing times.The results showed that the climatic condition in Longxi County is suitable for cultivating C.pilosula seedlings.Under both winter and spring conditions,the pattern of seedling emergence followed the typical ‘S’curve which was able to be modelled using a logistic regression.Higher soil moisture in the 0-20 cm soil layer in the winter sown field resulted in seedling emergence 6 days earlier compared with spring sowing and yield was increased by 47.8% with good seedling quality.In contrast,the emergence rate of seedlings in the spring-sowing field was 27.3% greater than winter sown but the seedlings were small and of poor quality.In conclusion,the seedling cultivating sown in winter was of great significance to avoid the spring drought,suggesting that the seedling cultivating methods sown winter and spring should be adopted in propor-tion in order to reduce the seed ablastemic risk when sown in spring caused by the severe drought tress.It is worth noting that when cultivating the plant seedlings whether sown in winter or spring the keeping-moisture measures should be promptly taken after sowing and the wheat straw is the perfect for the coverage.