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春小麦地膜覆盖穴播栽培技术具有显著的增产效应，比露地对照增产达４４．４％。全生育期地膜覆盖具有保墒和提高生育前期地温的作用，使覆膜小麦出苗早、整齐，促进营养生长，穗分化时间较长，灌浆充分，穗粒数和千粒重提高。地膜覆盖穴播小麦具有叶面积大、叶绿素含量高、光合“午睡”现象轻和干物质积累多的特点。在拔节期、孕穗期和灌浆期日平均光合速率为１．０８ｍｇＣＯ２／ｄｍ２．ｈ、１３．７０ｍｇＣＯ２／ｄｍ２．ｈ和１１．６２ｍｇＣＯ２／ｄｍ２．ｈ，分别比对照高２３．３％、３３．１％和１２．７％。在拔节期光合速率日变化为单峰型，而在孕穗期和灌浆期则为双峰型。净同化率最高可达１３．０１ｇ／ｍ２．ｄ，平均为８．２４ｇ／ｍ２．ｄ，比对照高０．３８ｇ／ｍ２．ｄ和０．２３ｇ／ｍ２．ｄ。
Spring wheat mulching with film-mulching cultivation technology has a significant yield-increasing effect, yielding 44.4% more than the open field. During the whole growth period, the plastic film mulching has the function of preserving soil moisture and increasing the ground temperature in early growth period, which makes the mulched wheat emerge early and tidy and promote the vegetative growth. The spike differentiation time is longer, filling is sufficient, the grains per spike and grain weight per thousand are increased. Film-mulched planted wheat has the characteristics of large leaf area, high content of chlorophyll, photosynthetic “nap” light and accumulation of dry matter. At jointing, booting and filling stage, the average photosynthetic rate was 1.08mgCO2 / dm2. h, 13.70 mgCO2 / dm2. h and 11.62 mg CO2 / dm2. h, 23.3%, 33.1% and 12.7% higher than the control respectively. Diurnal variation of photosynthetic rate at jointing stage was unimodal, but bimodal at booting and filling stages. Net assimilation rate of up to 13.01g / m2. d, with an average of 8.24g / m2. d, 0.38 g / m2 higher than the control. d and 0.23 g / m2. d.