Effects of different transplanting depths with one-off double-layer fertilization on growth,yield and quality of flue-cured tobacco;

Effects of planting depth on the plant growth and bulb yield of Lanzhou lily;

The effect of soil preparation and planting depth on growth of stand was analyzed in this paper.

The research chose three testing factors,which were transplanting density,the amount of topdressing urea and the distributive proportions of urea as tiller fertilizer and spike\]et-developing fertilizer under their treated amounts,adopting simplex-lattice design and setting field parameter tests.

The results show that transplanting density greatly affects the establishment of a rapid growing high-yielding colony.

The field experiment was conducted by split-plot design of two factors to study the effects of applying amount of controlled-release nitrogen fertilizer(SCU) and transplanting density on the growth and development and yield of the medium super hybrid rice combination Y Liangyou 1,and the mathematical model of yield to nitrogen rates and transplanting densities was set up.

Effects of Different Sowing Date and Planting Density on Yield Formation and Quality of Two Medium Japonica Rice Varieties in Huaibei;

The largest effect of planting density was found in the first primary.

The results showed that the yield of two super rice hybrids increased with the planting density,and the increase of the number of productive panicles was the main reason for yield increase.

Effects on Japonica Rice Quality by Planting Factors(Ⅲ)——cultivated density affected rice quality;

Pass to study the effect that cultivated density on rice growth and yield, the result showed that: as cultivated density diminish, ex-period the growth measure varied small, middle-later period increased obviously, dominate tillering period and height tillering period postponed, and leaf colours varied steady on the whole growth period, rice yield increased.