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Solid managing technique of arable land includes 6 modes, namely wheat -corn- pachyrhizus mode, wheat-economic crop- pachyrhizus mode, paddy-fish mode, paddy- economic crop mode, fruiter-grass- stock raising mode, vegetable-tea mode etc.

农地立体经营生态技术,包括小麦——玉米——红薯套作模式;小麦——经济作物——红薯套作模式;稻——鱼模式;稻——旱模式;果草畜结合模式,蔬菜设施栽培模式和茶果结合模式。

There were significant quality disadvantages of intercropped maize compared with the sole.

套作玉米和单作玉米相比则表现出明显的间套作品质劣势。

There were significant quality advantages of intercropped wheat compared with sole wheat.

套作小麦和单作小麦相比具有明显的间套作品质优势,且间作小麦表现出明显的边行品质优势。

The non-contact affection among the garlic srouts root system led to the raise of catalase and sucrase activities,as well as the corn.

对玉米蒜苗套作根区进行隔膜、隔网和无隔处理以及各自单作处理,通过处理间的相互比较,分析影响套作产量的主要土壤因素。

The effects of spring-sown maize and summer-sown maize inter-planting on nitrogen balance,yield,quality and benefit were studied.

简述了春夏玉米套作在土壤氮素平衡、子粒产量、营养产量及纯收入等方面的表现,并提出了春夏套作高产优质高效的栽培技术要点。

But relay-cropping with spring-sown different maturity maize cultivars can obviously affect the biomass, grain yield, and nutritive values of the same summer-sown maize cultivars.

当夏玉米为同一品种时,夏玉米生物产量和营养价值表现为:与春玉米LD14套作>与春玉米YD22套作>与春玉米YD13套作

Relay-planted with different spring-sown maize, the yearly nitrogen absorption quantity of relay-planted with spring-sown early maturity maize was highest, those of relay-planted with spring-sown middle maturity maize were middle, and those of relay-planted with spring-sown late maturity maize were lowest.

与不同春玉米套作时,全年氮素吸收量以与早熟春玉米套作时最高,其次是与中熟春玉米套作,最低的是与春晚熟品种套作

No matter mono-cropping and relay-planting, the increase of nitrogen use could improve the SPS activity of spring-sown maize and high oil summer-sown maize at the stage of 20 DAA, but decrease those of normal summer-sown maize.

无论单作还是套作,增施氮肥使春玉米穗位叶花后20天的SPS活性增强,但套作时高氮却使穗位叶SPS略有下降;增施氮肥使普通夏玉米穗位叶SPS活性下降,高油夏玉米穗位叶SPS活性增加。

Difference of nitrogen competition and utilization in relay system Relay-planted with same late maturity or early maturity spring-sown maize, the yearly nitrogen absorption quantity of summer-sown late maturity maize YD 13 was highest, those of summer-sown middle maturity maize were middle, and those of summer-sown early maturity maize were lowest. While relay-planted with middle maturity, the yearly nitrogen absorption quantity of summer-sown late maturity maize YD13 was highest, those of summer-sown early maturity maize were middle, and those of summer-sown middle maturity maize were lowest.

不同熟期春夏玉米套作氮素竞争利用及其对产量和品质的影响 2.1 套作体系氮素竞争利用差异研究结果表明,与相同晚熟、早熟春玉米套作的夏晚熟品种YD13套作模式全年吸氮量均较高,其次是中熟品种,早熟品种全年吸氮量最低;而与中熟春玉米品种套作时,仍以夏晚熟品种YD13套作模式全年吸氮量最高,其次是早熟品种,中熟品种套作模式全年吸氮量最低。

Inwheat intercropped with soybean not only N situation could be improved butalso P situation could be.2In intercropping,the pH of soybean rhizospherewas decreased by increasing the R-Apase activity,which could decelerate thetransforming and fixing P fertilizer.3In both monoculture and intercroppingsystem,the soil pH of rhizosphere was affected by cropping system at two Plevel which only 0.1-4mm distance from the root surface,but the effect of S-Apase activity in the rhizospher soil by cropping system was less than3mm.In effect,the rhizosphere P was really available nutrient,and applyingP to rhizosphere was effective ways to reduce the P nutrient competition.4Inwheat/soybean intercropping,the peak stage of reduction ability of roots wasthe same as that of the root growth,so that the time compensation appearedin intensity of nutrient absorption.

套作大豆、小麦、玉米根系Apase的差异又反映出大豆利用土壤磷的潜在能力最大,而玉米最小,可见禾谷类的小麦与大豆间套后不但能改善小麦的氮素营养状况还使磷素营养也得以好转。2)间套大豆根际pH值的下降,导致磷肥施入土壤后形成〓-P的比例显著提高,转化成〓-P等难溶性磷减少,说明间套的大豆能减缓肥料磷在土壤中的转化和固定,减少磷素向无效化方向转化。3)复合群体根际土壤pH值的影响一般只发生在0.1-4mm的根际微区,而土壤磷酸酶的影响供磷与否在距根表3mm以外都无多大差异,说明根际磷才是真正有效磷,根际施磷是解决磷素竞争的有效途径。4)。

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