渗水地膜节水增产效益试验

Experiment of Saving Water and IncreasingProduction Which Covered Seepage Plastic Film

渗水地膜具有调温、增温、加快发育进程,提高土壤湿度,增加单铃重,改善品质的作用。可提高棉花产量8.4%,具有广泛的推广应用前景。

The seepage plastic film have many functions: regulated temperature,increased weight of single cotton boll,speeded up growing process,and improved soil moisture.The cotton production can be increased 8.4%.So this way has a vast range of prospects.Key words:seepage plastic film;saving water;regulate temperature;increase productionheterocyclic ligands of C(S)NHP(S)(C6H4OCH3)OC(Ph)CH (L1) <IMG SRC='IMAGE/06200014.JPG' HEIGHT=11 WIDTH=12>and C(S)NHC(CH)P(S)(Cl)N(Ph) (L2),the two trinuclear cobalt carbonyl sulfur clusters, Co3(CO)7(μ3 S)[μ,η2 CNP(S)(C6H4OCH3)OC(Ph)CH](Ⅰ) and Co3(CO)7(μ3 S)[μ,η2 SCNC(CH)P(S)(Cl)N(Ph)] (Ⅱ), were prepared and characterized by IR,1H NMR,31P NMR , MS spectroscopy and X ray crystal diffraction.The crystals of Ⅰand Ⅱare triclinic,belonging to space group ,a=0.84768(1)nm,b=1.19043(3)nm,c=1.43639(1)nm,α=86.926(1)°,β=81.603(3)°,γ=88.535(2)°,V=1.4318(5)nm3, Z=2, Dc=1.641g·cm-3,F(000)=716,μ=1.893mm-1,R=0.0602, Rw=0.1515 for complex Ⅰ;a=1.2050(2)nm,b=1.2448(2)nm,c=0.8951(2)nm, α=97.49(1)°,β=93.552(4)°,γ=108.432(3)°, V=1.2554(3)nm3, Z=2, Dc=1.841g·cm-3, F(000)=690,μ=2.419mm-1,R=0.0423, Rw=0.1075 for complex Ⅱ. The structure analyses show that the Co3S frameworks of Ⅰand Ⅱare a triangular pyramid, respectively, and for which the sulfur atom as face bridging ligand and all carbonyls as terminal ligand link up with three cobalts in the cluster framework. Ⅰcontains a four member ring of CoCoCN and Ⅱhas a five member of CoCoSCN.