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通过对比的方法系统研究了葛薯(赣葛5号)的栽培技术,结果表明(1)在红壤类型的土壤中,以坡腰和坡底土壤的葛薯出苗率最高,每hm2产量达12万株左右。以水库尾土壤的葛薯产量最高,每hm2产量达5.5万kg。以坡底土壤的葛薯出粉率最高,达23.6%。(2)挖种植沟是高产栽培的关键技术之一,以沿等高线挖种植沟栽培葛薯增产效果最好,每hm2产量达5万kg。(3)种植密度对葛薯产量和商品合格率有很大影响,以每hm2栽4 500~6 000株的产量和商品合格率最高。(4)种苗质量对成活率和葛薯产量均有显著影响,以一类苗最高,分别为:成活率100%,产量为当年每hm2产1.8万kg。(5)移栽时间不同对葛薯成活率的影响,在江西地区应在4月中旬以前移栽,成活率在85%以上。(6)合理施肥能够提高葛薯的产量及出粉率,比没有施肥分别提高1~1.5倍及1%~2%。同时能够提高黄酮含量,施肥的含量为11.52 mg/g,没有施肥的含量为6.68 mg/g。
The results showed that: (1) Among soil types with red soils, the seedling emergence rate was the highest on the slope and the bottom soil, with the yield per hm2 reaching 12 About 10,000. The highest yield of kupi in the soil at the tail of the reservoir was 55,000 kg per hm2. Soil to the bottom of the slope of the highest kudzu flour, up to 23.6%. (2) Digging and planting ditch is one of the key technologies of high-yielding cultivation. Digging and planting furrow along the contour line will result in the best yield increase, yielding 50000 kg per hm2. (3) The planting density has a great influence on the yield of kiwifruit and the passing rate of the commodity, and the yield of 4 500 ~ 6 000 plants per hm2 is the highest and the passing rate of the commodity is the highest. (4) The seedling quality had a significant effect on the survival rate and the yield of kupffer, the highest was in one kind of seedlings, with the survival rate of 100% and the yield of 18,000 kg per hm2 in that year. (5) The effect of different transplanting time on the survival rate of kiwifruit in Jiangxi should be transplanted before mid-April, with the survival rate above 85%. (6) Reasonable fertilization could increase the yield and flour yield of kiwifruit by 1 ~ 1.5 times and 1% ~ 2% respectively than without fertilization. At the same time, the content of flavonoids could be increased by 11.52 mg / g for fertilizers and 6.68 mg / g for no fertilizers.