The treatment of 10kg organic fertilizer +0.5kg fertilizer 3 and different organic fertilizer +different P fertilizer was obvious higher than contrast in promoting dbh increment of poplar.
The better combination is ammonium sulphate 152 g/m2 + calcium superphosphate 92g/m2 + organic fertilizer lokg/m2. It significantly increases the output of high quality seedlings.
In a soil level of 0~20cm , organic matter ,total nitrogen,rapid nitrogen,rapid phosphorus and rapid potassium of the soil fertilized with organic fertilizer were higher than those of the control;
The that of the breast diameter and soil nutrient is Y2 = -1.641872 + 2.227225xi + 0.1553113x5 (R = 0.9416***). Magnolia officinalis should be mainly app-lied with manure, nitric and potassic fertilizers.
With the decreasing application rate of manure,soil TOC,WSOC,MBC and MBC/TOC decreased significantly (P<0.05),and when the application rate of manure was decreased by 50%,soil TOC,WSOC,MBC and MBC/TOC decreased by 10.75%,12.02%,30.94% and 22.61%,respectively.
Result shows: organic manure is 60-75 t /hm2, guest soil is 3 cm annually, deep turning over once a year, and two times weeding can have better economic benefit, and cost is opposite lower.
but N fertilizer, organic manure and the interaction between N fertilizer and organic manure had the significant and positive effects on the tree growth while the application of P K decreased the growth from the third year to the fifth year after planting. Tree volume in the treatment fertilized with N fertilizer and organic manure was increased by 77%.
If unorganic fertilizer,the ratio of N,P and K is 5: 1: 3,with more labor inputs and fertilizer application advocated. 3. The average output value of Ph.
The above enzyme activities of soil applied with total amount of oil cake are 1 24,1 72,1 82,1 55 times as that of check soil in non root region and 1 75,2 10,2 42,1 61 times in root region,respectively.
The TMS treatments greatly improved seedling growth and quality. The best concentration was obtained at the (1?000?mg/L). The seedling height increased by (23.66%), root collar diameter by (14.89%).
This result suggested that in the earlier restoration stage the application of organic fertilizer may be more effective by surface addition to soils than deep addition.
A two-year trial was conducted to test the interactive effects of special-for-apple organic fertilizer, CaSO4, and amino acid Ca on Fuji/Balenghaitang (Malus robusta Rehd.) rootstock in Burozem soil in China.
Two pure cultures of obligate methanotrophs, strains H-11 and O-12, growing in the temperature range from 30 to 61°C with a optimum at 55°C were isolated from samples of silage and manure.